{"id":143,"date":"2007-04-17T14:41:07","date_gmt":"2007-04-17T14:41:07","guid":{"rendered":""},"modified":"2007-04-17T14:41:07","modified_gmt":"2007-04-17T14:41:07","slug":"143","status":"publish","type":"post","link":"https:\/\/3v.org.cn\/?p=143","title":{"rendered":"linux\u547d\u4ee4\u5927\u5168(4)"},"content":{"rendered":"

\u6307\u4ee4\uff1amesg
\u4f7f\u7528\u6743\u9650 : \u6240\u6709\u4f7f\u7528\u8005
\u4f7f\u7528\u65b9\u5f0f : mesg [y|n]
\u8bf4\u660e \uff1a \u51b3\u5b9a\u662f\u5426\u5141\u8bb8\u5176\u4ed6\u4eba\u4f20\u8baf\u606f\u5230\u81ea\u5df1\u7684\u7ec8\u7aef\u673a\u4ecb\u9762\u628a\u8ba1 \ue4cd
y : \u5141\u8bb8\u8baf\u606f\u4f20\u5230\u7ec8\u7aef\u673a\u4ecb\u9762\u4e0a\u3002
n : \u4e0d\u5141\u8bb8\u8baf\u606f\u4f20\u5230\u7ec8\u7aef\u673a\u4ecb\u9762\u4e0a \u3002
\u5982\u679c\u6ca1\u6709\u8bbe\u5b9a\uff0c\u5219\u8baf\u606f\u4f20\u9012\u4e0e\u5426\u5219\u7531\u7ec8\u7aef\u673a\u754c\u9762\u76ee\u524d\u72b6\u6001\u800c\u5b9a\u3002
\u4f8b\u5b50 :
\u6539\u53d8\u76ee\u524d\u8baf\u606f\u8bbe\u5b9a\uff0c\u6539\u6210\u4e0d\u5141\u8bb8\u8baf\u606f\u4f20\u5230\u7ec8\u7aef\u673a\u4ecb\u9762\u4e0a :
mesg n <\/p>\n

\u4e0e mesg \u76f8\u5173\u7684\u6307\u4ee4\u6709\uff1a talk\uff0cwrite\uff0cwall\u3002 <\/p>\n

\u540d\u79f0\uff1a\/etc\/aliases
\u4f7f\u7528\u6743\u9650\uff1a\u7cfb\u7edf\u7ba1\u7406\u8005
\u4f7f\u7528\u65b9\u5f0f\uff1a newaliases
\u8bf4\u660e\uff1a
sendmail \u4f1a\u4f7f\u7528\u4e00\u4e2a\u5728 \/etc\/aliases \u4e2d\u7684\u6863\u6848\u505a\u4f7f\u7528\u8005\u540d\u79f0\u8f6c\u6362\u7684\u52a8\u4f5c\u3002\u5f53 sendmail \u6536\u5230\u4e00\u4e2a\u8981\u9001\u7ed9 xxx \u7684\u4fe1\u65f6\uff0c\u5b83\u4f1a\u4f9d\u636e aliases\u6863\u7684\u5185\u5bb9\u9001\u7ed9\u53e6\u4e00\u4e2a\u4f7f\u7528\u8005\u3002\u8fd9\u4e2a\u529f\u80fd\u53ef\u4ee5\u521b\u9020\u4e00\u4e2a\u53ea\u6709\u5728\u4fe1\u4ef6\u7cfb\u7edf\u5185\u624d\u6709\u6548\u7684\u4f7f\u7528\u8005\u3002\u4f8b\u5982 mailing list \u5c31\u4f1a\u7528\u5230\u8fd9\u4e2a\u529f\u80fd\uff0c\u5728 mailinglist \u4e2d\uff0c\u6211\u4eec\u53ef\u80fd\u4f1a\u521b\u9020\u4e00\u4e2a\u53eb redlinux@link.ece.uci.edu \u7684 mailinglist\uff0c\u4f46\u5b9e\u9645\u4e0a\u5e76\u6ca1\u6709\u4e00\u4e2a\u53eb redlinux \u7684\u4f7f\u7528\u8005\u3002\u5b9e\u9645 aliases \u6863\u7684\u5185\u5bb9\u662f\u5c06\u9001\u7ed9\u8fd9\u4e2a\u4f7f\u7528\u8005\u7684\u4fe1\u90fd\u6536\u7ed9 mailing list \u5904\u7406\u7a0b\u5f0f\u8d1f\u8d23\u5206\u9001\u7684\u5de5\u4f5c\u3002
\/etc\/aliases \u662f\u4e00\u4e2a\u6587\u5b57\u6a21\u5f0f\u7684\u6863\u6848\uff0csendmail \u9700\u8981\u4e00\u4e2a\u4e8c\u8fdb\u4f4d\u683c\u5f0f\u7684 \/etc\/aliases.db\u3002newaliases \u7684\u529f\u80fd\u4f20\u662f\u5c06 \/etc\/aliases \u8f6c\u6362\u6210\u4e00\u4e2a sendmail \u6240\u80fd\u4e86\u89e3\u7684\u8d44\u6599\u5e93\u3002
\u53c2\u6570\uff1a\u6ca1\u6709\u4efb\u4f55\u53c2\u6570\u3002 \u8303\u4f8b\uff1a
# newaliases
\u4e0b\u9762\u547d\u4ee4\u4f1a\u505a\u76f8\u540c\u7684\u4e8b\uff0c
# sendmail -bi
\u76f8\u5173\u547d\u4ee4:
mail, mailq, newaliases, sendmail<\/p>\n

\u540d\u79f0 : talk
\u4f7f\u7528\u6743\u9650 : \u6240\u6709\u4f7f\u7528\u8005
\u4f7f\u7528\u65b9\u5f0f :
talk person [ttyname]
\u8bf4\u660e : \u4e0e\u5176\u4ed6\u4f7f\u7528\u8005\u5bf9\u8c08
\u628a\u8ba1 :
person : \u9884\u5907\u5bf9\u8c08\u7684\u4f7f\u7528\u8005\u5e10\u53f7\uff0c\u5982\u679c\u8be5\u4f7f\u7528\u8005\u5728\u5176\u4ed6\u673a\u5668\u4e0a\uff0c\u5219\u53ef\u8f93\u5165 person@machine.name
ttyname : \u5982\u679c\u4f7f\u7528\u8005\u540c\u65f6\u6709\u4e24\u4e2a\u4ee5\u4e0a\u7684 tty \u8fde\u7ebf\uff0c\u53ef\u4ee5\u81ea\u884c\u9009\u62e9\u5408\u9002\u7684 tty \u4f20\u8baf\u606f
\u4f8b\u5b50.1 :
\u4e0e\u73b0\u5728\u673a\u5668\u4e0a\u7684\u4f7f\u7528\u8005Rollaend\u5bf9\u8c08\uff0c\u6b64\u65f6 Rollaend \u53ea\u6709\u4e00\u4e2a\u8fde\u7ebf :
talk Rollaend
\u63a5\u4e0b\u6765\u5c31\u662f\u7b49Rollaend\u56de\u5e94\uff0c\u82e5Rollaend\u63a5\u53d7\uff0c\u5219Rollaend\u8f93\u5165 `talk jzlee`\u5373\u53ef\u5f00\u59cb\u5bf9\u8c08\uff0c\u7ed3\u675f\u8bf7\u6309 ctrl+c
\u4f8b\u5b50.2 :\u4e0elinuxfab.cx\u4e0a\u7684\u4f7f\u7528\u8005Rollaend\u5bf9\u8c08\uff0c\u4f7f\u7528pts\/2\u6765\u5bf9\u8c08 :
talk Rollaend@linuxfab.cx pts\/2 <\/p>\n

\u63a5\u4e0b\u6765\u5c31\u662f\u7b49Rollaend\u56de\u5e94\uff0c\u82e5Rollaend\u63a5\u53d7\uff0c\u5219Rollaend\u8f93\u5165 `talk jzlee@jzlee.home`\u5373\u53ef\u5f00\u59cb\u5bf9\u8c08\uff0c\u7ed3\u675f\u8bf7\u6309 ctrl+c
\u6ce8\u610f : \u82e5\u8424\u5e55\u7684\u5b57\u4f1a\u51fa\u73b0\u4e0d\u6b63\u5e38\u7684\u5b57\u5143\uff0c\u8bd5\u7740\u6309 ctrl+l \u66f4\u65b0\u8424\u5e55\u753b\u9762\u3002<\/p>\n

\u540d\u79f0 : wall
\u4f7f\u7528\u6743\u9650 : \u6240\u6709\u4f7f\u7528\u8005
\u4f7f\u7528\u65b9\u5f0f :
wall [ message ]
\u4f7f\u7528\u8bf4\u660e\uff1a
wall \u4f1a\u5c06\u8baf\u606f\u4f20\u7ed9\u6bcf\u4e00\u4e2a mesg \u8bbe\u5b9a\u4e3a yes \u7684\u4e0a\u7ebf\u4f7f\u7528\u8005\u3002\u5f53\u4f7f\u7528\u7ec8\u7aef\u673a\u4ecb\u9762\u505a\u4e3a\u6807\u51c6\u4f20\u5165\u65f6, \u8baf\u606f\u7ed3\u675f\u65f6\u9700\u52a0\u4e0a EOF (\u901a\u5e38\u7528 Ctrl+D)\ue4c9
\u4f8b\u5b50 :
\u4f20\u8baf\u606f”hi” \u7ed9\u6bcf\u4e00\u4e2a\u4f7f\u7528\u8005 :
wall hi<\/p>\n

\u540d\u79f0 : write
\u4f7f\u7528\u6743\u9650 : \u6240\u6709\u4f7f\u7528\u8005
\u4f7f\u7528\u65b9\u5f0f :
write user [ttyname]
\u8bf4\u660e : \u4f20\u8baf\u606f\u7ed9\u5176\u4ed6\u4f7f\u7528\u8005
\u628a\u8ba1 :
user : \u9884\u5907\u4f20\u8baf\u606f\u7684\u4f7f\u7528\u8005\u5e10\u53f7
ttyname : \u5982\u679c\u4f7f\u7528\u8005\u540c\u65f6\u6709\u4e24\u4e2a\u4ee5\u4e0a\u7684 tty \u8fde\u7ebf\uff0c\u53ef\u4ee5\u81ea\u884c\u9009\u62e9\u5408\u9002\u7684 tty \u4f20\u8baf\u606f
\u4f8b\u5b50.1 :
\u4f20\u8baf\u606f\u7ed9 Rollaend\uff0c\u6b64\u65f6 Rollaend \u53ea\u6709\u4e00\u4e2a\u8fde\u7ebf :
write Rollaend <\/p>\n

\u63a5\u4e0b\u6765\u5c31\u662f\u5c06\u8baf\u606f\u6253\u4e0a\u53bb\uff0c\u7ed3\u675f\u8bf7\u6309 ctrl+c
\u4f8b\u5b50.2 :\u4f20\u8baf\u606f\u7ed9 Rollaend\uff0cRollaend \u7684\u8fde\u7ebf\u6709 pts\/2\uff0cpts\/3 :
write Rollaend pts\/2 <\/p>\n

\u63a5\u4e0b\u6765\u5c31\u662f\u5c06\u8baf\u606f\u6253\u4e0a\u53bb\uff0c\u7ed3\u675f\u8bf7\u6309 ctrl+c
\u6ce8\u610f : \u82e5\u5bf9\u65b9\u8bbe\u5b9a mesg n\uff0c\u5219\u6b64\u65f6\u8baf\u5e2d\u5c06\u65e0\u6cd5\u4f20\u7ed9\u5bf9\u65b9<\/p>\n

\u540d\u79f0\uff1akill
\u4f7f\u7528\u6743\u9650\uff1a\u6240\u6709\u4f7f\u7528\u8005
\u4f7f\u7528\u65b9\u5f0f\uff1a
kill [ -s signal | -p ] [ -a ] pid …
kill -l [ signal ]
\u8bf4\u660e\uff1akill \u9001\u51fa\u4e00\u4e2a\u7279\u5b9a\u7684\u4fe1\u53f7 (signal) \u7ed9\u884c\u7a0b id \u4e3a pid \u7684\u884c\u7a0b\u6839\u636e\u8be5\u4fe1\u53f7\u800c\u505a\u7279\u5b9a\u7684\u52a8\u4f5c, \u82e5\u6ca1\u6709\u6307\u5b9a, \u9884\u8bbe\u662f\u9001\u51fa\u7ec8\u6b62 (TERM) \u7684\u4fe1\u53f7
\u628a\u8ba1\ue4cd
-s (signal) : \u5176\u4e2d\u53ef\u7528\u7684\u8baf\u53f7\u6709 HUP (1), KILL (9), TERM (15), \u5206\u522b\u4ee3\u8868\u7740\u91cd\u8dd1, \u780d\u6389, \u7ed3\u675f; \u8be6\u7ec6\u7684\u4fe1\u53f7\u53ef\u4ee5\u7528 kill -l
-p : \u5370\u51fa pid , \u5e76\u4e0d\u9001\u51fa\u4fe1\u53f7
-l (signal) : \u5217\u51fa\u6240\u6709\u53ef\u7528\u7684\u4fe1\u53f7\u540d\u79f0
\u8303\u4f8b\uff1a
\u5c06 pid \u4e3a 323 \u7684\u884c\u7a0b\u780d\u6389 (kill) :
kill -9 323
\u5c06 pid \u4e3a 456 \u7684\u884c\u7a0b\u91cd\u8dd1 (restart) :
kill -HUP 456<\/p>\n

\u540d\u79f0\uff1anice
\u4f7f\u7528\u6743\u9650\uff1a\u6240\u6709\u4f7f\u7528\u8005
\u4f7f\u7528\u65b9\u5f0f\uff1anice [-n adjustment] [-adjustment] [–adjustment=adjustment] [–help] [–version] [command [arg…]
\u8bf4\u660e\uff1a\u4ee5\u66f4\u6539\u8fc7\u7684\u4f18\u5148\u5e8f\u6765\u6267\u884c\u7a0b\u5f0f, \u5982\u679c\u672a\u6307\u5b9a\u7a0b\u5f0f, \u5219\u4f1a\u5370\u51fa\u76ee\u524d\u7684\u6392\u7a0b\u4f18\u5148\u5e8f, \u5185\u5b9a\u7684 adjustment \u4e3a 10, \u8303\u56f4\u4e3a -20 (\u6700\u9ad8\u4f18\u5148\u5e8f) \u5230 19 (\u6700\u4f4e\u4f18\u5148\u5e8f)
\u628a\u8ba1\ue4cd
-n adjustment, -adjustment, –adjustment=adjustment \u7686\u4e3a\u5c06\u8be5\u539f\u6709\u4f18\u5148\u5e8f\u7684\u589e\u52a0 adjustment
–help \u663e\u793a\u6c42\u52a9\u8baf\u606f
–version \u663e\u793a\u7248\u672c\u8d44\u8baf
\u8303\u4f8b\uff1a
\u5c06 ls \u7684\u4f18\u5148\u5e8f\u52a0 1 \u5e76\u6267\u884c :
nice -n 1 ls
\u5c06 ls \u7684\u4f18\u5148\u5e8f\u52a0 10 \u5e76\u6267\u884c :
nice ls\u5c06 ls \u7684\u4f18\u5148\u5e8f\u52a0 10 \u5e76\u6267\u884c
\u6ce8\u610f : \u4f18\u5148\u5e8f (priority) \u4e3a\u4f5c\u4e1a\u7cfb\u7edf\u7528\u6765\u51b3\u5b9a CPU \u5206\u914d\u7684\u53c2\u6570\uff0cLinux \u4f7f\u7528\u300e\u56de\u5408\u5236(round-robin)\u300f\u7684\u6f14\u7b97\u6cd5\u6765\u505a CPU \u6392\u7a0b\uff0c\u4f18\u5148\u5e8f\u8d8a\u9ad8\uff0c\u6240\u53ef\u80fd\u83b7\u5f97\u7684 CPU\u65f6\u95f4\u5c31\u8d8a\u591a\u3002<\/p>\n

\u540d\u79f0\uff1aps
\u4f7f\u7528\u6743\u9650\uff1a\u6240\u6709\u4f7f\u7528\u8005
\u4f7f\u7528\u65b9\u5f0f\uff1aps [options] [–help]
\u8bf4\u660e\uff1a\u663e\u793a\u77ac\u95f4\u884c\u7a0b (process) \u7684\u52a8\u6001
\u53c2\u6570\uff1a
ps \u7684\u53c2\u6570\u975e\u5e38\u591a, \u5728\u6b64\u4ec5\u5217\u51fa\u51e0\u4e2a\u5e38\u7528\u7684\u53c2\u6570\u5e76\u5927\u7565\u4ecb\u7ecd\u542b\u4e49
-A \u5217\u51fa\u6240\u6709\u7684\u884c\u7a0b
-w \u663e\u793a\u52a0\u5bbd\u53ef\u4ee5\u663e\u793a\u8f83\u591a\u7684\u8d44\u8baf
-au \u663e\u793a\u8f83\u8be6\u7ec6\u7684\u8d44\u8baf
-aux \u663e\u793a\u6240\u6709\u5305\u542b\u5176\u4ed6\u4f7f\u7528\u8005\u7684\u884c\u7a0b
au(x) \u8f93\u51fa\u683c\u5f0f :
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
USER: \u884c\u7a0b\u62e5\u6709\u8005
PID: pid
%CPU: \u5360\u7528\u7684 CPU \u4f7f\u7528\u7387
%MEM: \u5360\u7528\u7684\u8bb0\u5fc6\u4f53\u4f7f\u7528\u7387
VSZ: \u5360\u7528\u7684\u865a\u62df\u8bb0\u5fc6\u4f53\u5927\u5c0f
RSS: \u5360\u7528\u7684\u8bb0\u5fc6\u4f53\u5927\u5c0f
TTY: \u7ec8\u7aef\u7684\u6b21\u8981\u88c5\u7f6e\u53f7\u7801 (minor device number of tty)
STAT: \u8be5\u884c\u7a0b\u7684\u72b6\u6001:
D: \u4e0d\u53ef\u4e2d\u65ad\u7684\u9759\u6b62 (\u901a\u60b8\u25a1\u25a1\u7f1cb\u8fdb\u884c I\/O \u52a8\u4f5c)
R: \u6b63\u5728\u6267\u884c\u4e2d
S: \u9759\u6b62\u72b6\u6001
T: \u6682\u505c\u6267\u884c
Z: \u4e0d\u5b58\u5728\u4f46\u6682\u65f6\u65e0\u6cd5\u6d88\u9664
W: \u6ca1\u6709\u8db3\u591f\u7684\u8bb0\u5fc6\u4f53\u5206\u9875\u53ef\u5206\u914d
<: \u9ad8\u4f18\u5148\u5e8f\u7684\u884c\u7a0b
N: \u4f4e\u4f18\u5148\u5e8f\u7684\u884c\u7a0b
L: \u6709\u8bb0\u5fc6\u4f53\u5206\u9875\u5206\u914d\u5e76\u9501\u5728\u8bb0\u5fc6\u4f53\u5185 (\u5373\u65f6\u7cfb\u7edf\u6216\u6371A I\/O)
START: \u884c\u7a0b\u5f00\u59cb\u65f6\u95f4
TIME: \u6267\u884c\u7684\u65f6\u95f4
COMMAND:\u6240\u6267\u884c\u7684\u6307\u4ee4
\u8303\u4f8b\uff1a
ps
PID TTY TIME CMD
2791 ttyp0 00:00:00 tcsh
3092 ttyp0 00:00:00 ps
% ps -A
PID TTY TIME CMD
1 ? 00:00:03 init
2 ? 00:00:00 kflushd
3 ? 00:00:00 kpiod
4 ? 00:00:00 kswapd
5 ? 00:00:00 mdrecoveryd
…….
% ps -aux
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 1 0.0 0.7 1096 472 ? S Sep10 0:03 init [3]
root 2 0.0 0.0 0 0 ? SW Sep10 0:00 [kflushd]
root 3 0.0 0.0 0 0 ? SW Sep10 0:00 [kpiod]
root 4 0.0 0.0 0 0 ? SW Sep10 0:00 [kswapd]
……..<\/p>\n

\u540d\u79f0\uff1apstree
\u4f7f\u7528\u6743\u9650\uff1a\u6240\u6709\u4f7f\u7528\u8005
\u4f7f\u7528\u65b9\u5f0f\uff1a
pstree [-a] [-c] [-h|-Hpid] [-l] [-n] [-p] [-u] [-G|-U] [pid|user]
pstree -V
\u8bf4\u660e\uff1a\u5c06\u6240\u6709\u884c\u7a0b\u4ee5\u6811\u72b6\u56fe\u663e\u793a, \u6811\u72b6\u56fe\u5c06\u4f1a\u4ee5 pid (\u5982\u679c\u6709\u6307\u5b9a) \u6216\u662f\u4ee5 init \u8fd9\u4e2a\u57fa\u672c\u884c\u7a0b\u4e3a\u6839 (root) ,\u5982\u679c\u6709\u6307\u5b9a\u4f7f\u7528\u8005 id , \u5219\u6811\u72b6\u56fe\u4f1a\u53ea\u663e\u793a\u8be5\u4f7f\u7528\u8005\u6240\u62e5\u6709\u7684\u884c\u7a0b
\u53c2\u6570\uff1a
-a \u663e\u793a\u8be5\u884c\u7a0b\u7684\u5b8c\u6574\u6307\u4ee4\u53ca\u53c2\u6570, \u5982\u679c\u662f\u88ab\u8bb0\u5fc6\u4f53\u7f6e\u6362\u51fa\u53bb\u7684\u884c\u7a0b\u5219\u4f1a\u52a0\u4e0a\u62ec\u53f7
-c \u5982\u679c\u6709\u91cd\u8986\u7684\u884c\u7a0b\u540d, \u5219\u5206\u5f00\u5217\u51fa (\u9884\u8bbe\u503c\u662f\u4f1a\u5728\u524d\u9762\u52a0\u4e0a *
\u8303\u4f8b\uff1a
pstree
init-+-amd
|-apmd
|-atd
|-httpd—10*[httpd]
%pstree -p
init(1)-+-amd(447)
|-apmd(105)
|-atd(339)
%pstree -c
init-+-amd
|-apmd
|-atd
|-httpd-+-httpd
| |-httpd
| |-httpd
| |-httpd
….<\/p>\n

\u540d\u79f0\uff1arenice
\u4f7f\u7528\u6743\u9650\uff1a\u6240\u6709\u4f7f\u7528\u8005
\u4f7f\u7528\u65b9\u5f0f\uff1arenice priority [-p] pid …] [-g] pgrp …] [-u] user …]
\u8bf4\u660e\uff1a\u91cd\u65b0\u6307\u5b9a\u4e00\u4e2a\u6216\u591a\u4e2a\u884c\u7a0b(Process)\u7684\u4f18\u5148\u5e8f(\u4e00\u4e2a\u6216\u591a\u4e2a\u5c06\u6839\u636e\u6240\u4e0b\u7684\u53c2\u6570\u800c\u5b9a)
\u628a\u8ba1\ue4cd
-p pid \u91cd\u65b0\u6307\u5b9a\u884c\u7a0b\u7684 id \u4e3a pid \u7684\u884c\u7a0b\u7684\u4f18\u5148\u5e8f
-g pgrp \u91cd\u65b0\u6307\u5b9a\u884c\u7a0b\u7fa4\u7ec4(process group)\u7684 id \u4e3a pgrp \u7684\u884c\u7a0b (\u4e00\u4e2a\u6216\u591a\u4e2a) \u7684\u4f18\u5148\u5e8f
-u user \u91cd\u65b0\u6307\u5b9a\u884c\u7a0b\u62e5\u6709\u8005\u4e3a user \u7684\u884c\u7a0b\u7684\u4f18\u5148\u5e8f
\u8303\u4f8b\uff1a
\u5c06\u884c\u7a0b id \u4e3a 987 \u53ca 32 \u7684\u884c\u7a0b\u4e0e\u884c\u7a0b\u62e5\u6709\u8005\u4e3a daemon \u53ca root \u7684\u4f18\u5148\u5e8f\u53f7\u7801\u52a0 1 :
renice +1 987 -u daemon root -p 32
\u6ce8\u610f : \u6bcf\u4e00\u4e2a\u884c\u7a0b(Process)\u90fd\u6709\u4e00\u4e2a\u552f\u4e00\u7684 (unique) id\ue4c9<\/p>\n

\u540d\u79f0\uff1atop
\u4f7f\u7528\u6743\u9650\uff1a\u6240\u6709\u4f7f\u7528\u8005
\u4f7f\u7528\u65b9\u5f0f\uff1atop [-] [d delay] [q] [c] [S] [s] [i] [n] [b]
\u8bf4\u660e\uff1a\u5373\u65f6\u663e\u793a process \u7684\u52a8\u6001
\u628a\u8ba1\ue4cd
d : \u6539\u53d8\u663e\u793a\u7684\u66f4\u65b0\u901f\u5ea6\uff0c\u6216\u662f\u5728\u4ea4\u8c08\u5f0f\u6307\u4ee4\u5217( interactive command)\u6309 s
q : \u6ca1\u6709\u4efb\u4f55\u5ef6\u8fdf\u7684\u663e\u793a\u901f\u5ea6\uff0c\u5982\u679c\u4f7f\u7528\u8005\u662f\u6709 superuser \u7684\u6743\u9650\uff0c\u5219 top \u5c06\u4f1a\u4ee5\u6700\u9ad8\u7684\u4f18\u5148\u5e8f\u6267\u884c
c : \u5207\u6362\u663e\u793a\u6a21\u5f0f\uff0c\u5171\u6709\u4e24\u79cd\u6a21\u5f0f\uff0c\u4e00\u662f\u53ea\u663e\u793a\u6267\u884c\u6863\u7684\u540d\u79f0\uff0c\u53e6\u4e00\u79cd\u662f\u663e\u793a\u5b8c\u6574\u7684\u8def\u5f84\u4e0e\u540d\u79f0S : \u7d2f\u79ef\u6a21\u5f0f\uff0c\u4f1a\u5c06\u5df1\u5b8c\u6210\u6216\u6d88\u5931\u7684\u5b50\u884c\u7a0b ( dead child process ) \u7684 CPU time \u7d2f\u79ef\u8d77\u6765
s : \u5b89\u5168\u6a21\u5f0f\uff0c\u5c06\u4ea4\u8c08\u5f0f\u6307\u4ee4\u53d6\u6d88, \u907f\u514d\u6f5c\u5728\u7684\u5371\u673a
i : \u4e0d\u663e\u793a\u4efb\u4f55\u95f2\u7f6e (idle) \u6216\u65e0\u7528 (zombie) \u7684\u884c\u7a0b
n : \u66f4\u65b0\u7684\u6b21\u6570\uff0c\u5b8c\u6210\u540e\u5c06\u4f1a\u9000\u51fa top
b : \u6279\u6b21\u6863\u6a21\u5f0f\uff0c\u642d\u914d “n” \u53c2\u6570\u4e00\u8d77\u4f7f\u7528\uff0c\u53ef\u4ee5\u7528\u6765\u5c06 top \u7684\u7ed3\u679c\u8f93\u51fa\u5230\u6863\u6848\u5185
\u8303\u4f8b\uff1a
\u663e\u793a\u66f4\u65b0\u5341\u6b21\u540e\u9000\u51fa ;
top -n 10
\u4f7f\u7528\u8005\u5c06\u4e0d\u80fd\u5229\u7528\u4ea4\u8c08\u5f0f\u6307\u4ee4\u6765\u5bf9\u884c\u7a0b\u4e0b\u547d\u4ee4 :
top -s
\u5c06\u66f4\u65b0\u663e\u793a\u4e8c\u6b21\u7684\u7ed3\u679c\u8f93\u5165\u5230\u540d\u79f0\u4e3a top.log \u7684\u6863\u6848\u91cc :
top -n 2 -b < top.log<\/p>\n","protected":false},"excerpt":{"rendered":"

\u6307\u4ee4\uff1amesg \u4f7f\u7528\u6743\u9650 : \u6240\u6709\u4f7f\u7528\u8005 \u4f7f\u7528\u65b9\u5f0f : mesg [y|n] \u8bf4\u660e \uff1a \u51b3\u5b9a\u662f\u5426\u5141\u8bb8\u5176\u4ed6\u4eba\u4f20\u8baf<\/p>\n

\n\t\t\t\t Read More <\/span> <\/i><\/a>\n\t\t\t<\/div>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":""},"categories":[6],"tags":[],"class_list":["post-143","post","type-post","status-publish","format-standard","hentry","category-6"],"_links":{"self":[{"href":"https:\/\/3v.org.cn\/index.php?rest_route=\/wp\/v2\/posts\/143","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/3v.org.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/3v.org.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/3v.org.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/3v.org.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=143"}],"version-history":[{"count":0,"href":"https:\/\/3v.org.cn\/index.php?rest_route=\/wp\/v2\/posts\/143\/revisions"}],"wp:attachment":[{"href":"https:\/\/3v.org.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=143"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/3v.org.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=143"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/3v.org.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=143"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}