{"id":407,"date":"2021-07-28T17:39:47","date_gmt":"2021-07-28T09:39:47","guid":{"rendered":"https:\/\/egonlin.com\/?p=407"},"modified":"2022-04-26T11:42:09","modified_gmt":"2022-04-26T03:42:09","slug":"%e4%bf%a1%e5%8f%b7%e5%a4%84%e7%90%86","status":"publish","type":"post","link":"https:\/\/egonlin.com\/?p=407","title":{"rendered":"\u4fe1\u53f7\u5904\u7406"},"content":{"rendered":"

\u4fe1\u53f7\u63a7\u5236<\/h1>\n

\u4e00 \u4fe1\u53f7\u8bf4\u660e<\/h2>\n

\u5728\u811a\u672c\u6267\u884c\u8fc7\u7a0b\u4e2d, \u53ef\u80fd\u4f1a\u88ab\u4e00\u4e9b\u952e\u76d8\u64cd\u4f5c\u5feb\u6377\u65b9\u5f0f\u6240\u6253\u65ad, \u5f71\u54cd\u811a\u672c\u8fd0\u884c<\/p>\n

# HUP(1):  1\u3001\u6302\u8d77\u4fe1\u53f7 2\u3001\u5f80\u5f80\u53ef\u4ee5\u8ba9\u8fdb\u7a0b\u91cd\u65b0\u52a0\u8f7d\u914d\u7f6e\n\u672c\u4fe1\u53f7\u5728\u7528\u6237\u7ec8\u7aef\u8fde\u63a5(\u6b63\u5e38\u6216\u975e\u6b63\u5e38)\u7ed3\u675f\u65f6\u53d1\u51fa, \u901a\u5e38\u662f\u5728\u7ec8\u7aef\u7684\u63a7\u5236\u8fdb\u7a0b\u7ed3\u675f\u65f6, \u901a\u77e5\u540c\u4e00session\u5185\u7684\u5404\u4e2a\u4f5c\u4e1a, \u8fd9\u65f6\u5b83\u4eec\u4e0e\u63a7\u5236\u7ec8\u7aef\u4e0d\u518d\u5173\u8054\u3002\n\n\u767b\u5f55Linux\u65f6\uff0c\u7cfb\u7edf\u4f1a\u5206\u914d\u7ed9\u767b\u5f55\u7528\u6237\u4e00\u4e2a\u7ec8\u7aef(Session)\u3002\u5728\u8fd9\u4e2a\u7ec8\u7aef\u8fd0\u884c\u7684\u6240\u6709\u7a0b\u5e8f\uff0c\u5305\u62ec\u524d\u53f0\u8fdb\u7a0b\u7ec4\u548c\u540e\u53f0\u8fdb\u7a0b\u7ec4\uff0c\u4e00\u822c\u90fd \u5c5e\u4e8e\u8fd9\u4e2a Session\u3002\u5f53\u7528\u6237\u9000\u51faLinux\u767b\u5f55\u65f6\uff0c\u524d\u53f0\u8fdb\u7a0b\u7ec4\u548c\u540e\u53f0\u6709\u5bf9\u7ec8\u7aef\u8f93\u51fa\u7684\u8fdb\u7a0b\u5c06\u4f1a\u6536\u5230SIGHUP\u4fe1\u53f7\u3002\u8fd9\u4e2a\u4fe1\u53f7\u7684\u9ed8\u8ba4\u64cd\u4f5c\u4e3a\u7ec8\u6b62\u8fdb\u7a0b\uff0c\u56e0\u6b64\u524d\u53f0\u8fdb \u7a0b\u7ec4\u548c\u540e\u53f0\u6709\u7ec8\u7aef\u8f93\u51fa\u7684\u8fdb\u7a0b\u5c31\u4f1a\u4e2d\u6b62\u3002\u4e0d\u8fc7\uff0c\u53ef\u4ee5\u6355\u83b7\u8fd9\u4e2a\u4fe1\u53f7\uff0c\u6bd4\u5982wget\u80fd\u6355\u83b7SIGHUP\u4fe1\u53f7\uff0c\u5e76\u5ffd\u7565\u5b83\uff0c\u8fd9\u6837\u5c31\u7b97\u9000\u51fa\u4e86Linux\u767b\u5f55\uff0cwget\u4e5f \u80fd\u7ee7\u7eed\u4e0b\u8f7d\u3002\n\n\u6b64\u5916\uff0c\u5bf9\u4e8e\u4e0e\u7ec8\u7aef\u8131\u79bb\u5173\u7cfb\u7684\u5b88\u62a4\u8fdb\u7a0b\uff0c\u8fd9\u4e2a\u4fe1\u53f7\u7528\u4e8e\u901a\u77e5\u5b83\u91cd\u65b0\u8bfb\u53d6\u914d\u7f6e\u6587\u4ef6\u3002\n\n# INT(2):  \u4e2d\u65ad, \u901a\u5e38\u56e0\u4e3a\u6309\u4e0bctrl+c\u800c\u4ea7\u751f\u7684\u4fe1\u53f7\uff0c\u7528\u4e8e\u901a\u77e5\u524d\u53f0\u8fdb\u7a0b\u7ec4\u7ec8\u6b62\u8fdb\u7a0b\u3002\n# QUIT(3): \u9000\u51fa\uff0c\u548cSIGINT\u7c7b\u4f3c, \u4f46\u7531QUIT\u5b57\u7b26(\u901a\u5e38\u662fCtrl-\\)\u6765\u63a7\u5236. \u8fdb\u7a0b\u5728\u56e0\u6536\u5230SIGQUIT\u9000\u51fa\u65f6\u4f1a\u4ea7\u751fcore\u6587\u4ef6, \u5728\u8fd9\u4e2a\u610f\u4e49\u4e0a\u7c7b\u4f3c\u4e8e\u4e00\u4e2a\u7a0b\u5e8f\u9519\u8bef\u4fe1\u53f7\u3002\n\n# TSTP(20): \u505c\u6b62\u8fdb\u884c\u8fd0\u884c,\u901a\u5e38\u56e0\u4e3a\u6309\u4e0bctrl+z\u800c\u4ea7\u751f\u7684\u4fe1\u53f7\n\n# KILL (9)\n\u7528\u6765\u7acb\u5373\u7ed3\u675f\u7a0b\u5e8f\u7684\u8fd0\u884c. \u672c\u4fe1\u53f7\u4e0d\u80fd\u88ab\u963b\u585e\u3001\u5904\u7406\u548c\u5ffd\u7565\u3002\u5982\u679c\u7ba1\u7406\u5458\u53d1\u73b0\u67d0\u4e2a\u8fdb\u7a0b\u7ec8\u6b62\u4e0d\u4e86\uff0c\u53ef\u5c1d\u8bd5\u53d1\u9001\u8fd9\u4e2a\u4fe1\u53f7\u3002\n# TERM(15): \n\u7ec8\u6b62,\u662f\u4e0d\u5e26\u53c2\u6570\u65f6kill\u9ed8\u8ba4\u53d1\u9001\u7684\u4fe1\u53f7\uff0c\u9ed8\u8ba4\u662f\u6740\u6b7b\u8fdb\u7a0b\uff0c\u4e0eSIGKILL\u4e0d\u540c\u7684\u662f\u8be5\u4fe1\u53f7\u53ef\u4ee5\u88ab\u963b\u585e\u548c\u5904\u7406\u3002\u901a\u5e38\u7528TERM\u4fe1\u53f7\u6765\u8981\u6c42\u7a0b\u5e8f\u81ea\u5df1\u6b63\u5e38\u9000\u51fa\uff0c\u5982\u679c\u8fdb\u7a0b\u7ec8\u6b62\u4e0d\u4e86\uff0c\u6211\u4eec\u624d\u4f1a\u5c1d\u8bd5SIGKILL\u3002\n\n# ===============\u4e86\u89e3===============\n# ABRT(6): \u4e2d\u6b62, \u901a\u5e38\u56e0\u67d0\u4e9b\u4e25\u91cd\u9519\u8bef\u4ea7\u751f\u7684\u5f15\u53f7   \n\n# SIGCHLD \n\u5b50\u8fdb\u7a0b\u7ed3\u675f\u65f6, \u7236\u8fdb\u7a0b\u4f1a\u6536\u5230\u8fd9\u4e2a\u4fe1\u53f7\u3002\n\n\u5982\u679c\u7236\u8fdb\u7a0b\u6ca1\u6709\u5904\u7406\u8fd9\u4e2a\u4fe1\u53f7\uff0c\u4e5f\u6ca1\u6709\u7b49\u5f85(wait)\u5b50\u8fdb\u7a0b\uff0c\u5b50\u8fdb\u7a0b\u867d\u7136\u7ec8\u6b62\uff0c\u4f46\u662f\u8fd8\u4f1a\u5728\u5185\u6838\u8fdb\u7a0b\u8868\u4e2d\u5360\u6709\u8868\u9879\uff0c\u8fd9\u65f6\u7684\u5b50\u8fdb\u7a0b\u79f0\u4e3a\u50f5\u5c38 \u8fdb\u7a0b\u3002\u8fd9\u79cd\u60c5 \u51b5\u6211\u4eec\u5e94\u8be5\u907f\u514d(\u7236\u8fdb\u7a0b\u6216\u8005\u5ffd\u7565SIGCHILD\u4fe1\u53f7\uff0c\u6216\u8005\u6355\u6349\u5b83\uff0c\u6216\u8005wait\u5b83\u6d3e\u751f\u7684\u5b50\u8fdb\u7a0b\uff0c\u6216\u8005\u7236\u8fdb\u7a0b\u5148\u7ec8\u6b62\uff0c\u8fd9\u65f6\u5b50\u8fdb\u7a0b\u7684\u7ec8\u6b62\u81ea\u52a8\u7531init\u8fdb\u7a0b \u6765\u63a5\u7ba1)\u3002\n\n# \u66f4\u591a\u8be6\u89c1\uff1aman 7 signal<\/code><\/pre>\n
\u4e8c \u6355\u6349\u4fe1\u53f7<\/h2>\n
\u6211\u4eec\u53ef\u4ee5\u7528trap\u547d\u4ee4\u6355\u6349\u4fe1\u53f7\uff08trap\u547d\u4ee4\u5e76\u4e0d\u80fd\u6355\u83b7\u6240\u6709\u4fe1\u53f7\uff0c\u4f46\u662f\u5e38\u7528\u4fe1\u53f7HUP\u3001INT\u3001QUIT\u3001TERM\u90fd\u662f\u53ef\u4ee5\u6355\u83b7\u7684\uff09\uff0c\u6267\u884c\u6211\u4eec\u89c4\u5b9a\u7684\u64cd\u4f5c<\/p>\n
# \u64cd\u4f5c1\uff1a\u6355\u6349\u4fe1\u53f7\u3001\u6267\u884c\u5f15\u53f7\u5185\u7684\u64cd\u4f5c\ntrap "echo \u5df2\u7ecf\u8bc6\u522b\u4e2d\u65ad\u4fe1\u53f7:ctrl+c" INT\n\n# \u793a\u4f8b2\uff1a\u6355\u6349\u4fe1\u53f7\u3001\u4e0d\u6267\u884c\u4efb\u4f55\u64cd\u4f5c\ntrap "" INT  \n\n# \u793a\u4f8b3\uff1a\u4e5f\u53ef\u4ee5\u540c\u65f6\u6355\u83b7\u591a\u4e2a\u4fe1\u53f7\ntrap "" HUP INT QUIT TSTP<\/code><\/pre>\n
\u4f8b1\uff1a<\/p>\n
[root@egon test]# cat m.sh \n#!\/bin\/bash\n\ntrap "echo \u5df2\u7ecf\u8bc6\u522b\u5230\u4e2d\u65ad\u4fe1\u53f7:ctrl+c" INT\ntrap 'echo \u5df2\u7ecf\u8bc6\u522b\u5230\u4e2d\u65ad\u4fe1\u53f7:ctrl+\\\\' QUIT\ntrap 'echo \u5df2\u7ecf\u8bc6\u522b\u5230\u4e2d\u65ad\u4fe1\u53f7:ctrl+z' TSTP\n\nread -p "\u8bf7\u8f93\u5165\u4f60\u7684\u540d\u5b57: " name\necho "\u4f60\u7684\u540d\u5b57\u662f\uff1a$name"\n[root@egon test]# chmod +x m.sh \n[root@egon test]# .\/m.sh \n\u8bf7\u8f93\u5165\u4f60\u7684\u540d\u5b57: ^C\u5df2\u7ecf\u8bc6\u522b\u5230\u4e2d\u65ad\u4fe1\u53f7:ctrl+c\n^C\u5df2\u7ecf\u8bc6\u522b\u5230\u4e2d\u65ad\u4fe1\u53f7:ctrl+c\n^C\u5df2\u7ecf\u8bc6\u522b\u5230\u4e2d\u65ad\u4fe1\u53f7:ctrl+c\n^\\\u5df2\u7ecf\u8bc6\u522b\u5230\u4e2d\u65ad\u4fe1\u53f7:ctrl+\\\n^\\\u5df2\u7ecf\u8bc6\u522b\u5230\u4e2d\u65ad\u4fe1\u53f7:ctrl+\\\n^Z\u5df2\u7ecf\u8bc6\u522b\u5230\u4e2d\u65ad\u4fe1\u53f7:ctrl+z\n^Z\u5df2\u7ecf\u8bc6\u522b\u5230\u4e2d\u65ad\u4fe1\u53f7:ctrl+z\negon\n\u4f60\u7684\u540d\u5b57\u662f\uff1aegon\n[root@egon test]# <\/code><\/pre>\n
\u4f8b2\uff1a<\/p>\n
#!\/bin\/bash\ntrap "" HUP INT QUIT TSTP  # kill -HUP \u5f53\u524d\u8fdb\u7a0b\u7684pid\uff0c\u4e5f\u65e0\u6cd5\u7ec8\u6b62\u5176\u8fd0\u884c\n\nclear\ni=0\nwhile true\ndo\n    [ $i == 0 ] && i=1 || i=0\n    if [ $i == 0 ];then\n        echo -e "\\033[31m \u7ea2\u706f\u4eae \\033[0m"\n    else\n        echo -e "\\033[32m \u7eff\u706f\u4eae \\033[0m"\n    fi\n    sleep 1\n    clear\ndone<\/code><\/pre>\n
\u53ef\u4ee5\u4f7f\u7528kill -9\u7ec8\u6b62\u4ee5\u4e0a\u8fdb\u7a0b<\/p>\n
\u4e09 \u5173\u4e8eHUP\u4fe1\u53f7<\/h2>\n
\u200b    \u8981\u4e86\u89e3Linux\u7684HUP\u4fe1\u53f7\uff0c\u9700\u8981\u4ecehangup\u8bf4\u8d77<\/p>\n
\u5728 Unix \u7684\u65e9\u671f\u7248\u672c\u4e2d\uff0c\u6bcf\u4e2a\u7ec8\u7aef\u90fd\u4f1a\u901a\u8fc7 modem \u548c\u7cfb\u7edf\u901a\u8baf\u3002\n\u5f53\u7528\u6237 logout \u65f6\uff0cmodem \u5c31\u4f1a\u6302\u65ad\uff08hang up\uff09\u7535\u8bdd\u3002 \n\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 <\/code><\/pre>\n
\u200b    \u7efc\u4e0a\uff0c\u6211\u4eec\u77e5\u9053\uff0c\u5f53\u7528\u6237\u6ce8\u9500\uff08logout\uff09\u6216\u8005\u7f51\u7edc\u65ad\u5f00\u6216\u8005\u7ec8\u7aef\u5173\u95ed(\u6ce8\u610f\u6ce8\u610f\u6ce8\u610f\uff0c\u4e00\u5b9a\u662f\u7ec8\u7aef\u6574\u4f53\u5173\u95ed\uff0c\u4e0d\u662f\u5355\u7eaf\u7684exit)\u65f6\uff0c\u7ec8\u7aef\u90fd\u4f1a\u6536\u5230Linux HUP\u4fe1\u53f7\uff08hangup\uff09\u4fe1\u53f7\uff0c\u7136\u540e\u7ec8\u7aef\u5728\u7ed3\u675f\u524d\u4f1a\u5173\u95ed\u5176\u6240\u6709\u5b50\u8fdb\u7a0b\u3002<\/p>\n
\u200b    \u5982\u679c\u6211\u4eec\u60f3\u8ba9\u6211\u4eec\u7684\u8fdb\u7a0b\u5728\u540e\u53f0\u4e00\u76f4\u8fd0\u884c\uff0c\u4e0d\u8981\u56e0\u4e3a\u7528\u6237\u6ce8\u9500\uff08logout\uff09\u6216\u8005\u7f51\u7edc\u65ad\u5f00\u6216\u8005\u7ec8\u7aef\u5173\u95ed\u800c\u4e00\u8d77\u88ab\u5e72\u6389\uff0c\u90a3\u4e48\u6211\u4eec\u6709\u4e24\u79cd\u89e3\u51b3\u65b9\u6848<\/p>\n
    \n
  • \u65b9\u68481\uff1a\u8ba9\u8fdb\u7a0b\u5ffd\u7565Linux HUP\u4fe1\u53f7<\/li>\n
  • \u65b9\u68482\uff1a\u8ba9\u8fdb\u7a0b\u8fd0\u884c\u5728\u65b0\u7684\u4f1a\u8bdd\u91cc\uff0c\u4ece\u800c\u6210\u4e3a\u4e0d\u5c5e\u4e8e\u6b64\u7ec8\u7aef\u7684\u5b50\u8fdb\u7a0b\uff0c\u5c31\u4e0d\u4f1a\u5728\u5f53\u524d\u7ec8\u7aef\u6302\u6389\u7684\u60c5\u51b5\u4e0b\u4e00\u8d77\u88ab\u5e26\u8d70\u3002<\/li>\n<\/ul>\n
    3.3.1 nohup\u547d\u4ee4<\/h4>\n
    \u200b    \u9488\u5bf9\u65b9\u68481\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528nohup\u547d\u4ee4\uff0cnohup \u7684\u7528\u9014\u5c31\u662f\u8ba9\u63d0\u4ea4\u7684\u547d\u4ee4\u5ffd\u7565 hangup \u4fe1\u53f7\uff0c\u8be5\u547d\u4ee4\u901a\u5e38\u4e0e&\u7b26\u53f7\u4e00\u8d77\u4f7f\u7528<\/p>\n
    nohup \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\u4f46\u662f nohup \u547d\u4ee4\u4f1a\u4ece\u7ec8\u7aef\u89e3\u9664\u8fdb\u7a0b\u7684\u5173\u8054\uff0c\u8fdb\u7a0b\u4f1a\u4e22\u6389STDOUT\uff0cSTDERR\u7684\u94fe\u63a5\u3002\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"&"\u6765\u5c06\u547d\u4ee4\u540c\u65f6\u653e\u5165\u540e\u53f0\u8fd0\u884c\uff0c\u4e5f\u53ef\u7528">filename 2>&1"\u6765\u66f4\u6539\u7f3a\u7701\u7684\u91cd\u5b9a\u5411\u6587\u4ef6\u540d\u3002<\/code><\/pre>\n
    \u200b    \u793a\u4f8b<\/p>\n
    \"\"<\/div>
    \n
    \"\"<\/div>
    \n
    \"\"<\/div><\/p>\n
    3.3.2 setsid\u547d\u4ee4<\/h4>\n
    \u200b     \u9488\u5bf9\u65b9\u68481\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u7528setsid\u547d\u4ee4\u5b9e\u73b0\uff0c\u539f\u7406\u4e0e3.1\u662f\u4e00\u6837\u7684\uff0csetid\u662f\u76f4\u63a5\u5c06\u8fdb\u7a0b\u7684\u7236pid\u8bbe\u7f6e\u62101\uff0c\u5373\u8ba9\u8fd0\u884c\u7684\u8fdb\u7a0b\u5f52\u5c5e\u4e8einit\u7684\u5b50\u8fdb\u7a0b\uff0c\u90a3\u4e48\u9664\u975einit\u7ed3\u675f\uff0c\u8be5\u5b50\u8fdb\u7a0b\u624d\u4f1a\u7ed3\u675f\uff0c\u5f53\u524d\u8fdb\u7a0b\u6240\u5728\u7684\u7ec8\u7aef\u7ed3\u675f\u540e\u5e76\u4e0d\u4f1a\u5f71\u54cd\u8fdb\u7a0b\u7684\u8fd0\u884c<\/p>\n
    # 1\u3001\u5728\u7ec8\u7aef2\u4e2d\u6267\u884c\u547d\u4ee4\n[root@egon ~]# setsid ping www.baidu.com  # \u4e5f\u53ef\u4ee5\u5728\u540e\u9762\u52a0&\u7b26\u53f7\n\n# 2\u3001\u5173\u95ed\u7ec8\u7aef2\n\n# 3\u3001\u5728\u7ec8\u7aef1\u4e2d\u67e5\u770b\n[root@egon ~]# ps -ef |grep [p]ing\nroot     102335      1  0 17:53 ?        00:00:00 ping www.baidu.com<\/code><\/pre>\n
    3.3.3 \u5728\u5b50shell\u4e2d\u63d0\u4ea4\u4efb\u52a1<\/h4>\n
    # 1\u3001\u5728\u7ec8\u7aef2\u4e2d\u6267\u884c\u547d\u4ee4\n[root@egon ~]# (ping www.baidu.com &)  # \u63d0\u4ea4\u7684\u4f5c\u4e1a\u5e76\u4e0d\u5728\u4f5c\u4e1a\u5217\u8868\u4e2d\n\n# 2\u3001\u5173\u95ed\u7ec8\u7aef2\n\n# 3\u3001\u5728\u7ec8\u7aef1\u4e2d\u67e5\u770b\n[root@egon ~]# ps -ef |grep [p]ing\nroot     102361      1  0 17:55 ?        00:00:00 ping www.baidu.com\n\n\u53ef\u4ee5\u770b\u5230\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\u7684Linux HUP\u4fe1\u53f7\u7684\u5f71\u54cd\u4e86\u3002<\/code><\/pre>\n
    3.3.4 screen\u547d\u4ee4<\/h4>\n
    # 1\u3001\u5b89\u88c5\n[root@egon ~]# yum install screen -y\n\n# 2\u3001\u8fd0\u884c\u547d\u4ee4\n\u65b9\u5f0f\u4e00\uff1a\u5f00\u542f\u4e00\u4e2a\u7a97\u53e3\u5e76\u7528-S\u6307\u5b9a\u7a97\u53e3\u540d\uff0c\u4e5f\u53ef\u4ee5\u4e0d\u6307\u5b9a\n[root@egon ~]# screen -S egon_dsb \n'''\nScreen\u5c06\u521b\u5efa\u4e00\u4e2a\u6267\u884cshell\u7684\u5168\u5c4f\u7a97\u53e3\u3002\u4f60\u53ef\u4ee5\u6267\u884c\u4efb\u610fshell\u7a0b\u5e8f\uff0c\u5c31\u50cf\u5728ssh\u7a97\u53e3\u4e2d\u90a3\u6837\u3002\n\u5728\u8be5\u7a97\u53e3\u4e2d\u952e\u5165exit\u5219\u9000\u51fa\u8be5\u7a97\u53e3\uff0c\u5982\u679c\u6b64\u65f6\uff0c\u8fd9\u662f\u8be5screen\u4f1a\u8bdd\u7684\u552f\u4e00\u7a97\u53e3\uff0c\u8be5screen\u4f1a\u8bdd\u9000\u51fa\uff0c\u5426\u5219screen\u81ea\u52a8\u5207\u6362\u5230\u524d\u4e00\u4e2a\u7a97\u53e3\u3002\n'''\n\n\u65b9\u5f0f\u4e8c\uff1aScreen\u547d\u4ee4\u540e\u8ddf\u4f60\u8981\u6267\u884c\u7684\u7a0b\u5e8f\n[root@egon ~]# screen vim test.txt\n'''\nScreen\u521b\u5efa\u4e00\u4e2a\u6267\u884cvim test.txt\u7684\u5355\u7a97\u53e3\u4f1a\u8bdd\uff0c\u9000\u51favim\u5c06\u9000\u51fa\u8be5\u7a97\u53e3\/\u4f1a\u8bdd\u3002\n'''\n\n# 3\u3001\u539f\u7406\u5206\u6790\nscreen\u7a0b\u5e8f\u4f1a\u5e2e\u6211\u4eec\u7ba1\u7406\u8fd0\u884c\u7684\u547d\u4ee4\uff0c\u9000\u51fascreen\uff0c\u6211\u4eec\u7684\u547d\u4ee4\u8fd8\u4f1a\u7ee7\u7eed\u8fd0\u884c\uff0c\u82e5\u5173\u95edscreen\u6240\u5728\u7684\u7ec8\u7aef\uff0c\u5219screen\u7a0b\u5e8f\u7684ppid\u53d8\u4e3a1\uff0c\u6240\u4ee5screen\u4e0d\u4f1a\u6b7b\u6389\uff0c\u5bf9\u5e94\u7740\u5b83\u5e2e\u6211\u4eec\u7ba1\u7406\u7684\u547d\u4ee4\u4e5f\u4e0d\u4f1a\u9000\u51fa\n\u6d4b\u8bd5\u7565\n\n# 4\uff1a\u91cd\u65b0\u8fde\u63a5\u4f1a\u8bdd\n\u5728\u7ec8\u7aef1\u4e2d\u8fd0\u884c\n[root@egon ~]# screen\n[root@egon ~]# n=1;while true;do echo $n;sleep 1;((n++));done\n\n[root@egon ~]# \u6309\u4e0bctrl+a\uff0c\u7136\u540e\u518d\u6309\u4e0bctrl+d\uff0c\u6ce8\u610f\u8981\u8fde\u8d2f\uff0c\u624b\u522b\u54c6\u55e6,\n\n[root@egon ~]# \u6b64\u65f6\u53ef\u4ee5\u5173\u95ed\u6574\u4e2a\u7ec8\u7aef\uff0c\u6211\u4eec\u7684\u7a0b\u5e8f\u5e76\u4e0d\u4f1a\u7ed3\u675f\n\n\u6253\u5f00\u4e00\u4e2a\u65b0\u7684\u7ec8\u7aef\n[root@egon ~]# screen -ls\nThere is a screen on:\n    109125.pts-0.egon   (Detached)\n1 Socket in \/var\/run\/screen\/S-root.\n\n[root@egon ~]# screen -r 109125  # \u4f1a\u7ee7\u7eed\u8fd0\u884c\n[root@egon ~]# \n\n\u6ce8\u610f\uff1a\u5982\u679c\u6211\u4eec\u521a\u5f00\u59cb\u5df2\u7ecf\u7528screen -S xxx\u6307\u5b9a\u4e86\u540d\u5b57\uff0c\u90a3\u4e48\u6211\u4eec\u5176\u5b9e\u53ef\u4ee5\u76f4\u63a5\nscreen -r xxx \uff0c\u5c31\u65e0\u987b\u53bb\u627e\u8fdb\u7a0bid\u4e86<\/code><\/pre>\n
    \u8fdc\u7a0b\u6f14\u793a<\/p>\n
    # \u5728\u7ec8\u7aef1\uff1a\n[root@egon ~]# screen -S egon_av\n\n# \u5f00\u542f\u4e00\u4e2a\u65b0\u7684\u7ec8\u7aef\uff0c\u5728\u8be5\u7ec8\u7aef\u6267\u884c\u7684\u547d\u4ee4\uff0c\u7ec8\u7aef1\u4f1a\u540c\u6b65\u663e\u793a\n[root@egon ~]# screen -x egon_av<\/code><\/pre>\n
    \u56db \u50f5\u5c38\u8fdb\u7a0b\u4e0e\u5b64\u513f\u8fdb\u7a0b<\/h2>\n
    <\/p>
    <\/div>
    \u67e5\u770b\u66f4\u591a<\/h2>
    \u8054\u7cfb\u7ba1\u7406\u5458\u5fae\u4fe1tutu19192010\uff0c\u6ce8\u518c\u8d26\u53f7<\/p>\n<\/div>
    <\/div>
    <\/td><\/tr>
    <\/td><\/tr><\/tbody><\/table>
    		<\/td><\/tr><\/tbody><\/table><\/form>
    Register<\/a><\/div>
    Forgotten username or password?<\/a><\/div>
    <\/div><\/div><\/div>
    <\/div>","protected":false},"excerpt":{"rendered":"
    \u4fe1\u53f7\u63a7\u5236 \u4e00 \u4fe1\u53f7\u8bf4\u660e \u5728\u811a\u672c\u6267\u884c\u8fc7\u7a0b\u4e2d, \u53ef\u80fd\u4f1a\u88ab\u4e00\u4e9b\u952e\u76d8\u64cd\u4f5c\u5feb\u6377\u65b9\u5f0f\u6240\u6253\u65ad, \u5f71\u54cd\u811a\u672c\u8fd0\u884c # HUP(1 […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[68],"tags":[21,19,75,22,20],"_links":{"self":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/407"}],"collection":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=407"}],"version-history":[{"count":0,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/407\/revisions"}],"wp:attachment":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=407"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=407"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=407"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}