{"id":123220,"date":"2022-05-12T18:43:58","date_gmt":"2022-05-12T10:43:58","guid":{"rendered":"http:\/\/www.idc.net\/help\/123220\/"},"modified":"2022-05-12T18:43:58","modified_gmt":"2022-05-12T10:43:58","slug":"linux%e4%b8%ad%e7%ac%a6%e5%8f%b7%e7%9a%84%e5%90%ab%e4%b9%89%e8%a7%a3%e6%9e%90-linux%e4%b8%ad%e4%bb%80%e4%b9%88%e6%84%8f%e6%80%9d","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/123220\/","title":{"rendered":"Linux\u4e2d\u7b26\u53f7\u7684\u542b\u4e49\u89e3\u6790 (linux\u4e2d\u4ec0\u4e48\u610f\u601d)"},"content":{"rendered":"<p>\u5728Linux\u7cfb\u7edf\u4e2d\uff0c&gt;\u7b26\u53f7\u5177\u6709\u975e\u5e38\u91cd\u8981\u7684\u4f5c\u7528\uff0c\u88ab\u79f0\u4e3a\u201c\u91cd\u5b9a\u5411\u7b26\u53f7\u201d\u3002\u5728\u5f88\u591a\u573a\u5408\u4e0b\uff0c\u6211\u4eec\u9700\u8981\u5c06\u4e00\u4e2a\u7a0b\u5e8f\u8f93\u51fa\u5230\u63a7\u5236\u53f0\u6216\u8005\u6307\u5b9a\u7684\u6587\u4ef6\u4e2d\u3002\u8fd9\u65f6\uff0c\u5c31\u9700\u8981\u7528\u5230&gt;\u7b26\u53f7\u3002<\/p>\n<p>%3e\u7b26\u53f7\u662f\u7531\u4e24\u4e2a\u5b57\u7b26\u7ec4\u6210\u7684\uff0c\u5373\u201c%\u201d\u548c\u201c3e\u201d\u3002\u5728Linux\u4e2d\uff0c%3e\u8868\u793a&gt;\u7b26\u53f7\uff0c\u4e0eWindows\u4e2d\u4f7f\u7528\u7684&gt;\u7b26\u53f7\u5b8c\u5168\u4e00\u81f4\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u63a2\u8ba8\u5728Linux\u7cfb\u7edf\u4e2d\uff0c%3e\u7b26\u53f7\u7684\u5177\u4f53\u542b\u4e49\u548c\u7528\u6cd5\u3002<\/p>\n<p>\u4e00\u3001%3e\u7b26\u53f7\u7684\u542b\u4e49<\/p>\n<p>%3e\u7b26\u53f7\u7684\u4e3b\u8981\u4f5c\u7528\u5c31\u662f\u5c06\u7a0b\u5e8f\u7684\u8f93\u51fa\u7ed3\u679c\u91cd\u5b9a\u5411\u5230\u6307\u5b9a\u7684\u4f4d\u7f6e\uff0c\u5176\u5177\u4f53\u542b\u4e49\u5982\u4e0b\uff1a<\/p>\n<p>1. \u5c06\u7a0b\u5e8f\u7684\u8f93\u51fa\u7ed3\u679c\u91cd\u5b9a\u5411\u5230\u6587\u4ef6\u4e2d\u3002\u5728\u547d\u4ee4\u884c\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u201ccommand &gt; file\u201d\u7684\u547d\u4ee4\u5c06\u67d0\u4e2a\u7a0b\u5e8f\u7684\u8f93\u51fa\u7ed3\u679c\u4fdd\u5b58\u5230\u6587\u4ef6\u4e2d\u3002\u5176\u4e2d\uff0c\u201ccommand\u201d\u4e3a\u7a0b\u5e8f\u540d\u79f0\uff0c\u201cfile\u201d\u4e3a\u8981\u4fdd\u5b58\u7684\u6587\u4ef6\u540d\u3002\u4f8b\u5982\uff0c\u5982\u679c\u9700\u8981\u5c06ls -al\u547d\u4ee4\u7684\u8f93\u51fa\u7ed3\u679c\u4fdd\u5b58\u5230a.txt\u6587\u4ef6\u4e2d\uff0c\u53ef\u4ee5\u8f93\u5165\u5982\u4e0b\u547d\u4ee4\uff1als -al &gt; a.txt\u3002<\/p>\n<p>2. \u5c06\u7a0b\u5e8f\u7684\u8f93\u51fa\u7ed3\u679c\u66ff\u6362\u7279\u5b9a\u7684\u6587\u672c\u5185\u5bb9\u3002\u5728\u547d\u4ee4\u884c\u4e2d\uff0c\u6211\u4eec\u4e5f\u53ef\u4ee5\u4f7f\u7528\u201ccommand &gt; file\u201d\u7684\u547d\u4ee4\u5c06\u67d0\u4e2a\u7a0b\u5e8f\u7684\u8f93\u51fa\u7ed3\u679c\u66ff\u6362\u5230\u6307\u5b9a\u7684\u6587\u672c\u4e2d\u3002\u4f8b\u5982\uff0c\u5982\u679c\u9700\u8981\u5c06date\u547d\u4ee4\u7684\u8f93\u51fa\u7ed3\u679c\u66ff\u6362\u5230mytext.txt\u6587\u672c\u4e2d\uff0c\u53ef\u4ee5\u8f93\u5165\u5982\u4e0b\u547d\u4ee4\uff1adate &gt; mytext.txt\u3002<\/p>\n<p>\u4e8c\u3001%3e\u7b26\u53f7\u7684\u7528\u6cd5<\/p>\n<p>\u4f7f\u7528%3e\u7b26\u53f7\u7684\u65b9\u6cd5\u975e\u5e38\u7b80\u5355\uff0c\u53ea\u9700\u8981\u5c06\u5176\u653e\u5728\u9700\u8981\u8f93\u51fa\u7ed3\u679c\u7684\u4f4d\u7f6e\u5373\u53ef\u3002\u4ee5\u4e0b\u662f\u51e0\u4e2a\u5b9e\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5728Linux\u7cfb\u7edf\u4e2d\u4f7f\u7528%3e\u7b26\u53f7\uff1a<\/p>\n<p>1.\u91cd\u5b9a\u5411\u8f93\u51fa\u5230\u6587\u4ef6<\/p>\n<p>\u547d\u4ee4\uff1als \/var\/spool | grep ml &gt; ml.txt<\/p>\n<p>\u6267\u884c\u8be5\u547d\u4ee4\u540e\uff0c\u7a0b\u5e8f\u4f1a\u5c06\/var\/spool\u76ee\u5f55\u4e0b\u7684\u6240\u6709\u90ae\u4ef6\u76f8\u5173\u6587\u4ef6\u5217\u51fa\u6765\uff0c\u5e76\u5c06\u5217\u51fa\u7684\u7ed3\u679c\u5b58\u50a8\u5230ml.txt\u6587\u4ef6\u4e2d\u3002<\/p>\n<p>2. \u5728\u6587\u4ef6\u5939\u4e0b\u641c\u7d22\u6587\u4ef6\u5e76\u5c06\u5176\u8f93\u51fa\u5230\u6307\u5b9a\u6587\u4ef6\u4e2d<\/p>\n<p>\u547d\u4ee4\uff1afind . -name \u201c*.txt\u201d &gt; files.txt<\/p>\n<p>\u6267\u884c\u8be5\u547d\u4ee4\u540e\uff0c\u7a0b\u5e8f\u4f1a\u5728\u5f53\u524d\u76ee\u5f55\u4ee5\u53ca\u5176\u5b50\u76ee\u5f55\u4e2d\u641c\u7d22\u6240\u6709\u5177\u6709txt\u6269\u5c55\u540d\u7684\u6587\u4ef6\uff0c\u5e76\u5c06\u641c\u7d22\u7ed3\u679c\u5b58\u50a8\u5230files.txt\u6587\u4ef6\u4e2d\u3002<\/p>\n<p>3. \u5c06\u7a0b\u5e8f\u7684\u8f93\u51fa\u7ed3\u679c\u4fdd\u5b58\u5230\u6307\u5b9a\u7684\u76ee\u5f55\u4e2d<\/p>\n<p>\u547d\u4ee4\uff1als \/var\/log &gt; \/home\/user\/logs.txt<\/p>\n<p>\u6267\u884c\u8be5\u547d\u4ee4\u540e\uff0c\u7a0b\u5e8f\u5c06\/var\/log\u76ee\u5f55\u4e0b\u6240\u6709\u6587\u4ef6\u7684\u5217\u8868\u8f93\u51fa\u5230\u63a7\u5236\u53f0\uff0c\u5e76\u5c06\u7ed3\u679c\u4fdd\u5b58\u5230\/home\/user\/logs.txt\u6587\u4ef6\u4e2d\u3002<\/p>\n<p>4. \u5411\u5df2\u7ecf\u5b58\u5728\u7684\u6587\u4ef6\u4e2d\u8ffd\u52a0\u8f93\u51fa\u5185\u5bb9<\/p>\n<p>\u547d\u4ee4\uff1aecho \u201chello world\u201d &gt;&gt; mytext.txt<\/p>\n<p>\u6267\u884c\u8be5\u547d\u4ee4\u540e\uff0c\u7a0b\u5e8f\u4f1a\u5c06\u201chello world\u201d\u8ffd\u52a0\u5230mytext.txt\u6587\u4ef6\u7684\u672b\u5c3e\u3002<\/p>\n<p>%3e\u7b26\u53f7\u5e7f\u6cdb\u5e94\u7528\u4e8eLinux\u7cfb\u7edf\u4e2d\u7684\u547d\u4ee4\u884c\u64cd\u4f5c\uff0c\u662f\u4e00\u9879\u975e\u5e38\u5b9e\u7528\u7684\u5de5\u5177\u3002\u5e0c\u671b\u672c\u6587\u80fd\u591f\u8ba9\u8bfb\u8005\u66f4\u52a0\u6df1\u5165\u5730\u4e86\u89e3\u548c\u638c\u63e1%3e\u7b26\u53f7\u7684\u5177\u4f53\u542b\u4e49\u548c\u7528\u6cd5\uff0c\u63d0\u9ad8Linux\u547d\u4ee4\u884c\u64cd\u4f5c\u7684\u80fd\u529b\u3002<\/p>\n<p><strong>\u76f8\u5173\u95ee\u9898\u62d3\u5c55\u9605\u8bfb\uff1a<\/strong><\/p>\n<ul>\n<li>linux\u547d\u4ee4\u91cc\u9762 nohup\u547d\u4ee4\u548c &amp; \u662f\u4e0d\u662f\u4e00\u4e2a\u610f\u601d\u554a\uff0c\u4e0d\u6302\u65ad\u662f\u4ec0\u4e48\u610f\u601d\u3002<\/li>\n<\/ul>\n<h3>linux\u547d\u4ee4\u91cc\u9762 nohup\u547d\u4ee4\u548c &amp; \u662f\u4e0d\u662f\u4e00\u4e2a\u610f\u601d\u554a\uff0c\u4e0d\u6302\u65ad\u662f\u4ec0\u4e48\u610f\u601d\u3002<\/h3>\n<p>nohup\/setsid\/&amp;<\/p>\n<p>\u573a\u666f\uff1a<\/p>\n<p>\u5982\u679c\u53ea\u662f\u4e34\u65f6\u6709\u4e00\u4e2a\u547d\u4ee4\u9700\u8981\u957f\u65f6\u95f4\u8fd0\u884c\uff0c\u4ec0\u4e48\u65b9\u6cd5\u80fd\u6700\u7b80\u4fbf\u7684\u4fdd\u8bc1\u5b83\u5728\u540e\u53f0\u7a33\u5b9a\u8fd0\u884c\u5462\uff1f<\/p>\n<\/p>\n<p>hangup \u540d\u79f0\u7684\u6765\u7531<\/p>\n<p>\u5728 Unix \u7684\u65e9\u671f\u7248\u672c\u4e2d\uff0c\u6bcf\u4e2a\u7ec8\u7aef\u90fd\u4f1a\u901a\u8fc7 modem \u548c\u7cfb\u7edf\u901a\u8baf\u3002\u5f53\u7528\u6237 logout \u65f6\uff0cmodem \u5c31\u4f1a\u6302\u65ad\uff08hang up\uff09\u3002 \u540c\u7406\uff0c\u5f53 modem \u65ad\u5f00\u8fde\u63a5\u65f6\uff0c\u5c31\u4f1a\u7ed9\u7ec8\u7aef\u53d1\u9001 hangup \u4fe1\u53f7\u6765\u901a\u77e5\u5176\u5173\u95ed\u6240\u6709\u5b50\u8fdb\u7a0b\u3002<\/p>\n<p>\u89e3\u51b3\u65b9\u6cd5\uff1a<\/p>\n<p> \u6211\u4eec\u77e5\u9053\uff0c\u5f53\u7528\u6237\u6ce8\u9500\uff08logout\uff09\u6216\u8005\u7f51\u7edc\u65ad\u5f00\u65f6\uff0c\u7ec8\u7aef\u4f1a\u6536\u5230 HUP\uff08hangup\uff09\u4fe1\u53f7\u4ece\u800c\u5173\u95ed\u5176\u6240\u6709\u5b50\u8fdb\u7a0b\u3002\u56e0\u6b64\uff0c\u6211\u4eec\u7684\u89e3\u51b3\u529e\u6cd5\u5c31\u6709\u4e24\u79cd\u9014\u5f84\uff1a\u8981\u4e48\u8ba9\u8fdb\u7a0b\u5ffd\u7565 HUP \u4fe1\u53f7\uff0c\u8981\u4e48\u8ba9\u8fdb\u7a0b\u8fd0\u884c\u5728\u65b0\u7684\u4f1a\u8bdd\u91cc\u4ece\u800c\u6210\u4e3a\u4e0d\u5c5e\u4e8e\u6b64\u7ec8\u7aef\u7684\u5b50\u8fdb\u7a0b\u3002<\/p>\n<\/p>\n<p>1. nohup<\/p>\n<p>nohup \u65e0\u7591\u662f\u6211\u4eec\u9996\u5148\u60f3\u5230\u7684\u529e\u6cd5\u3002\u987e\u540d\u601d\u4e49\uff0cnohup \u7684\u7528\u9014\u5c31\u662f\u8ba9\u63d0\u4ea4\u7684\u547d\u4ee4\u5ffd\u7565 hangup \u4fe1\u53f7\u3002\u8ba9\u6211\u4eec\u5148\u5144\u4e4e\u71c3\u6765\u770b\u4e00\u4e0b nohup \u7684\u5e2e\u52a9\u4fe1\u606f\uff1a<\/p>\n<p>NOHUP(1)User CommandsNOHUP(1)<\/p>\n<p>NAME<\/p>\n<p>nohup \u2013 run a command immune to hangups, with output to a non-tty<\/p>\n<p>SYNOPSIS<\/p>\n<p>nohup COMMAND \u2026<\/p>\n<\/p>\n<p>nohup OPTION<\/p>\n<p>DESCRIPTION<\/p>\n<p>Run COMMAND, ignoring hangup signals.<\/p>\n<p>help display this help and exit<\/p>\n<p>version<\/p>\n<p>output version information and exit<\/p>\n<p>\u53ef\u89c1\uff0cnohup \u7684\u4f7f\u7528\u662f\u5341\u5206\u65b9\u4fbf\u7684\uff0c\u53ea\u9700\u5728\u8981\u5904\u7406\u7684\u547d\u4ee4\u524d\u52a0\u4e0a nohup \u5373\u53ef\uff0c\u6807\u51c6\u8f93\u51fa\u548c\u6807\u51c6\u9519\u8bef\u7f3a\u7701\u4f1a\u88ab\u91cd\u5b9a\u5411\u5230 nohup.out \u6587\u4ef6\u4e2d\u3002\u4e00\u822c\u6211\u4eec\u53ef\u5728\u7ed3\u7fa1\u865a\u5c3e\u52a0\u4e0a\u201d&amp;\u201d\u6765\u5c06\u547d\u4ee4\u540c\u65f6\u653e\u5165\u540e\u53f0\u8fd0\u884c\uff0c\u4e5f\u53ef\u7528\u201d&gt;filename 2&gt;&amp;1\u2033\u6765\u66f4\u6539\u7f3a\u7701\u7684\u91cd\u5b9a\u5411\u6587\u4ef6\u540d\u3002<\/p>\n<p>nohup \u793a\u4f8b<\/p>\n<p># nohup ping <\/p>\n<\/p>\n<p>www.ibm.com<\/p>\n<p> &amp;<\/p>\n<p> 3059<\/p>\n<\/p>\n<p>nohup: appending output to `nohup.out\u2019<\/p>\n<p># ps -ef |grep 3059<\/p>\n<\/p>\n<p>root:06 pts\/:00:00 ping <\/p>\n<p>www.ibm.com<\/p>\n<p>root:06 pts\/:00:00 grep 3059<\/p>\n<p>#<\/p>\n<\/p>\n<p>2\u3002setsid<\/p>\n<p>nohup <\/p>\n<p>\u65e0\u7591\u80fd\u901a\u8fc7\u5ffd\u7565 HUP \u4fe1\u53f7\u6765\u4f7f\u6211\u4eec\u7684\u8fdb\u7a0b\u907f\u514d\u4e2d\u9014\u88ab\u4e2d\u65ad\uff0c\u4f46\u5982\u679c\u6211\u4eec\u6362\u4e2a\u89d2\u5ea6\u601d\u8003\uff0c\u5982\u679c\u6211\u4eec\u7684\u8fdb\u7a0b\u4e0d\u5c5e\u4e8e\u63a5\u53d7 HUP <\/p>\n<p>\u4fe1\u53f7\u7684\u7ec8\u7aef\u7684\u5b50\u8fdb\u7a0b\uff0c\u90a3\u4e48\u81ea\u7136\u4e5f\u5c31\u4e0d\u4f1a\u53d7\u5230 HUP \u4fe1\u53f7\u7684\u5f71\u54cd\u4e86\u3002setsid \u5c31\u80fd\u5e2e\u52a9\u6211\u4eec\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u8ba9\u6211\u4eec\u5148\u6765\u770b\u4e00\u4e0b setsid <\/p>\n<p>\u7684\u5e2e\u52a9\u4fe1\u606f\uff1a<\/p>\n<p>SETSID(8) Linux Programmer\u2019s Manual SETSID(8)<\/p>\n<p>NAME<\/p>\n<p>setsid \u2013 run a program in a new session<\/p>\n<p>SYNOPSIS<\/p>\n<p>setsid program <\/p>\n<p>DESCRIPTION<\/p>\n<p>setsid runs a program in a new session.<\/p>\n<p>\u53ef\u89c1 setsid \u7684\u4f7f\u7528\u4e5f\u662f\u975e\u5e38\u65b9\u4fbf\u7684\uff0c\u4e5f\u53ea\u9700\u5728\u8981\u5904\u7406\u7684\u9877\u6270\u547d\u4ee4\u524d\u52a0\u4e0a setsid \u5373\u53ef\u3002<\/p>\n<p>setsid \u793a\u4f8b<\/p>\n<p># setsid ping <\/p>\n<\/p>\n<p>www.ibm.com<\/p>\n<p># ps -ef |grep <\/p>\n<\/p>\n<p>www.ibm.com<\/p>\n<p>root:28 ?:00:00 ping <\/p>\n<p>www.ibm.com<\/p>\n<p>root:29 pts\/:00:00 grep <\/p>\n<p>www.ibm.com<\/p>\n<p>#<\/p>\n<\/p>\n<p>\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c\u4e0a\u4f8b\u4e2d\u6211\u4eec\u7684\u8fdb\u7a0b ID(PID)\u4e3a31094\uff0c\u800c\u5b83\u7684\u7236 ID\uff08PPID\uff09\u4e3a1\uff08\u5373\u4e3a init \u8fdb\u7a0b ID\uff09\uff0c\u5e76\u4e0d\u662f\u5f53\u524d\u7ec8\u7aef\u7684\u8fdb\u7a0b ID\u3002\u8bf7\u5c06\u6b64\u4f8b\u4e0enohup \u4f8b\u4e2d\u7684\u7236 ID \u505a\u6bd4\u8f83\u3002<\/p>\n<p>3\u3002&amp;<\/p>\n<p>\u8fd9\u91cc\u8fd8\u6709\u4e00\u4e2a\u5173\u4e8e subshell \u7684\u5c0f\u6280\u5de7\u3002\u6211\u4eec\u77e5\u9053\uff0c\u5c06\u4e00\u4e2a\u6216\u591a\u4e2a\u547d\u540d\u5305\u542b\u5728\u201c()\u201d\u4e2d\u5c31\u80fd\u8ba9\u8fd9\u4e9b\u547d\u4ee4\u5728\u5b50 shell \u4e2d\u8fd0\u884c\u4e2d\uff0c\u4ece\u800c\u6269\u5c55\u51fa\u5f88\u591a\u6709\u8da3\u7684\u529f\u80fd\uff0c\u6211\u4eec\u73b0\u5728\u8981\u8ba8\u8bba\u7684\u5c31\u662f\u5176\u4e2d\u4e4b\u4e00\u3002<\/p>\n<p>\u5f53\u6211\u4eec\u5c06\u201d&amp;\u201d\u4e5f\u653e\u5165\u201c()\u201d\u5185\u4e4b\u540e\uff0c\u6211\u4eec\u5c31\u4f1a\u53d1\u73b0\u6240\u63d0\u4ea4\u7684\u4f5c\u4e1a\u5e76\u4e0d\u5728\u4f5c\u4e1a\u5217\u8868\u4e2d\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u662f\u65e0\u6cd5\u901a\u8fc7jobs\u6765\u67e5\u770b\u7684\u3002\u8ba9\u6211\u4eec\u6765\u770b\u770b\u4e3a\u4ec0\u4e48\u8fd9\u6837\u5c31\u80fd\u8eb2\u8fc7 HUP \u4fe1\u53f7\u7684\u5f71\u54cd\u5427\u3002<\/p>\n<p>subshell \u793a\u4f8b<\/p>\n<p># (ping <\/p>\n<\/p>\n<p>www.ibm.com<\/p>\n<p> &amp;)<\/p>\n<p># ps -ef |grep <\/p>\n<\/p>\n<p>www.ibm.com<\/p>\n<p>root:13 pts\/:00:00 ping <\/p>\n<p>www.ibm.com<\/p>\n<p>root:13 pts\/:00:00 grep <\/p>\n<p>www.ibm.com<\/p>\n<p>#<\/p>\n<\/p>\n<p>\u4ece\u4e0a\u4f8b\u4e2d\u53ef\u4ee5\u770b\u51fa\uff0c\u65b0\u63d0\u4ea4\u7684\u8fdb\u7a0b\u7684\u7236 ID\uff08PPID\uff09\u4e3a1\uff08init \u8fdb\u7a0b\u7684 PID\uff09\uff0c\u5e76\u4e0d\u662f\u5f53\u524d\u7ec8\u7aef\u7684\u8fdb\u7a0b ID\u3002\u56e0\u6b64\u5e76\u4e0d\u5c5e\u4e8e\u5f53\u524d\u7ec8\u7aef\u7684\u5b50\u8fdb\u7a0b\uff0c\u4ece\u800c\u4e5f\u5c31\u4e0d\u4f1a\u53d7\u5230\u5f53\u524d\u7ec8\u7aef\u7684 HUP \u4fe1\u53f7\u7684\u5f71\u54cd\u4e86\u3002<\/p>\n<p>\u56de\u9875\u9996<\/p>\n<p>disown<\/p>\n<p>\u573a\u666f\uff1a<\/p>\n<p>\u6211\u4eec\u5df2\u7ecf\u77e5\u9053\uff0c\u5982\u679c\u4e8b\u5148\u5728\u547d\u4ee4\u524d\u52a0\u4e0a nohup \u6216\u8005 setsid \u5c31\u53ef\u4ee5\u907f\u514d HUP \u4fe1\u53f7\u7684\u5f71\u54cd\u3002\u4f46\u662f\u5982\u679c\u6211\u4eec\u672a\u52a0\u4efb\u4f55\u5904\u7406\u5c31\u5df2\u7ecf\u63d0\u4ea4\u4e86\u547d\u4ee4\uff0c\u8be5\u5982\u4f55\u8865\u6551\u624d\u80fd\u8ba9\u5b83\u907f\u514d HUP \u4fe1\u53f7\u7684\u5f71\u54cd\u5462\uff1f<\/p>\n<\/p>\n<p>\u89e3\u51b3\u65b9\u6cd5\uff1a<\/p>\n<p>\u8fd9\u65f6\u60f3\u52a0 nohup \u6216\u8005 setsid \u5df2\u7ecf\u4e3a\u65f6\u5df2\u665a\uff0c\u53ea\u80fd\u901a\u8fc7\u4f5c\u4e1a\u8c03\u5ea6\u548c disown \u6765\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u4e86\u3002\u8ba9\u6211\u4eec\u6765\u770b\u4e00\u4e0b disown \u7684\u5e2e\u52a9\u4fe1\u606f\uff1a<\/p>\n<\/p>\n<p>disown <\/p>\n<\/p>\n<p>Without options, each jobspec is removed from the table of<\/p>\n<p>active jobs. If the -h option is given, each jobspec is not<\/p>\n<p>removed from the table, but is marked so that SIGHUP is not<\/p>\n<p>sent to the job if the shell receives a SIGHUP. If no jobspec<\/p>\n<p>is present, and neither the -a nor the -r option is supplied,<\/p>\n<p>the current job is used. If no jobspec is supplied, the -a<\/p>\n<p>option means to remove or mark all jobs; the -r option without<\/p>\n<p>a jobspec argument restricts operation to running jobs. The<\/p>\n<p>return value is 0 unless a jobspec does not specify a valid<\/p>\n<p>job.<\/p>\n<p>\u53ef\u4ee5\u770b\u51fa\uff0c\u6211\u4eec\u53ef\u4ee5\u7528\u5982\u4e0b\u65b9\u5f0f\u6765\u8fbe\u6210\u6211\u4eec\u7684\u76ee\u7684\u3002<\/p>\n<p>\u7075\u6d3b\u8fd0\u7528 CTRL-z<\/p>\n<p>\u5728<\/p>\n<p>\u6211\u4eec\u7684\u65e5\u5e38\u5de5\u4f5c\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u7528 CTRL-z \u6765\u5c06\u5f53\u524d\u8fdb\u7a0b\u6302\u8d77\u5230\u540e\u53f0\u6682\u505c\u8fd0\u884c\uff0c\u6267\u884c\u4e00\u4e9b\u522b\u7684\u64cd\u4f5c\uff0c\u7136\u540e\u518d\u7528 fg \u6765\u5c06\u6302\u8d77\u7684\u8fdb\u7a0b\u91cd\u65b0\u653e\u56de\u524d\u53f0\uff08\u4e5f\u53ef\u7528<\/p>\n<p> bg <\/p>\n<p>\u6765\u5c06\u6302\u8d77\u7684\u8fdb\u7a0b\u653e\u5728\u540e\u53f0\uff09\u7ee7\u7eed\u8fd0\u884c\u3002\u8fd9\u6837\u6211\u4eec\u5c31\u53ef\u4ee5\u5728\u4e00\u4e2a\u7ec8\u7aef\u5185\u7075\u6d3b\u5207\u6362\u8fd0\u884c\u591a\u4e2a\u4efb\u52a1\uff0c\u8fd9\u4e00\u70b9\u5728\u8c03\u8bd5\u4ee3\u7801\u65f6\u5c24\u4e3a\u6709\u7528\u3002\u56e0\u4e3a\u5c06\u4ee3\u7801\u7f16\u8f91\u5668\u6302\u8d77\u5230\u540e\u53f0\u518d\u91cd\u65b0\u653e<\/p>\n<p>\u56de\u65f6\uff0c\u5149\u6807\u5b9a\u4f4d\u4ecd\u7136\u505c\u7559\u5728\u4e0a\u6b21\u6302\u8d77\u65f6\u7684\u4f4d\u7f6e\uff0c\u907f\u514d\u4e86\u91cd\u65b0\u5b9a\u4f4d\u7684\u9ebb\u70e6\u3002<\/p>\n<p>\u7528disown -h jobspec\u6765\u4f7f\u67d0\u4e2a\u4f5c\u4e1a\u5ffd\u7565HUP\u4fe1\u53f7\u3002<\/p>\n<p>\u7528disown -ah \u6765\u4f7f\u6240\u6709\u7684\u4f5c\u4e1a\u90fd\u5ffd\u7565HUP\u4fe1\u53f7\u3002<\/p>\n<p>\u7528disown -rh \u6765\u4f7f\u6b63\u5728\u8fd0\u884c\u7684\u4f5c\u4e1a\u5ffd\u7565HUP\u4fe1\u53f7\u3002<\/p>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5f53\u4f7f\u7528\u8fc7 disown \u4e4b\u540e\uff0c\u4f1a\u5c06\u628a\u76ee\u6807\u4f5c\u4e1a\u4ece\u4f5c\u4e1a\u5217\u8868\u4e2d\u79fb\u9664\uff0c\u6211\u4eec\u5c06\u4e0d\u80fd\u518d\u4f7f\u7528jobs\u6765\u67e5\u770b\u5b83\uff0c\u4f46\u662f\u4f9d\u7136\u80fd\u591f\u7528ps -ef\u67e5\u627e\u5230\u5b83\u3002<\/p>\n<p>\u4f46\u662f\u8fd8\u6709\u4e00\u4e2a\u95ee\u9898\uff0c\u8fd9\u79cd\u65b9\u6cd5\u7684\u64cd\u4f5c\u5bf9\u8c61\u662f\u4f5c\u4e1a\uff0c\u5982\u679c\u6211\u4eec\u5728\u8fd0\u884c\u547d\u4ee4\u65f6\u5728\u7ed3\u5c3e\u52a0\u4e86\u201d&amp;\u201d\u6765\u4f7f\u5b83\u6210\u4e3a\u4e00\u4e2a\u4f5c\u4e1a\u5e76\u5728\u540e\u53f0\u8fd0\u884c\uff0c\u90a3\u4e48\u5c31\u4e07\u4e8b\u5927\u5409\u4e86\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7jobs\u547d\u4ee4\u6765\u5f97\u5230\u6240\u6709\u4f5c\u4e1a\u7684\u5217\u8868\u3002\u4f46\u662f\u5982\u679c\u5e76\u6ca1\u6709\u628a\u5f53\u524d\u547d\u4ee4\u4f5c\u4e3a\u4f5c\u4e1a\u6765\u8fd0\u884c\uff0c\u5982\u4f55\u624d\u80fd\u5f97\u5230\u5b83\u7684\u4f5c\u4e1a\u53f7\u5462\uff1f\u7b54\u6848\u5c31\u662f\u7528 CTRL-z\uff08\u6309\u4f4fCtrl\u952e\u7684\u540c\u65f6\u6309\u4f4fz\u952e\uff09\u4e86\uff01<\/p>\n<p>CTRL-z \u7684\u7528\u9014\u5c31\u662f\u5c06\u5f53\u524d\u8fdb\u7a0b\u6302\u8d77\uff08Suspend\uff09\uff0c\u7136\u540e\u6211\u4eec\u5c31\u53ef\u4ee5\u7528jobs\u547d\u4ee4\u6765\u67e5\u8be2\u5b83\u7684\u4f5c\u4e1a\u53f7\uff0c\u518d\u7528bg jobspec\u6765\u5c06\u5b83\u653e\u5165\u540e\u53f0\u5e76\u7ee7\u7eed\u8fd0\u884c\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5982\u679c\u6302\u8d77\u4f1a\u5f71\u54cd\u5f53\u524d\u8fdb\u7a0b\u7684\u8fd0\u884c\u7ed3\u679c\uff0c\u8bf7\u614e\u7528\u6b64\u65b9\u6cd5\u3002<\/p>\n<p>disown \u793a\u4f8b1\uff08\u5982\u679c\u63d0\u4ea4\u547d\u4ee4\u65f6\u5df2\u7ecf\u7528\u201c&amp;\u201d\u5c06\u547d\u4ee4\u653e\u5165\u540e\u53f0\u8fd0\u884c\uff0c\u5219\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u201cdisown\u201d\uff09<\/p>\n<p># cp -r testLargeFile largeFile &amp;<\/p>\n<\/p>\n<p> 4825<\/p>\n<\/p>\n<p># jobs<\/p>\n<\/p>\n<p>+ Running cp -i -r testLargeFile largeFile &amp;<\/p>\n<\/p>\n<p># disown -h %1<\/p>\n<\/p>\n<p># ps -ef |grep largeFile<\/p>\n<\/p>\n<p>root:46 pts\/:00:00 cp -i -r testLargeFile largeFile<\/p>\n<p>root:46 pts\/:00:00 grep largeFile<\/p>\n<p># logout<\/p>\n<\/p>\n<p>disown \u793a\u4f8b2\uff08\u5982\u679c\u63d0\u4ea4\u547d\u4ee4\u65f6\u672a\u4f7f\u7528\u201c&amp;\u201d\u5c06\u547d\u4ee4\u653e\u5165\u540e\u53f0\u8fd0\u884c\uff0c\u53ef\u4f7f\u7528 CTRL-z \u548c\u201cbg\u201d\u5c06\u5176\u653e\u5165\u540e\u53f0\uff0c\u518d\u4f7f\u7528\u201cdisown\u201d\uff09<\/p>\n<p># cp -r testLargeFile largeFile2<\/p>\n<\/p>\n<p>+ Stopped cp -i -r testLargeFile largeFile2<\/p>\n<\/p>\n<p># bg %1<\/p>\n<\/p>\n<p>+ cp -i -r testLargeFile largeFile2 &amp;<\/p>\n<\/p>\n<p># jobs<\/p>\n<\/p>\n<p>+ Running cp -i -r testLargeFile largeFile2 &amp;<\/p>\n<\/p>\n<p># disown -h %1<\/p>\n<\/p>\n<p># ps -ef |grep largeFile2<\/p>\n<\/p>\n<p>root:04 pts\/:00:00 cp -i -r testLargeFile largeFile2<\/p>\n<p>root:05 pts\/:00:00 grep largeFile2<\/p>\n<p>#<\/p>\n<\/p>\n<p>\u56de\u9875\u9996<\/p>\n<p>screen<\/p>\n<p>\u573a\u666f\uff1a<\/p>\n<p>\u6211\u4eec\u5df2\u7ecf\u77e5\u9053\u4e86\u5982\u4f55\u8ba9\u8fdb\u7a0b\u514d\u53d7 HUP \u4fe1\u53f7\u7684\u5f71\u54cd\uff0c\u4f46\u662f\u5982\u679c\u6709\u5927\u91cf\u8fd9\u79cd\u547d\u4ee4\u9700\u8981\u5728\u7a33\u5b9a\u7684\u540e\u53f0\u91cc\u8fd0\u884c\uff0c\u5982\u4f55\u907f\u514d\u5bf9\u6bcf\u6761\u547d\u4ee4\u90fd\u505a\u8fd9\u6837\u7684\u64cd\u4f5c\u5462\uff1f<\/p>\n<\/p>\n<p>\u89e3\u51b3\u65b9\u6cd5\uff1a<\/p>\n<p>\u6b64\u65f6\u6700\u65b9\u4fbf\u7684\u65b9\u6cd5\u5c31\u662f screen <\/p>\n<p>\u4e86\u3002\u7b80\u5355\u7684\u8bf4\uff0cscreen \u63d0\u4f9b\u4e86 ANSI\/VT100 \u7684\u7ec8\u7aef\u6a21\u62df\u5668\uff0c\u4f7f\u5b83\u80fd\u591f\u5728\u4e00\u4e2a\u771f\u5b9e\u7ec8\u7aef\u4e0b\u8fd0\u884c\u591a\u4e2a\u5168\u5c4f\u7684\u4f2a\u7ec8\u7aef\u3002screen <\/p>\n<p>\u7684\u53c2\u6570\u5f88\u591a\uff0c\u5177\u6709\u5f88\u5f3a\u5927\u7684\u529f\u80fd\uff0c\u6211\u4eec\u5728\u6b64\u4ec5\u4ecb\u7ecd\u5176\u5e38\u7528\u529f\u80fd\u4ee5\u53ca\u7b80\u8981\u5206\u6790\u4e00\u4e0b\u4e3a\u4ec0\u4e48\u4f7f\u7528 screen \u80fd\u591f\u907f\u514d HUP \u4fe1\u53f7\u7684\u5f71\u54cd\u3002\u6211\u4eec\u5148\u770b\u4e00\u4e0b <\/p>\n<p>screen \u7684\u5e2e\u52a9\u4fe1\u606f\uff1a<\/p>\n<p>SCREEN(1) SCREEN(1)<\/p>\n<p>NAME<\/p>\n<p>screen \u2013 screen manager with VT100\/ANSI terminal emulation<\/p>\n<p>SYNOPSIS<\/p>\n<p>screen &gt;<\/p>\n<p>screen -r tty&gt;<\/p>\n<\/p>\n<p>screen -r sessionowner\/tty&gt;<\/p>\n<\/p>\n<p>DESCRIPTION<\/p>\n<p>Screen is a full-screen window manager that multiplexes a physical<\/p>\n<p>terminal between several processes (typically interactive shells).<\/p>\n<p>Each virtual terminal provides the functions of a DEC VT100 terminal<\/p>\n<p>and, in addition, several control functions from the ISO(ECMA<\/p>\n<p>, ANSI X3.64) and ISO 2023 standards (e.g. insert\/delete line and<\/p>\n<p>support for multiple character sets). There is a scrollback history<\/p>\n<p>buffer for each virtual terminal and a copy-and-paste mechani that<\/p>\n<p>allows moving text regions between windows.<\/p>\n<p>\u4f7f\u7528 screen \u5f88\u65b9\u4fbf\uff0c\u6709\u4ee5\u4e0b\u51e0\u4e2a\u5e38\u7528\u9009\u9879\uff1a<\/p>\n<p>\u7528screen -dmS session name\u6765\u5efa\u7acb\u4e00\u4e2a\u5904\u4e8e\u65ad\u5f00\u6a21\u5f0f\u4e0b\u7684\u4f1a\u8bdd\uff08\u5e76\u6307\u5b9a\u5176\u4f1a\u8bdd\u540d\uff09\u3002<\/p>\n<p>\u7528screen -list \u6765\u5217\u51fa\u6240\u6709\u4f1a\u8bdd\u3002<\/p>\n<p>\u7528screen -r session name\u6765\u91cd\u65b0\u8fde\u63a5\u6307\u5b9a\u4f1a\u8bdd\u3002<\/p>\n<p>\u7528\u5feb\u6377\u952eCTRL-a d \u6765\u6682\u65f6\u65ad\u5f00\u5f53\u524d\u4f1a\u8bdd\u3002<\/p>\n<p>screen \u793a\u4f8b<\/p>\n<p># screen -dmS Urumchi<\/p>\n<\/p>\n<p># screen -list<\/p>\n<\/p>\n<p>There is a screen on:<\/p>\n<p>.Urumchi (Detached)<\/p>\n<p>1 Socket in \/tmp\/screens\/S-root.<\/p>\n<p># screen -r Urumchi<\/p>\n<\/p>\n<p>\u5f53\u6211\u4eec\u7528\u201c-r\u201d\u8fde\u63a5\u5230 screen \u4f1a\u8bdd\u540e\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u5728\u8fd9\u4e2a\u4f2a\u7ec8\u7aef\u91cc\u9762\u4e3a\u6240\u6b32\u4e3a\uff0c\u518d\u4e5f\u4e0d\u7528\u62c5\u5fc3 HUP \u4fe1\u53f7\u4f1a\u5bf9\u6211\u4eec\u7684\u8fdb\u7a0b\u9020\u6210\u5f71\u54cd\uff0c\u4e5f\u4e0d\u7528\u7ed9\u6bcf\u4e2a\u547d\u4ee4\u524d\u90fd\u52a0\u4e0a\u201cnohup\u201d\u6216\u8005\u201csetsid\u201d\u4e86\u3002\u8fd9\u662f\u4e3a\u4ec0\u4e48\u5462\uff1f\u8ba9\u6211\u6765\u770b\u4e00\u4e0b\u4e0b\u9762\u4e24\u4e2a\u4f8b\u5b50\u5427\u3002<\/p>\n<p>1. \u672a\u4f7f\u7528 screen \u65f6\u65b0\u8fdb\u7a0b\u7684\u8fdb\u7a0b\u6811<\/p>\n<p># ping <\/p>\n<\/p>\n<p>www.google.com<\/p>\n<p> &amp;<\/p>\n<p> 9499<\/p>\n<\/p>\n<p># pstree -H 9499<\/p>\n<\/p>\n<p>init\u2500\u252c\u2500Xvnc<\/p>\n<p> \u251c\u2500acpid<\/p>\n<p> \u251c\u2500atd<\/p>\n<p> \u251c\u25002*<\/p>\n<\/p>\n<p> \u251c\u2500sshd\u2500\u252c\u2500sshd\u2500\u2500\u2500bash\u2500\u2500\u2500pstree<\/p>\n<p> \u2502\u2514\u2500sshd\u2500\u2500\u2500bash\u2500\u2500\u2500ping<\/p>\n<p>\u6211\u4eec\u53ef\u4ee5\u770b\u51fa\uff0c\u672a\u4f7f\u7528 screen \u65f6\u6211\u4eec\u6240\u5904\u7684 bash \u662f sshd \u7684\u5b50\u8fdb\u7a0b\uff0c\u5f53 ssh \u65ad\u5f00\u8fde\u63a5\u65f6\uff0cHUP \u4fe1\u53f7\u81ea\u7136\u4f1a\u5f71\u54cd\u5230\u5b83\u4e0b\u9762\u7684\u6240\u6709\u5b50\u8fdb\u7a0b\uff08\u5305\u62ec\u6211\u4eec\u65b0\u5efa\u7acb\u7684 ping \u8fdb\u7a0b\uff09\u3002<\/p>\n<p>2. \u4f7f\u7528\u4e86 screen \u540e\u65b0\u8fdb\u7a0b\u7684\u8fdb\u7a0b\u6811<\/p>\n<p># screen -r Urumchi<\/p>\n<\/p>\n<p># ping <\/p>\n<\/p>\n<p>www.ibm.com<\/p>\n<p> &amp;<\/p>\n<p> 9488<\/p>\n<\/p>\n<p># pstree -H 9488<\/p>\n<\/p>\n<p>init\u2500\u252c\u2500Xvnc<\/p>\n<p> \u251c\u2500acpid<\/p>\n<p> \u251c\u2500atd<\/p>\n<p> \u251c\u2500screen\u2500\u2500\u2500bash\u2500\u2500\u2500ping<\/p>\n<p> \u251c\u25002*<\/p>\n<\/p>\n<p>\u800c\u4f7f\u7528\u4e86 screen \u540e\u5c31\u4e0d\u540c\u4e86\uff0c\u6b64\u65f6 bash \u662f screen \u7684\u5b50\u8fdb\u7a0b\uff0c\u800c screen \u662f init\uff08PID\u4e3a1\uff09\u7684\u5b50\u8fdb\u7a0b\u3002\u90a3\u4e48\u5f53 ssh \u65ad\u5f00\u8fde\u63a5\u65f6\uff0cHUP \u4fe1\u53f7\u81ea\u7136\u4e0d\u4f1a\u5f71\u54cd\u5230 screen \u4e0b\u9762\u7684\u5b50\u8fdb\u7a0b\u4e86\u3002<\/p>\n<p>\u573a\u666f\uff1a<\/p>\n<p>\u5982\u679c\u53ea\u662f\u4e34\u65f6\u6709\u4e00\u4e2a\u547d\u4ee4\u9700\u8981\u957f\u65f6\u95f4\u8fd0\u884c\uff0c\u4ec0\u4e48\u65b9\u6cd5\u80fd\u6700\u7b80\u4fbf\u7684\u4fdd\u8bc1\u5b83\u5728\u540e\u53f0\u7a33\u5b9a\u8fd0\u884c\u5462\uff1f<\/p>\n<p>hangup \u540d\u79f0\u7684\u6765\u7531<\/p>\n<p>\u5728 Unix \u7684\u65e9\u671f\u7248\u672c\u4e2d\uff0c\u6bcf\u4e2a\u7ec8\u7aef\u90fd\u4f1a\u901a\u8fc7 modem \u548c\u7cfb\u7edf\u901a\u8baf\u3002\u5f53\u7528\u6237 logout \u65f6\uff0cmodem \u5c31\u4f1a\u6302\u65ad\uff08hang up\uff09\u3002 \u540c\u7406\uff0c\u5f53 modem \u65ad\u5f00\u8fde\u63a5\u65f6\uff0c\u5c31\u4f1a\u7ed9\u7ec8\u7aef\u53d1\u9001 hangup \u4fe1\u53f7\u6765\u901a\u77e5\u5176\u5173\u95ed\u6240\u6709\u5b50\u8fdb\u7a0b\u3002<\/p>\n<p>\u89e3\u51b3\u65b9\u6cd5\uff1a<\/p>\n<p>\u6211\u4eec\u77e5\u9053\uff0c\u5f53\u7528\u6237\u6ce8\u9500\uff08logout\uff09\u6216\u8005\u7f51\u7edc\u65ad\u5f00\u65f6\uff0c\u7ec8\u7aef\u5dee\u584c\u4f1a\u6536\u5230 HUP\uff08hangup\uff09\u4fe1\u53f7\u4ece\u800c\u5173\u95ed\u5176\u6240\u6709\u5b50\u8fdb\u7a0b\u3002\u56e0\u6b64\uff0c\u6211\u4eec\u5acc\u5e86\u8ba9\u7684\u89e3\u51b3\u529e\u6cd5\u5c31\u6709\u4e24\u79cd\u9014\u5f84\uff1a\u8981\u4e48\u8ba9\u8fdb\u7a0b\u5ffd\u7565 HUP \u4fe1\u53f7\uff0c\u8981\u4e48\u8ba9\u8fdb\u7a0b\u8fd0\u884c\u5728\u65b0\u7684\u4f1a\u8bdd\u91cc\u4ece\u800c\u6210\u4e3a\u4e0d\u5c5e\u4e8e\u6b64\u7ec8\u7aef\u7684\u5b50\u8fdb\u7a0b\u3002<\/p>\n<p>1. nohup<\/p>\n<p>nohup \u65e0\u7591\u662f\u6211\u4eec\u9996\u5148\u60f3\u5230\u7684\u529e\u6cd5\u3002\u987e\u540d\u601d\u4e49\uff0cnohup \u7684\u7528\u9014\u5c31\u662f\u8ba9\u63d0\u4ea4\u7684\u547d\u4ee4\u5ffd\u7565 hangup \u4fe1\u53f7\u3002\u8ba9\u6211\u4eec\u5148\u6765\u770b\u4e00\u4e0b nohup \u7684\u5e2e\u52a9\u4fe1\u606f\uff1a<\/p>\n<p>NOHUP(1)User CommandsNOHUP(1)<\/p>\n<p>NAME<\/p>\n<p>nohup \u2013 run a command immune to hangups, with output to a non-tty<\/p>\n<p>SYNOPSIS<\/p>\n<p>nohup COMMAND \u2026<\/p>\n<\/p>\n<p>nohup OPTION<\/p>\n<p>DESCRIPTION<\/p>\n<p>Run COMMAND, ignoring hangup signals.<\/p>\n<p>\u2013help display this help and exit<\/p>\n<p>\u2013version<\/p>\n<p>output version information and exit<\/p>\n<p>\u53ef\u89c1\uff0cnohup \u7684\u4f7f\u7528\u662f\u5341\u5206\u65b9\u4fbf\u7684\uff0c\u53ea\u9700\u5728\u8981\u5904\u7406\u7684\u547d\u4ee4\u524d\u52a0\u4e0a nohup \u5373\u53ef\uff0c\u6807\u51c6\u8f93\u51fa\u548c\u6807\u51c6\u9519\u8bef\u7f3a\u7701\u4f1a\u88ab\u91cd\u5b9a\u5411\u5230 nohup.out \u6587\u4ef6\u4e2d\u3002\u4e00\u822c\u6211\u4eec\u53ef\u5728\u7ed3\u5c3e\u52a0\u4e0a\u201d&amp;\u201d\u6765\u5c06\u547d\u4ee4\u540c\u65f6\u653e\u5165\u540e\u53f0\u8fd0\u884c\uff0c\u4e5f\u53ef\u7528\u201d&gt;filename 2&gt;&amp;1\u2033\u6765\u66f4\u6539\u7f3a\u7701\u7684\u91cd\u5b9a\u5411\u6587\u4ef6\u540d\u3002<\/p>\n<p>nohup \u793a\u4f8b<\/p>\n<p># nohup ping <\/p>\n<\/p>\n<p>www.ibm.com<\/p>\n<p> &amp;<\/p>\n<p> 3059<\/p>\n<\/p>\n<p>nohup: appending output to `nohup.out\u2019<\/p>\n<p># ps -ef |grep 3059<\/p>\n<\/p>\n<p>root:06 pts\/:00:00 ping <\/p>\n<p>www.ibm.com<\/p>\n<p>root:06 pts\/:00:00 grep 3059<\/p>\n<p>#<\/p>\n<\/p>\n<p>2\u3002setsid<\/p>\n<p>nohup <\/p>\n<p>\u65e0\u7591\u80fd\u901a\u8fc7\u5ffd\u7565 HUP \u4fe1\u53f7\u6765\u4f7f\u6211\u4eec\u7684\u8fdb\u7a0b\u907f\u514d\u4e2d\u9014\u88ab\u4e2d\u65ad\uff0c\u4f46\u5982\u679c\u6211\u4eec\u6362\u4e2a\u89d2\u5ea6\u601d\u8003\uff0c\u5982\u679c\u6211\u4eec\u7684\u8fdb\u7a0b\u4e0d\u5c5e\u4e8e\u63a5\u53d7 HUP <\/p>\n<p>\u4fe1\u53f7\u7684\u7ec8\u7aef\u7684\u5b50\u8fdb\u7a0b\uff0c\u90a3\u4e48\u81ea\u7136\u4e5f\u5c31\u4e0d\u4f1a\u53d7\u5230 HUP \u4fe1\u53f7\u7684\u5f71\u54cd\u4e86\u3002setsid \u5c31\u80fd\u5e2e\u52a9\u6211\u4eec\u505a\u5230\u8fd9\u4e00\u70b9\u3002\u8ba9\u6211\u4eec\u5148\u6765\u770b\u4e00\u4e0b setsid <\/p>\n<p>\u7684\u5e2e\u52a9\u4fe1\u606f\uff1a<\/p>\n<p>SETSID(8) &nbsp; Linux Programmer\u2019s Manual\u82b9\u5c40 &nbsp; SETSID(8)<\/p>\n<p>NAME<\/p>\n<p>setsid \u2013 run a program in a new session<\/p>\n<p>SYNOPSIS<\/p>\n<p>setsid program <\/p>\n<p>DESCRIPTION<\/p>\n<p>setsid runs a program in a new session.<\/p>\n<p>\u53ef\u89c1 setsid \u7684\u4f7f\u7528\u4e5f\u662f\u975e\u5e38\u65b9\u4fbf\u7684\uff0c\u4e5f\u53ea\u9700\u5728\u8981\u5904\u7406\u7684\u547d\u4ee4\u524d\u52a0\u4e0a setsid \u5373\u53ef\u3002<\/p>\n<p>setsid \u793a\u4f8b<\/p>\n<p># setsid ping <\/p>\n<\/p>\n<p>www.ibm.com<\/p>\n<p># ps -ef |grep <\/p>\n<\/p>\n<p>www.ibm.com<\/p>\n<p>root:28 ?:00:00 ping <\/p>\n<p>www.ibm.com<\/p>\n<p>root:29 pts\/:00:00 grep <\/p>\n<p>www.ibm.com<\/p>\n<p>#<\/p>\n<\/p>\n<p>\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c\u4e0a\u4f8b\u4e2d\u6211\u4eec\u7684\u8fdb\u7a0b ID(PID)\u4e3a31094\uff0c\u800c\u5b83\u7684\u7236 ID\uff08PPID\uff09\u4e3a1\uff08\u5373\u4e3a init \u8fdb\u7a0b ID\uff09\uff0c\u5e76\u4e0d\u662f\u5f53\u524d\u7ec8\u7aef\u7684\u8fdb\u7a0b ID\u3002\u8bf7\u5c06\u6b64\u4f8b\u4e0enohup \u4f8b\u4e2d\u7684\u7236 ID \u505a\u6bd4\u8f83\u3002<\/p>\n<p>3\u3002&amp;<\/p>\n<p>\u8fd9\u91cc\u8fd8\u6709\u4e00\u4e2a\u5173\u4e8e subshell \u7684\u5c0f\u6280\u5de7\u3002\u6211\u4eec\u77e5\u9053\uff0c\u5c06\u4e00\u4e2a\u6216\u591a\u4e2a\u547d\u540d\u5305\u542b\u5728\u201c()\u201d\u4e2d\u5c31\u80fd\u8ba9\u8fd9\u4e9b\u547d\u4ee4\u5728\u5b50 shell \u4e2d\u8fd0\u884c\u4e2d\uff0c\u4ece\u800c\u6269\u5c55\u51fa\u5f88\u591a\u6709\u8da3\u7684\u529f\u80fd\uff0c\u6211\u4eec\u73b0\u5728\u8981\u8ba8\u8bba\u7684\u5c31\u662f\u5176\u4e2d\u4e4b\u4e00\u3002<\/p>\n<p>\u5f53\u6211\u4eec\u5c06\u201d&amp;\u201d\u4e5f\u653e\u5165\u201c()\u201d\u5185\u4e4b\u540e\uff0c\u6211\u4eec\u5c31\u4f1a\u53d1\u73b0\u6240\u63d0\u4ea4\u7684\u4f5c\u4e1a\u5e76\u4e0d\u5728\u4f5c\u4e1a\u5217\u8868\u4e2d\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u662f\u65e0\u6cd5\u901a\u8fc7jobs\u6765\u67e5\u770b\u7684\u3002\u8ba9\u6211\u4eec\u6765\u770b\u770b\u4e3a\u4ec0\u4e48\u8fd9\u6837\u5c31\u80fd\u8eb2\u8fc7 HUP \u4fe1\u53f7\u7684\u5f71\u54cd\u5427\u3002<\/p>\n<p>subshell \u793a\u4f8b<\/p>\n<p># (ping <\/p>\n<\/p>\n<p>www.ibm.com<\/p>\n<p> &amp;)<\/p>\n<p># ps -ef |grep <\/p>\n<\/p>\n<p>www.ibm.com<\/p>\n<p>root:13 pts\/:00:00 ping <\/p>\n<p>www.ibm.com<\/p>\n<p>root:13 pts\/:00:00 grep <\/p>\n<p>www.ibm.com<\/p>\n<p>#<\/p>\n<\/p>\n<p>\u4ece\u4e0a\u4f8b\u4e2d\u53ef\u4ee5\u770b\u51fa\uff0c\u65b0\u63d0\u4ea4\u7684\u8fdb\u7a0b\u7684\u7236 ID\uff08PPID\uff09\u4e3a1\uff08init \u8fdb\u7a0b\u7684 PID\uff09\uff0c\u5e76\u4e0d\u662f\u5f53\u524d\u7ec8\u7aef\u7684\u8fdb\u7a0b ID\u3002\u56e0\u6b64\u5e76\u4e0d\u5c5e\u4e8e\u5f53\u524d\u7ec8\u7aef\u7684\u5b50\u8fdb\u7a0b\uff0c\u4ece\u800c\u4e5f\u5c31\u4e0d\u4f1a\u53d7\u5230\u5f53\u524d\u7ec8\u7aef\u7684 HUP \u4fe1\u53f7\u7684\u5f71\u54cd\u4e86\u3002<\/p>\n<p>\u56de\u9875\u9996<\/p>\n<p>disown<\/p>\n<p>\u573a\u666f\uff1a<\/p>\n<p>\u6211\u4eec\u5df2\u7ecf\u77e5\u9053\uff0c\u5982\u679c\u4e8b\u5148\u5728\u547d\u4ee4\u524d\u52a0\u4e0a nohup \u6216\u8005 setsid \u5c31\u53ef\u4ee5\u907f\u514d HUP \u4fe1\u53f7\u7684\u5f71\u54cd\u3002\u4f46\u662f\u5982\u679c\u6211\u4eec\u672a\u52a0\u4efb\u4f55\u5904\u7406\u5c31\u5df2\u7ecf\u63d0\u4ea4\u4e86\u547d\u4ee4\uff0c\u8be5\u5982\u4f55\u8865\u6551\u624d\u80fd\u8ba9\u5b83\u907f\u514d HUP \u4fe1\u53f7\u7684\u5f71\u54cd\u5462\uff1f<\/p>\n<p>\u89e3\u51b3\u65b9\u6cd5\uff1a<\/p>\n<p>\u8fd9\u65f6\u60f3\u52a0 nohup \u6216\u8005 setsid \u5df2\u7ecf\u4e3a\u65f6\u5df2\u665a\uff0c\u53ea\u80fd\u901a\u8fc7\u4f5c\u4e1a\u8c03\u5ea6\u548c disown \u6765\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u4e86\u3002\u8ba9\u6211\u4eec\u6765\u770b\u4e00\u4e0b disown \u7684\u5e2e\u52a9\u4fe1\u606f\uff1a<\/p>\n<p>disown <\/p>\n<\/p>\n<p>Without options, each jobspec is &nbsp;removed &nbsp;from &nbsp;the &nbsp;table &nbsp;of<\/p>\n<p>active &nbsp;jobs. &nbsp; If &nbsp;the -h option is given, each jobspec is not<\/p>\n<p>removed from the table, but is marked so &nbsp;that &nbsp;SIGHUP &nbsp;is &nbsp;not<\/p>\n<p>sent &nbsp;to the job if the shell receives a SIGHUP. &nbsp;If no jobspec<\/p>\n<p>is present, and neither the -a nor the -r option &nbsp;is &nbsp;supplied,<\/p>\n<p>the &nbsp;current &nbsp;job &nbsp;is &nbsp;used. &nbsp;If no jobspec is supplied, the -a<\/p>\n<p>option means to remove or mark all jobs; the -r option &nbsp;without<\/p>\n<p>a &nbsp;jobspec &nbsp;argument &nbsp;restricts operation to running jobs. &nbsp;The<\/p>\n<p>return value is 0 unless a jobspec does &nbsp;not &nbsp;specify &nbsp;a &nbsp;valid<\/p>\n<p>job.<\/p>\n<p>\u53ef\u4ee5\u770b\u51fa\uff0c\u6211\u4eec\u53ef\u4ee5\u7528\u5982\u4e0b\u65b9\u5f0f\u6765\u8fbe\u6210\u6211\u4eec\u7684\u76ee\u7684\u3002<\/p>\n<p>\u7075\u6d3b\u8fd0\u7528 CTRL-z<\/p>\n<p>\u5728<\/p>\n<p>\u6211\u4eec\u7684\u65e5\u5e38\u5de5\u4f5c\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u7528 CTRL-z \u6765\u5c06\u5f53\u524d\u8fdb\u7a0b\u6302\u8d77\u5230\u540e\u53f0\u6682\u505c\u8fd0\u884c\uff0c\u6267\u884c\u4e00\u4e9b\u522b\u7684\u64cd\u4f5c\uff0c\u7136\u540e\u518d\u7528 fg \u6765\u5c06\u6302\u8d77\u7684\u8fdb\u7a0b\u91cd\u65b0\u653e\u56de\u524d\u53f0\uff08\u4e5f\u53ef\u7528<\/p>\n<p>bg <\/p>\n<p>\u6765\u5c06\u6302\u8d77\u7684\u8fdb\u7a0b\u653e\u5728\u540e\u53f0\uff09\u7ee7\u7eed\u8fd0\u884c\u3002\u8fd9\u6837\u6211\u4eec\u5c31\u53ef\u4ee5\u5728\u4e00\u4e2a\u7ec8\u7aef\u5185\u7075\u6d3b\u5207\u6362\u8fd0\u884c\u591a\u4e2a\u4efb\u52a1\uff0c\u8fd9\u4e00\u70b9\u5728\u8c03\u8bd5\u4ee3\u7801\u65f6\u5c24\u4e3a\u6709\u7528\u3002\u56e0\u4e3a\u5c06\u4ee3\u7801\u7f16\u8f91\u5668\u6302\u8d77\u5230\u540e\u53f0\u518d\u91cd\u65b0\u653e<\/p>\n<p>\u56de\u65f6\uff0c\u5149\u6807\u5b9a\u4f4d\u4ecd\u7136\u505c\u7559\u5728\u4e0a\u6b21\u6302\u8d77\u65f6\u7684\u4f4d\u7f6e\uff0c\u907f\u514d\u4e86\u91cd\u65b0\u5b9a\u4f4d\u7684\u9ebb\u70e6\u3002<\/p>\n<p>\u7528disown -h jobspec\u6765\u4f7f\u67d0\u4e2a\u4f5c\u4e1a\u5ffd\u7565HUP\u4fe1\u53f7\u3002<\/p>\n<p>\u7528disown -ah \u6765\u4f7f\u6240\u6709\u7684\u4f5c\u4e1a\u90fd\u5ffd\u7565HUP\u4fe1\u53f7\u3002<\/p>\n<p>\u7528disown -rh \u6765\u4f7f\u6b63\u5728\u8fd0\u884c\u7684\u4f5c\u4e1a\u5ffd\u7565HUP\u4fe1\u53f7\u3002<\/p>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5f53\u4f7f\u7528\u8fc7 disown \u4e4b\u540e\uff0c\u4f1a\u5c06\u628a\u76ee\u6807\u4f5c\u4e1a\u4ece\u4f5c\u4e1a\u5217\u8868\u4e2d\u79fb\u9664\uff0c\u6211\u4eec\u5c06\u4e0d\u80fd\u518d\u4f7f\u7528jobs\u6765\u67e5\u770b\u5b83\uff0c\u4f46\u662f\u4f9d\u7136\u80fd\u591f\u7528ps -ef\u67e5\u627e\u5230\u5b83\u3002<\/p>\n<p>\u4f46\u662f\u8fd8\u6709\u4e00\u4e2a\u95ee\u9898\uff0c\u8fd9\u79cd\u65b9\u6cd5\u7684\u64cd\u4f5c\u5bf9\u8c61\u662f\u4f5c\u4e1a\uff0c\u5982\u679c\u6211\u4eec\u5728\u8fd0\u884c\u547d\u4ee4\u65f6\u5728\u7ed3\u5c3e\u52a0\u4e86\u201d&amp;\u201d\u6765\u4f7f\u5b83\u6210\u4e3a\u4e00\u4e2a\u4f5c\u4e1a\u5e76\u5728\u540e\u53f0\u8fd0\u884c\uff0c\u90a3\u4e48\u5c31\u4e07\u4e8b\u5927\u5409\u4e86\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7jobs\u547d\u4ee4\u6765\u5f97\u5230\u6240\u6709\u4f5c\u4e1a\u7684\u5217\u8868\u3002\u4f46\u662f\u5982\u679c\u5e76\u6ca1\u6709\u628a\u5f53\u524d\u547d\u4ee4\u4f5c\u4e3a\u4f5c\u4e1a\u6765\u8fd0\u884c\uff0c\u5982\u4f55\u624d\u80fd\u5f97\u5230\u5b83\u7684\u4f5c\u4e1a\u53f7\u5462\uff1f\u7b54\u6848\u5c31\u662f\u7528 CTRL-z\uff08\u6309\u4f4fCtrl\u952e\u7684\u540c\u65f6\u6309\u4f4fz\u952e\uff09\u4e86\uff01<\/p>\n<p>CTRL-z \u7684\u7528\u9014\u5c31\u662f\u5c06\u5f53\u524d\u8fdb\u7a0b\u6302\u8d77\uff08Suspend\uff09\uff0c\u7136\u540e\u6211\u4eec\u5c31\u53ef\u4ee5\u7528jobs\u547d\u4ee4\u6765\u67e5\u8be2\u5b83\u7684\u4f5c\u4e1a\u53f7\uff0c\u518d\u7528bg jobspec\u6765\u5c06\u5b83\u653e\u5165\u540e\u53f0\u5e76\u7ee7\u7eed\u8fd0\u884c\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5982\u679c\u6302\u8d77\u4f1a\u5f71\u54cd\u5f53\u524d\u8fdb\u7a0b\u7684\u8fd0\u884c\u7ed3\u679c\uff0c\u8bf7\u614e\u7528\u6b64\u65b9\u6cd5\u3002<\/p>\n<p>disown \u793a\u4f8b1\uff08\u5982\u679c\u63d0\u4ea4\u547d\u4ee4\u65f6\u5df2\u7ecf\u7528\u201c&amp;\u201d\u5c06\u547d\u4ee4\u653e\u5165\u540e\u53f0\u8fd0\u884c\uff0c\u5219\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u201cdisown\u201d\uff09<\/p>\n<p># cp -r testLargeFile largeFile &amp;<\/p>\n<\/p>\n<p> 4825<\/p>\n<\/p>\n<p># jobs<\/p>\n<\/p>\n<p>+ &nbsp;Running &nbsp; cp -i -r testLargeFile largeFile &amp;<\/p>\n<\/p>\n<p># disown -h %1<\/p>\n<\/p>\n<p># ps -ef |grep largeFile<\/p>\n<\/p>\n<p>root:46 pts\/:00:00 cp -i -r testLargeFile largeFile<\/p>\n<p>root:46 pts\/:00:00 grep largeFile<\/p>\n<p># logout<\/p>\n<\/p>\n<p>disown \u793a\u4f8b2\uff08\u5982\u679c\u63d0\u4ea4\u547d\u4ee4\u65f6\u672a\u4f7f\u7528\u201c&amp;\u201d\u5c06\u547d\u4ee4\u653e\u5165\u540e\u53f0\u8fd0\u884c\uff0c\u53ef\u4f7f\u7528 CTRL-z \u548c\u201cbg\u201d\u5c06\u5176\u653e\u5165\u540e\u53f0\uff0c\u518d\u4f7f\u7528\u201cdisown\u201d\uff09<\/p>\n<p># cp -r testLargeFile largeFile2<\/p>\n<\/p>\n<p>+ &nbsp;Stopped &nbsp; cp -i -r testLargeFile largeFile2<\/p>\n<\/p>\n<p># bg %1<\/p>\n<\/p>\n<p>+ cp -i -r testLargeFile largeFile2 &amp;<\/p>\n<\/p>\n<p># jobs<\/p>\n<\/p>\n<p>+ &nbsp;Running &nbsp; cp -i -r testLargeFile largeFile2 &amp;<\/p>\n<\/p>\n<p># disown -h %1<\/p>\n<\/p>\n<p># ps -ef |grep largeFile2<\/p>\n<\/p>\n<p>root:04 pts\/:00:00 cp -i -r testLargeFile largeFile2<\/p>\n<p>root:05 pts\/:00:00 grep largeFile2<\/p>\n<p>#<\/p>\n<\/p>\n<p>\u56de\u9875\u9996<\/p>\n<p>screen<\/p>\n<p>\u573a\u666f\uff1a<\/p>\n<p>\u6211\u4eec\u5df2\u7ecf\u77e5\u9053\u4e86\u5982\u4f55\u8ba9\u8fdb\u7a0b\u514d\u53d7 HUP \u4fe1\u53f7\u7684\u5f71\u54cd\uff0c\u4f46\u662f\u5982\u679c\u6709\u5927\u91cf\u8fd9\u79cd\u547d\u4ee4\u9700\u8981\u5728\u7a33\u5b9a\u7684\u540e\u53f0\u91cc\u8fd0\u884c\uff0c\u5982\u4f55\u907f\u514d\u5bf9\u6bcf\u6761\u547d\u4ee4\u90fd\u505a\u8fd9\u6837\u7684\u64cd\u4f5c\u5462\uff1f<\/p>\n<p>\u89e3\u51b3\u65b9\u6cd5\uff1a<\/p>\n<p>\u6b64\u65f6\u6700\u65b9\u4fbf\u7684\u65b9\u6cd5\u5c31\u662f screen&nbsp;<\/p>\n<p>\u4e86\u3002\u7b80\u5355\u7684\u8bf4\uff0cscreen \u63d0\u4f9b\u4e86 ANSI\/VT100 \u7684\u7ec8\u7aef\u6a21\u62df\u5668\uff0c\u4f7f\u5b83\u80fd\u591f\u5728\u4e00\u4e2a\u771f\u5b9e\u7ec8\u7aef\u4e0b\u8fd0\u884c\u591a\u4e2a\u5168\u5c4f\u7684\u4f2a\u7ec8\u7aef\u3002screen&nbsp;<\/p>\n<p>\u7684\u53c2\u6570\u5f88\u591a\uff0c\u5177\u6709\u5f88\u5f3a\u5927\u7684\u529f\u80fd\uff0c\u6211\u4eec\u5728\u6b64\u4ec5\u4ecb\u7ecd\u5176\u5e38\u7528\u529f\u80fd\u4ee5\u53ca\u7b80\u8981\u5206\u6790\u4e00\u4e0b\u4e3a\u4ec0\u4e48\u4f7f\u7528 screen \u80fd\u591f\u907f\u514d HUP \u4fe1\u53f7\u7684\u5f71\u54cd\u3002\u6211\u4eec\u5148\u770b\u4e00\u4e0b&nbsp;<\/p>\n<p>screen \u7684\u5e2e\u52a9\u4fe1\u606f\uff1a<\/p>\n<p>SCREEN(1) &nbsp; SCREEN(1)<\/p>\n<p>NAME<\/p>\n<p>screen \u2013 screen manager with VT100\/ANSI terminal emulation<\/p>\n<p>SYNOPSIS<\/p>\n<p>screen &gt;<\/p>\n<p>screen -r tty&gt;<\/p>\n<\/p>\n<p>screen -r sessionowner\/tty&gt;<\/p>\n<\/p>\n<p>DESCRIPTION<\/p>\n<p>Screen &nbsp;is &nbsp;a &nbsp;full-screen &nbsp;window manager that multiplexes a physical<\/p>\n<p>terminal between several &nbsp;processes &nbsp;(typically &nbsp;interactive &nbsp;shells).<\/p>\n<p>Each &nbsp;virtual &nbsp;terminal provides the functions of a DEC VT100 terminal<\/p>\n<p>and, in addition, several control functions from the &nbsp;ISO(ECMA<\/p>\n<p>48, &nbsp;ANSI &nbsp;X3.64) &nbsp;and ISO 2023 standards (e.g. insert\/delete line and<\/p>\n<p>support for multiple character sets). &nbsp;There is a &nbsp;scrollback &nbsp;history<\/p>\n<p>buffer &nbsp;for &nbsp;each virtual terminal and a copy-and-paste mechani that<\/p>\n<p>allows moving text regions between windows.<\/p>\n<p>\u4f7f\u7528 screen \u5f88\u65b9\u4fbf\uff0c\u6709\u4ee5\u4e0b\u51e0\u4e2a\u5e38\u7528\u9009\u9879\uff1a<\/p>\n<p>\u7528screen -dmS session name\u6765\u5efa\u7acb\u4e00\u4e2a\u5904\u4e8e\u65ad\u5f00\u6a21\u5f0f\u4e0b\u7684\u4f1a\u8bdd\uff08\u5e76\u6307\u5b9a\u5176\u4f1a\u8bdd\u540d\uff09\u3002<\/p>\n<p>\u7528screen -list \u6765\u5217\u51fa\u6240\u6709\u4f1a\u8bdd\u3002<\/p>\n<p>\u7528screen -r session name\u6765\u91cd\u65b0\u8fde\u63a5\u6307\u5b9a\u4f1a\u8bdd\u3002<\/p>\n<p>\u7528\u5feb\u6377\u952eCTRL-a d \u6765\u6682\u65f6\u65ad\u5f00\u5f53\u524d\u4f1a\u8bdd\u3002<\/p>\n<p>screen \u793a\u4f8b<\/p>\n<p># screen -dmS Urumchi<\/p>\n<\/p>\n<p># screen -list<\/p>\n<\/p>\n<p>There is a screen on:<\/p>\n<p>12842.Urumchi &nbsp; (Detached)<\/p>\n<p>1 Socket in \/tmp\/screens\/S-root.<\/p>\n<p># screen -r Urumchi<\/p>\n<\/p>\n<p>\u5f53\u6211\u4eec\u7528\u201c-r\u201d\u8fde\u63a5\u5230 screen \u4f1a\u8bdd\u540e\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u5728\u8fd9\u4e2a\u4f2a\u7ec8\u7aef\u91cc\u9762\u4e3a\u6240\u6b32\u4e3a\uff0c\u518d\u4e5f\u4e0d\u7528\u62c5\u5fc3 HUP \u4fe1\u53f7\u4f1a\u5bf9\u6211\u4eec\u7684\u8fdb\u7a0b\u9020\u6210\u5f71\u54cd\uff0c\u4e5f\u4e0d\u7528\u7ed9\u6bcf\u4e2a\u547d\u4ee4\u524d\u90fd\u52a0\u4e0a\u201cnohup\u201d\u6216\u8005\u201csetsid\u201d\u4e86\u3002\u8fd9\u662f\u4e3a\u4ec0\u4e48\u5462\uff1f\u8ba9\u6211\u6765\u770b\u4e00\u4e0b\u4e0b\u9762\u4e24\u4e2a\u4f8b\u5b50\u5427\u3002<\/p>\n<p>1. \u672a\u4f7f\u7528 screen \u65f6\u65b0\u8fdb\u7a0b\u7684\u8fdb\u7a0b\u6811<\/p>\n<p># ping <\/p>\n<\/p>\n<p>www.google.com<\/p>\n<p> &amp;<\/p>\n<p> 9499<\/p>\n<\/p>\n<p># pstree -H 9499<\/p>\n<\/p>\n<p>init\u2500\u252c\u2500Xvnc<\/p>\n<p>\u251c\u2500acpid<\/p>\n<p>\u251c\u2500atd<\/p>\n<p>\u251c\u25002*<\/p>\n<\/p>\n<p>\u251c\u2500sshd\u2500\u252c\u2500sshd\u2500\u2500\u2500bash\u2500\u2500\u2500pstree<\/p>\n<p>\u2502\u2514\u2500sshd\u2500\u2500\u2500bash\u2500\u2500\u2500ping<\/p>\n<p>\u6211\u4eec\u53ef\u4ee5\u770b\u51fa\uff0c\u672a\u4f7f\u7528 screen \u65f6\u6211\u4eec\u6240\u5904\u7684 bash \u662f sshd \u7684\u5b50\u8fdb\u7a0b\uff0c\u5f53 ssh \u65ad\u5f00\u8fde\u63a5\u65f6\uff0cHUP \u4fe1\u53f7\u81ea\u7136\u4f1a\u5f71\u54cd\u5230\u5b83\u4e0b\u9762\u7684\u6240\u6709\u5b50\u8fdb\u7a0b\uff08\u5305\u62ec\u6211\u4eec\u65b0\u5efa\u7acb\u7684 ping \u8fdb\u7a0b\uff09\u3002<\/p>\n<p>2. \u4f7f\u7528\u4e86 screen \u540e\u65b0\u8fdb\u7a0b\u7684\u8fdb\u7a0b\u6811<\/p>\n<p># screen -r Urumchi<\/p>\n<\/p>\n<p># ping <\/p>\n<\/p>\n<p>www.ibm.com<\/p>\n<p> &amp;<\/p>\n<p> 9488<\/p>\n<\/p>\n<p># pstree -H 9488<\/p>\n<\/p>\n<p>init\u2500\u252c\u2500Xvnc<\/p>\n<p>\u251c\u2500acpid<\/p>\n<p>\u251c\u2500atd<\/p>\n<p>\u251c\u2500screen\u2500\u2500\u2500bash\u2500\u2500\u2500ping<\/p>\n<p>\u251c\u25002*<\/p>\n<\/p>\n<p>\u800c\u4f7f\u7528\u4e86 screen \u540e\u5c31\u4e0d\u540c\u4e86\uff0c\u6b64\u65f6 bash \u662f screen \u7684\u5b50\u8fdb\u7a0b\uff0c\u800c screen \u662f init\uff08PID\u4e3a1\uff09\u7684\u5b50\u8fdb\u7a0b\u3002\u90a3\u4e48\u5f53 ssh \u65ad\u5f00\u8fde\u63a5\u65f6\uff0cHUP \u4fe1\u53f7\u81ea\u7136\u4e0d\u4f1a\u5f71\u54cd\u5230 screen \u4e0b\u9762\u7684\u5b50\u8fdb\u7a0b\u4e86\u3002<\/p>\n<p>\u6302\u65ad\u662f\u6307\uff08SIGHUP\uff09\u4fe1\u53f7\uff0c\u8bf4\u767d\u70b9\u5c31\u662f\u8282\u7701\u8d44\u6e90\u50cf\u58f0\u63a7\u7684\u8def\u706f\u4e00\u6837\uff0c\u79bb\u5f00\u4e45\u4e86\u5c31\u5207\u65ad\u7535\u6e90\u3002<\/p>\n<p> \u6709\u4e9b\u7a0b\u5e8flinux\u4e0b\u7684\u6ca1\u6709\u505a\u76f8\u5e94\u7684\u5b88\u62a4\u8fdb\u7a0b\u5c31\u662f\u7a0b\u5e8f\u540d\u5356\u6838\u540e\u9762\u52a0\u4e2aD\u90a3\u6837\u7684\u8fdb\u7a0b\uff0c\u4fdd\u8bc1\u4e0d\u4f1a\u88ab\u5e86\u558a\u8282\u7701kill\u6389\uff0c\u6240\u4ee5\u5c31\u4f7f\u7528nohup\u514d\u6253\u6270\u65b9\u5f0f\u8fdb\u884c\u8fd0\u884c\u7a0b\u8a89\u914d\u91ce\u5e8f\uff0c&amp;\u540e\u53f0\u8fd0\u884c\u3002<\/p>\n<p> \u8fdc\u7a0b\u8fde\u63a5\u670d\u52a1\u5668\u66f4\u597d\u4f7f\u7528screen\uff0c\u4ffa\u4e0d\u89e3\u91ca<\/p>\n<p>\u5173\u4e8elinux\u4e2d%3e\u4ec0\u4e48\u610f\u601d\u7684\u4ecb\u7ecd\u5230\u6b64\u5c31\u7ed3\u675f\u4e86\uff0c\u4e0d\u77e5\u9053\u4f60\u4ece\u4e2d\u627e\u5230\u4f60\u9700\u8981\u7684\u4fe1\u606f\u4e86\u5417 \uff1f\u5982\u679c\u4f60\u8fd8\u60f3\u4e86\u89e3\u66f4\u591a\u8fd9\u65b9\u9762\u7684\u4fe1\u606f\uff0c\u8bb0\u5f97\u6536\u85cf\u5173\u6ce8\u672c\u7ad9\u3002<\/p>\n<p><a href=\"http:https:\/\/idc.net\/\">\u9999\u6e2f\u670d\u52a1\u5668<\/a>\u9996\u9009\u540e\u6d6a\u4e91\uff0c2H2G\u9996\u670810\u5143\u5f00\u901a\u3002<br \/>\u540e\u6d6a\u4e91\uff08www.IDC.Net\uff09\u63d0\u4f9b\u7b80\u5355\u597d\u7528\uff0c\u4ef7\u683c\u539a\u9053\u7684\u9999\u6e2f\/\u7f8e\u56fd\u4e91\u670d\u52a1\u5668\u548c\u72ec\u7acb\u670d\u52a1\u5668\u3002IDC+ISP+ICP\u8d44\u8d28\u3002ARIN\u548cAPNIC\u4f1a\u5458\u3002\u6210\u719f\u6280\u672f\u56e2\u961f15\u5e74\u884c\u4e1a\u7ecf\u9a8c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728Linux\u7cfb\u7edf\u4e2d\uff0c&gt;\u7b26\u53f7\u5177\u6709\u975e\u5e38\u91cd\u8981\u7684\u4f5c\u7528\uff0c\u88ab\u79f0\u4e3a\u201c\u91cd\u5b9a\u5411\u7b26\u53f7\u201d\u3002\u5728\u5f88\u591a\u573a\u5408\u4e0b\uff0c\u6211\u4eec\u9700\u8981\u5c06\u4e00\u4e2a\u7a0b\u5e8f\u8f93\u51fa [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[34],"tags":[],"class_list":["post-123220","post","type-post","status-publish","format-standard","hentry","category-linux"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/123220","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=123220"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/123220\/revisions"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=123220"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=123220"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=123220"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}