{"id":142,"date":"2007-04-17T14:39:26","date_gmt":"2007-04-17T14:39:26","guid":{"rendered":""},"modified":"2007-04-17T14:39:26","modified_gmt":"2007-04-17T14:39:26","slug":"142","status":"publish","type":"post","link":"https:\/\/3v.org.cn\/?p=142","title":{"rendered":"linux\u547d\u4ee4\u5927\u5168(3)"},"content":{"rendered":"

\u540d\u79f0 : crontab
\u4f7f\u7528\u6743\u9650 : \u6240\u6709\u4f7f\u7528\u8005
\u4f7f\u7528\u65b9\u5f0f :
crontab [ -u user ] filecrontab [ -u user ] { -l | -r | -e }
\u8bf4\u660e :
crontab \u662f\u7528\u6765\u8ba9\u4f7f\u7528\u8005\u5728\u56fa\u5b9a\u65f6\u95f4\u6216\u56fa\u5b9a\u95f4\u9694\u6267\u884c\u7a0b\u5f0f\u4e4b\u7528\uff0c\u6362\u53e5\u8bdd\u8bf4\uff0c\u4e5f\u5c31\u662f\u7c7b\u4f3c\u4f7f\u7528\u8005\u7684\u65f6\u7a0b\u8868\u3002-u user \u662f\u6307\u8bbe\u5b9a\u6307\u5b9a user \u7684\u65f6\u7a0b\u8868\uff0c\u8fd9\u4e2a\u524d\u63d0\u662f\u4f60\u5fc5\u987b\u8981\u6709\u5176\u6743\u9650(\u6bd4\u5982\u8bf4\u662f root)\u624d\u80fd\u591f\u6307\u5b9a\u4ed6\u4eba\u7684\u65f6\u7a0b\u8868\u3002\u5982\u679c\u4e0d\u4f7f\u7528 -u user \u7684\u8bdd\uff0c\u5c31\u662f\u8868\u793a\u8bbe\u5b9a\u81ea\u5df1\u7684\u65f6\u7a0b\u8868\u3002
\u9910\u6570 :
-e : \u6267\u884c\u6587\u5b57\u7f16\u8f91\u5668\u6765\u8bbe\u5b9a\u65f6\u7a0b\u8868\uff0c\u5185\u5b9a\u7684\u6587\u5b57\u7f16\u8f91\u5668\u662f VI\uff0c\u5982\u679c\u4f60\u60f3\u7528\u522b\u7684\u6587\u5b57\u7f16\u8f91\u5668\uff0c\u5219\u8bf7\u5148\u8bbe\u5b9a VISUAL \u73af\u5883\u53d8\u6570\u6765\u6307\u5b9a\u4f7f\u7528\u90a3\u4e2a\u6587\u5b57\u7f16\u8f91\u5668(\u6bd4\u5982\u8bf4 setenv VISUAL joe)
-r : \u5220\u9664\u76ee\u524d\u7684\u65f6\u7a0b\u8868
-l : \u5217\u51fa\u76ee\u524d\u7684\u65f6\u7a0b\u8868
\u65f6\u7a0b\u8868\u7684\u683c\u5f0f\u5982\u4e0b :
f1 f2 f3 f4 f5 program
\u5176\u4e2d f1 \u662f\u8868\u793a\u5206\u949f\uff0cf2 \u8868\u793a\u5c0f\u65f6\uff0cf3 \u8868\u793a\u4e00\u4e2a\u6708\u4efd\u4e2d\u7684\u7b2c\u51e0\u65e5\uff0cf4 \u8868\u793a\u6708\u4efd\uff0cf5 \u8868\u793a\u4e00\u4e2a\u661f\u671f\u4e2d\u7684\u7b2c\u51e0\u5929\u3002program \u8868\u793a\u8981\u6267\u884c\u7684\u7a0b\u5f0f\u3002
\u5f53 f1 \u4e3a * \u65f6\u8868\u793a\u6bcf\u5206\u949f\u90fd\u8981\u6267\u884c program\uff0cf2 \u4e3a * \u65f6\u8868\u793a\u6bcf\u5c0f\u65f6\u90fd\u8981\u6267\u884c\u7a0b\u5f0f\uff0c\u5176\u4f59\u7c7b\u63a8
\u5f53 f1 \u4e3a a-b \u65f6\u8868\u793a\u4ece\u7b2c a \u5206\u949f\u5230\u7b2c b \u5206\u949f\u8fd9\u6bb5\u65f6\u95f4\u5185\u8981\u6267\u884c\uff0cf2 \u4e3a a-b \u65f6\u8868\u793a\u4ece\u7b2c a \u5230\u7b2c b \u5c0f\u65f6\u90fd\u8981\u6267\u884c\uff0c\u5176\u4f59\u7c7b\u63a8
\u5f53 f1 \u4e3a *\/n \u65f6\u8868\u793a\u6bcf n \u5206\u949f\u4e2a\u65f6\u95f4\u95f4\u9694\u6267\u884c\u4e00\u6b21\uff0cf2 \u4e3a *\/n \u8868\u793a\u6bcf n \u5c0f\u65f6\u4e2a\u65f6\u95f4\u95f4\u9694\u6267\u884c\u4e00\u6b21\uff0c\u5176\u4f59\u7c7b\u63a8
\u5f53 f1 \u4e3a a, b, c,… \u65f6\u8868\u793a\u7b2c a, b, c,… \u5206\u949f\u8981\u6267\u884c\uff0cf2 \u4e3a a, b, c,… \u65f6\u8868\u793a\u7b2c a, b, c…\u4e2a\u5c0f\u65f6\u8981\u6267\u884c\uff0c\u5176\u4f59\u7c7b\u63a8
\u4f7f\u7528\u8005\u4e5f\u53ef\u4ee5\u5c06\u6240\u6709\u7684\u8bbe\u5b9a\u5148\u5b58\u653e\u5728\u6863\u6848 file \u4e2d\uff0c\u7528 crontab file \u7684\u65b9\u5f0f\u6765\u8bbe\u5b9a\u65f6\u7a0b\u8868\u3002
\u4f8b\u5b50 :
\u6bcf\u6708\u6bcf\u5929\u6bcf\u5c0f\u65f6\u7684\u7b2c 0 \u5206\u949f\u6267\u884c\u4e00\u6b21 \/bin\/ls :
0 7 * * * \/bin\/ls
\u5728 12 \u6708\u5185, \u6bcf\u5929\u7684\u65e9\u4e0a 6 \u70b9\u5230 12 \u70b9\u4e2d\uff0c\u6bcf\u9694 20 \u5206\u949f\u6267\u884c\u4e00\u6b21 \/usr\/bin\/backup :
0 6-12\/3 * 12 * \/usr\/bin\/backup
\u5468\u4e00\u5230\u5468\u4e94\u6bcf\u5929\u4e0b\u5348 5:00 \u5bc4\u4e00\u5c01\u4fe1\u7ed9 alex@domain.name :
0 17 * * 1-5 mail -s “hi” alex@domain.name < \/tmp\/maildata
\u6bcf\u6708\u6bcf\u5929\u7684\u5348\u591c 0 \u70b9 20 \u5206, 2 \u70b9 20 \u5206, 4 \u70b9 20 \u5206….\u6267\u884c echo “haha”
20 0-23\/2 * * * echo “haha”
\u6ce8\u610f :
\u5f53\u7a0b\u5f0f\u5728\u4f60\u6240\u6307\u5b9a\u7684\u65f6\u95f4\u6267\u884c\u540e\uff0c\u7cfb\u7edf\u4f1a\u5bc4\u4e00\u5c01\u4fe1\u7ed9\u4f60\uff0c\u663e\u793a\u8be5\u7a0b\u5f0f\u6267\u884c\u7684\u5185\u5bb9\uff0c\u82e5\u662f\u4f60\u4e0d\u5e0c\u671b\u6536\u5230\u8fd9\u6837\u7684\u4fe1\uff0c\u8bf7\u5728\u6bcf\u4e00\u884c\u7a7a\u4e00\u683c\u4e4b\u540e\u52a0\u4e0a > \/dev\/null 2>&1 \u5373\u53ef\u3002<\/p>\n

\u540d\u79f0 : date
\u4f7f\u7528\u6743\u9650 : \u6240\u6709\u4f7f\u7528\u8005
\u4f7f\u7528\u65b9\u5f0f :
date [-u] [-d datestr] [-s datestr] [–utc] [–universal] [–date=datestr] [–set=datestr] [–help] [–version] [+formAT] [MMDDhhmm[CC]YY][.ss]
\u8bf4\u660e :
date \u53ef\u4ee5\u7528\u6765\u663e\u793a\u6216\u8bbe\u5b9a\u7cfb\u7edf\u7684\u65e5\u671f\u4e0e\u65f6\u95f4\uff0c\u5728\u663e\u793a\u65b9\u9762\uff0c\u4f7f\u7528\u8005\u53ef\u4ee5\u8bbe\u5b9a\u6b32\u663e\u793a\u7684\u683c\u5f0f\uff0c\u683c\u5f0f\u8bbe\u5b9a\u4e3a\u4e00\u4e2a\u52a0\u53f7\u540e\u63a5\u6570\u4e2a\u6807\u8bb0\uff0c\u5176\u4e2d\u53ef\u7528\u7684\u6807\u8bb0\u5217\u8868\u5982\u4e0b :
\u65f6\u95f4\u65b9\u9762 :
% : \u5370\u51fa %
%n : \u4e0b\u4e00\u884c
%t : \u8df3\u683c
%H : \u5c0f\u65f6(00..23)
%I : \u5c0f\u65f6(01..12)
%k : \u5c0f\u65f6(0..23)
%l : \u5c0f\u65f6(1..12)
%M : \u5206\u949f(00..59)
%p : \u663e\u793a\u672c\u5730 AM \u6216 PM
%r : \u76f4\u63a5\u663e\u793a\u65f6\u95f4 (12 \u5c0f\u65f6\u5236\uff0c\u683c\u5f0f\u4e3a hh:mm:ss [AP]M)
%s : \u4ece 1970 \u5e74 1 \u6708 1 \u65e5 00:00:00 UTC \u5230\u76ee\u524d\u4e3a\u6b62\u7684\u79d2\u6570
%S : \u79d2(00..61)
%T : \u76f4\u63a5\u663e\u793a\u65f6\u95f4 (24 \u5c0f\u65f6\u5236)
%X : \u76f8\u5f53\u4e8e %H:%M:%S
%Z : \u663e\u793a\u65f6\u533a
\u65e5\u671f\u65b9\u9762 :
%a : \u661f\u671f\u51e0 (Sun..Sat)
%A : \u661f\u671f\u51e0 (Sunday..Saturday)
%b : \u6708\u4efd (Jan..Dec)
%B : \u6708\u4efd (January..December)
%c : \u76f4\u63a5\u663e\u793a\u65e5\u671f\u4e0e\u65f6\u95f4
%d : \u65e5 (01..31)
%D : \u76f4\u63a5\u663e\u793a\u65e5\u671f (mm\/dd\/yy)
%h : \u540c %b
%j : \u4e00\u5e74\u4e2d\u7684\u7b2c\u51e0\u5929 (001..366)
%m : \u6708\u4efd (01..12)
%U : \u4e00\u5e74\u4e2d\u7684\u7b2c\u51e0\u5468 (00..53) (\u4ee5 Sunday \u4e3a\u4e00\u5468\u7684\u7b2c\u4e00\u5929\u7684\u60c5\u5f62)
%w : \u4e00\u5468\u4e2d\u7684\u7b2c\u51e0\u5929 (0..6)
%W : \u4e00\u5e74\u4e2d\u7684\u7b2c\u51e0\u5468 (00..53) (\u4ee5 Monday \u4e3a\u4e00\u5468\u7684\u7b2c\u4e00\u5929\u7684\u60c5\u5f62)
%x : \u76f4\u63a5\u663e\u793a\u65e5\u671f (mm\/dd\/yy)
%y : \u5e74\u4efd\u7684\u6700\u540e\u4e24\u4f4d\u6570\u5b57 (00.99)
%Y : \u5b8c\u6574\u5e74\u4efd (0000..9999)
\u82e5\u662f\u4e0d\u4ee5\u52a0\u53f7\u4f5c\u4e3a\u5f00\u5934\uff0c\u5219\u8868\u793a\u8981\u8bbe\u5b9a\u65f6\u95f4\uff0c\u800c\u65f6\u95f4\u683c\u5f0f\u4e3a MMDDhhmm[CC]YY][.ss]\uff0c\u5176\u4e2d MM \u4e3a\u6708\u4efd\uff0cDD \u4e3a\u65e5\uff0chh \u4e3a\u5c0f\u65f6\uff0cmm \u4e3a\u5206\u949f\uff0cCC \u4e3a\u5e74\u4efd\u524d\u4e24\u4f4d\u6570\u5b57\uff0cYY \u4e3a\u5e74\u4efd\u540e\u4e24\u4f4d\u6570\u5b57\uff0css \u4e3a\u79d2\u6570
\u628a\u8ba1 :
-d datestr : \u663e\u793a datestr \u4e2d\u6240\u8bbe\u5b9a\u7684\u65f6\u95f4 (\u975e\u7cfb\u7edf\u65f6\u95f4)
–help : \u663e\u793a\u8f85\u52a9\u8baf\u606f
-s datestr : \u5c06\u7cfb\u7edf\u65f6\u95f4\u8bbe\u4e3a datestr \u4e2d\u6240\u8bbe\u5b9a\u7684\u65f6\u95f4
-u : \u663e\u793a\u76ee\u524d\u7684\u683c\u6797\u5a01\u6cbb\u65f6\u95f4
–version : \u663e\u793a\u7248\u672c\u7f16\u53f7
\u4f8b\u5b50 :
\u663e\u793a\u65f6\u95f4\u540e\u8df3\u884c\uff0c\u518d\u663e\u793a\u76ee\u524d\u65e5\u671f :
date +%T%n%D
\u663e\u793a\u6708\u4efd\u4e0e\u65e5\u6570 :
date +%B %d
\u663e\u793a\u65e5\u671f\u4e0e\u8bbe\u5b9a\u65f6\u95f4(12:34:56) :
date –date 12:34:56
\u6ce8\u610f :
\u5f53\u4f60\u4e0d\u5e0c\u671b\u51fa\u73b0\u65e0\u610f\u4e49\u7684 0 \u65f6(\u6bd4\u5982\u8bf4 1999\/03\/07)\uff0c\u5219\u53ef\u4ee5\u5728\u6807\u8bb0\u4e2d\u63d2\u5165 – \u7b26\u53f7\uff0c\u6bd4\u5982\u8bf4 date +%-H:%-M:%-S \u4f1a\u628a\u65f6\u5206\u79d2\u4e2d\u65e0\u610f\u4e49\u7684 0 \u7ed9\u53bb\u6389\uff0c\u50cf\u662f\u539f\u672c\u7684 08:09:04 \u4f1a\u53d8\u4e3a 8:9:4\u3002\u53e6\u5916\uff0c\u53ea\u6709\u53d6\u5f97\u6743\u9650\u8005(\u6bd4\u5982\u8bf4 root)\u624d\u80fd\u8bbe\u5b9a\u7cfb\u7edf\u65f6\u95f4\u3002
\u5f53\u4f60\u4ee5 root \u8eab\u5206\u66f4\u6539\u4e86\u7cfb\u7edf\u65f6\u95f4\u4e4b\u540e\uff0c\u8bf7\u8bb0\u5f97\u4ee5 clock -w \u6765\u5c06\u7cfb\u7edf\u65f6\u95f4\u5199\u5165 CMOS \u4e2d\uff0c\u8fd9\u6837\u4e0b\u6b21\u91cd\u65b0\u5f00\u673a\u65f6\u7cfb\u7edf\u65f6\u95f4\u624d\u4f1a\u6301\u7eed\u62b1\u6301\u6700\u65b0\u7684\u6b63\u786e\u503c\u3002<\/p>\n

\u540d\u79f0 : sleep
\u4f7f\u7528\u6743\u9650 : \u6240\u6709\u4f7f\u7528\u8005
\u4f7f\u7528\u65b9\u5f0f : sleep [–help] [–version] number[smhd]
\u8bf4\u660e : sleep \u53ef\u4ee5\u7528\u6765\u5c06\u76ee\u524d\u52a8\u4f5c\u5ef6\u8fdf\u4e00\u6bb5\u65f6\u95f4
\u53c2\u6570\u8bf4\u660e :
–help : \u663e\u793a\u8f85\u52a9\u8baf\u606f
–version : \u663e\u793a\u7248\u672c\u7f16\u53f7
number : \u65f6\u95f4\u957f\u5ea6\uff0c\u540e\u9762\u53ef\u63a5 s\u3001m\u3001h \u6216 d
\u5176\u4e2d s \u4e3a\u79d2\uff0cm \u4e3a \u5206\u949f\uff0ch \u4e3a\u5c0f\u65f6\uff0cd \u4e3a\u65e5\u6570
\u4f8b\u5b50 :
\u663e\u793a\u76ee\u524d\u65f6\u95f4\u540e\u5ef6\u8fdf 1 \u5206\u949f\uff0c\u4e4b\u540e\u518d\u6b21\u663e\u793a\u65f6\u95f4 :
date;sleep 1m;date
\u540d\u79f0\uff1a time
\u4f7f\u7528\u6743\u9650\uff1a \u6240\u6709\u4f7f\u7528\u8005
\u4f7f\u7528\u65b9\u5f0f\uff1a time [options] COMMAND [arguments]
\u8bf4\u660e\uff1a time \u6307\u4ee4\u7684\u7528\u9014\uff0c\u5728\u4e8e\u91cf\u6d4b\u7279\u5b9a\u6307\u4ee4\u6267\u884c\u65f6\u6240\u9700\u6d88\u8017\u7684\u65f6\u95f4\u53ca\u7cfb\u7edf\u8d44\u6e90\u7b49\u8d44\u8baf\u3002\u4f8b\u5982 CPU \u65f6\u95f4\u3001\u8bb0\u5fc6\u4f53\u3001\u8f93\u5165\u8f93\u51fa\u7b49\u7b49\u3002\u9700\u8981\u7279\u522b\u6ce8\u610f\u7684\u662f\uff0c\u90e8\u5206\u8d44\u8baf\u5728 Linux \u4e0a\u663e\u793a\u4e0d\u51fa\u6765\u3002\u8fd9\u662f\u56e0\u4e3a\u5728 Linux \u4e0a\u90e8\u5206\u8d44\u6e90\u7684\u5206\u914d\u51fd\u5f0f\u4e0e time \u6307\u4ee4\u6240\u9884\u8bbe\u7684\u65b9\u5f0f\u5e76\u4e0d\u76f8\u540c\uff0c\u4ee5\u81f4\u4e8e time \u6307\u4ee4\u65e0\u6cd5\u53d6\u5f97\u8fd9\u4e9b\u8d44\u6599\u3002
\u628a\u8ba1\ue4cd
-o or –output=FILE
\u8bbe\u5b9a\u7ed3\u679c\u8f93\u51fa\u6863\u3002\u8fd9\u4e2a\u9009\u9879\u4f1a\u5c06 time \u7684\u8f93\u51fa\u5199\u5165 \u6240\u6307\u5b9a\u7684\u6863\u6848\u4e2d\u3002\u5982\u679c\u6863\u6848\u5df2\u7ecf\u5b58\u5728\uff0c\u7cfb\u7edf\u5c06\u8986\u5199\u5176\u5185\u5bb9\u3002
-a or –append
\u914d\u5408 -o \u4f7f\u7528\uff0c\u4f1a\u5c06\u7ed3\u679c\u5199\u5230\u6863\u6848\u7684\u672b\u7aef\uff0c\u800c\u4e0d\u4f1a\u8986\u76d6\u6389\u539f\u6765\u7684\u5185\u5bb9\u3002
-f formAT or –format=formAT
\u4ee5 formAT \u5b57\u4e32\u8bbe\u5b9a\u663e\u793a\u65b9\u5f0f\u3002\u5f53\u8fd9\u4e2a\u9009\u9879\u6ca1\u6709\u88ab\u8bbe\u5b9a\u7684\u65f6\u5019\uff0c\u4f1a\u7528\u7cfb\u7edf\u9884\u8bbe\u7684\u683c\u5f0f\u3002\u4e0d\u8fc7\u4f60\u53ef\u4ee5\u7528\u73af\u5883\u53d8\u6570 time \u6765\u8bbe\u5b9a\u8fd9\u4e2a\u683c\u5f0f\uff0c\u5982\u6b64\u4e00\u6765\u5c31\u4e0d\u5fc5\u6bcf\u6b21\u767b\u5165\u7cfb\u7edf\u90fd\u8981\u8bbe\u5b9a\u4e00\u6b21\u3002
\u4e00\u822c\u8bbe\u5b9a\u4e0a\uff0c\u4f60\u53ef\u4ee5\u7528 <\/p>\n

\u8868\u793a\u8df3\u680f\uff0c\u6216\u8005\u662f\u7528 <\/p>\n

\u8868\u793a\u6362\u884c\u3002\u6bcf\u4e00\u9879\u8d44\u6599\u8981\u7528 % \u505a\u4e3a\u524d\u5bfc\u3002\u5982\u679c\u8981\u5728\u5b57\u4e32\u4e2d\u4f7f\u7528\u767e\u5206\u6bd4\u7b26\u53f7\uff0c\u5c31\u7528 \u3002\uff08\u5b66\u8fc7 C \u8bed\u8a00\u7684\u4eba\u5927\u6982\u4f1a\u89c9\u5f97\u5f88\u719f\u6089\uff09
time \u6307\u4ee4\u53ef\u4ee5\u663e\u793a\u7684\u8d44\u6e90\u6709\u56db\u5927\u9879\uff0c\u5206\u522b\u662f\uff1a
Time resources
Memory resources
IO resources
Command info
\u8be6\u7ec6\u7684\u5185\u5bb9\u5982\u4e0b\uff1a <\/p>\n

Time Resources
E \u6267\u884c\u6307\u4ee4\u6240\u82b1\u8d39\u7684\u65f6\u95f4\uff0c\u683c\u5f0f\u662f\uff1a[hour]:minute:second\u3002\u8bf7\u6ce8\u610f\u8fd9\u4e2a\u6570\u5b57\u5e76\u4e0d\u4ee3\u8868\u5b9e\u9645\u7684 CPU \u65f6\u95f4\u3002
e \u6267\u884c\u6307\u4ee4\u6240\u82b1\u8d39\u7684\u65f6\u95f4\uff0c\u5355\u4f4d\u662f\u79d2\u3002\u8bf7\u6ce8\u610f\u8fd9\u4e2a\u6570\u5b57\u5e76\u4e0d\u4ee3\u8868\u5b9e\u9645\u7684 CPU \u65f6\u95f4\u3002
S \u6307\u4ee4\u6267\u884c\u65f6\u5728\u6838\u5fc3\u6a21\u5f0f\uff08kernel mode\uff09\u6240\u82b1\u8d39\u7684\u65f6\u95f4\uff0c\u5355\u4f4d\u662f\u79d2\u3002
U \u6307\u4ee4\u6267\u884c\u65f6\u5728\u4f7f\u7528\u8005\u6a21\u5f0f\uff08user mode\uff09\u6240\u82b1\u8d39\u7684\u65f6\u95f4\uff0c\u5355\u4f4d\u662f\u79d2\u3002
P \u6267\u884c\u6307\u4ee4\u65f6 CPU \u7684\u5360\u7528\u6bd4\u4f8b\u3002\u5176\u5b9e\u8fd9\u4e2a\u6570\u5b57\u5c31\u662f\u6838\u5fc3\u6a21\u5f0f\u52a0\u4e0a\u4f7f\u7528\u8005\u6a21\u5f0f\u7684 CPU \u65f6\u95f4\u9664\u4ee5\u603b\u65f6\u95f4\u3002 <\/p>\n

Memory Resources
M \u6267\u884c\u65f6\u6240\u5360\u7528\u7684\u5b9e\u4f53\u8bb0\u5fc6\u4f53\u7684\u6700\u5927\u503c\u3002\u5355\u4f4d\u662f KB
t \u6267\u884c\u65f6\u6240\u5360\u7528\u7684\u5b9e\u4f53\u8bb0\u5fc6\u4f53\u7684\u5e73\u5747\u503c\uff0c\u5355\u4f4d\u662f KB
K \u6267\u884c\u7a0b\u5e8f\u6240\u5360\u7528\u7684\u8bb0\u5fc6\u4f53\u603b\u91cf\uff08stack+data+text\uff09\u7684\u5e73\u5747\u5927\u5c0f\uff0c\u5355\u4f4d\u662f KB
D \u6267\u884c\u7a0b\u5e8f\u7684\u81ea\u6709\u8d44\u6599\u533a\uff08unshared data area\uff09\u7684\u5e73\u5747\u5927\u5c0f\uff0c\u5355\u4f4d\u662f KB
p \u6267\u884c\u7a0b\u5e8f\u7684\u81ea\u6709\u5806\u53e0\uff08unshared stack\uff09\u7684\u5e73\u5747\u5927\u5c0f\uff0c\u5355\u4f4d\u662f KB
X \u6267\u884c\u7a0b\u5e8f\u95f4\u5171\u4eab\u5185\u5bb9\uff08shared text\uff09\u7684\u5e73\u5747\u503c\uff0c\u5355\u4f4d\u662f KB
Z \u7cfb\u7edf\u8bb0\u5fc6\u4f53\u9875\u7684\u5927\u5c0f\uff0c\u5355\u4f4d\u662f byte\u3002\u5bf9\u540c\u4e00\u4e2a\u7cfb\u7edf\u6765\u8bf4\u8fd9\u662f\u4e2a\u5e38\u6570 <\/p>\n

IO Resources
F \u6b64\u7a0b\u5e8f\u7684\u4e3b\u8981\u8bb0\u5fc6\u4f53\u9875\u9519\u8bef\u53d1\u751f\u6b21\u6570\u3002\u6240\u8c13\u7684\u4e3b\u8981\u8bb0\u5fc6\u4f53\u9875\u9519\u8bef\u662f\u6307\u67d0\u4e00\u8bb0\u5fc6\u4f53\u9875\u5df2\u7ecf\u7f6e\u6362\u5230\u7f6e\u6362\u6863\uff08swap file)\u4e2d\uff0c\u800c\u4e14\u5df2\u7ecf\u5206\u914d\u7ed9\u5176\u4ed6\u7a0b\u5e8f\u3002\u6b64\u65f6\u8be5\u9875\u7684\u5185\u5bb9\u5fc5\u987b\u4ece\u7f6e\u6362\u6863\u91cc\u518d\u8bfb\u51fa\u6765\u3002
R \u6b64\u7a0b\u5e8f\u7684\u6b21\u8981\u8bb0\u5fc6\u4f53\u9875\u9519\u8bef\u53d1\u751f\u6b21\u6570\u3002\u6240\u8c13\u7684\u6b21\u8981\u8bb0\u5fc6\u4f53\u9875\u9519\u8bef\u662f\u6307\u67d0\u4e00\u8bb0\u5fc6\u4f53\u9875\u867d\u7136\u5df2\u7ecf\u7f6e\u6362\u5230\u7f6e\u6362\u6863\u4e2d\uff0c\u4f46\u5c1a\u672a\u5206\u914d\u7ed9\u5176\u4ed6\u7a0b\u5e8f\u3002\u6b64\u65f6\u8be5\u9875\u7684\u5185\u5bb9\u5e76\u672a\u88ab\u7834\u574f\uff0c\u4e0d\u5fc5\u4ece\u7f6e\u6362\u6863\u91cc\u8bfb\u51fa\u6765
W \u6b64\u7a0b\u5e8f\u88ab\u4ea4\u6362\u5230\u7f6e\u6362\u6863\u7684\u6b21\u6570
c \u6b64\u7a0b\u5e8f\u88ab\u5f3a\u8feb\u4e2d\u65ad\uff08\u50cf\u662f\u5206\u914d\u5230\u7684 CPU \u65f6\u95f4\u8017\u5c3d\uff09\u7684\u6b21\u6570
w \u6b64\u7a0b\u5e8f\u81ea\u613f\u4e2d\u65ad\uff08\u50cf\u662f\u5728\u7b49\u5f85\u67d0\u4e00\u4e2a I\/O \u6267\u884c\u5b8c\u6bd5\uff0c\u50cf\u662f\u78c1\u789f\u8bfb\u53d6\u7b49\u7b49\uff09\u7684\u6b21\u6570
I \u6b64\u7a0b\u5e8f\u6240\u8f93\u5165\u7684\u6863\u6848\u6570
O \u6b64\u7a0b\u5e8f\u6240\u8f93\u51fa\u7684\u6863\u6848\u6570
r \u6b64\u7a0b\u5e8f\u6240\u6536\u5230\u7684 Socket Message
s \u6b64\u7a0b\u5e8f\u6240\u9001\u51fa\u7684 Socket Message
k \u6b64\u7a0b\u5e8f\u6240\u6536\u5230\u7684\u4fe1\u53f7 ( Signal )\u6570\u91cf <\/p>\n

Command Info
C \u6267\u884c\u65f6\u7684\u53c2\u6570\u4ee5\u53ca\u6307\u4ee4\u540d\u79f0
x \u6307\u4ee4\u7684\u7ed3\u675f\u4ee3\u7801 ( Exit Status ) <\/p>\n

-p or –portability
\u8fd9\u4e2a\u9009\u9879\u4f1a\u81ea\u52a8\u628a\u663e\u793a\u683c\u5f0f\u8bbe\u5b9a\u6210\u4e3a\uff1a
real %e
user %U
sys %S
\u8fd9\u4e48\u505a\u7684\u76ee\u7684\u662f\u4e3a\u4e86\u4e0e POSIX \u89c4\u683c\u76f8\u5bb9\u3002
-v or –verbose
\u8fd9\u4e2a\u9009\u9879\u4f1a\u628a\u6240\u6709\u7a0b\u5f0f\u4e2d\u7528\u5230\u7684\u8d44\u6e90\u901a\u901a\u5217\u51fa\u6765\uff0c\u4e0d\u4f46\u5982\u4e00\u822c\u82f1\u6587\u8bed\u53e5\uff0c\u8fd8\u6709\u8bf4\u660e\u3002\u5bf9\u4e0d\u60f3\u82b1\u65f6\u95f4\u53bb\u719f\u4e60\u683c\u5f0f\u8bbe\u5b9a\u6216\u662f\u521a\u521a\u5f00\u59cb\u63a5\u89e6\u8fd9\u4e2a\u6307\u4ee4\u7684\u4eba\u76f8\u5f53\u6709\u7528\u3002
\u8303\u4f8b\uff1a
\u5229\u7528\u4e0b\u9762\u7684\u6307\u4ee4
time -v ps -aux
\u6211\u4eec\u53ef\u4ee5\u83b7\u5f97\u6267\u884c ps -aux \u7684\u7ed3\u679c\u548c\u6240\u82b1\u8d39\u7684\u7cfb\u7edf\u8d44\u6e90\u3002\u5982\u4e0b\u9762\u6240\u5217\u7684\u8d44\u6599\uff1a
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 1 0.0 0.4 1096 472 ? S Apr19 0:04 init
root 2 0.0 0.0 0 0 ? SW Apr19 0:00 [kflushd]
root 3 0.0 0.0 0 0 ? SW Apr19 0:00 [kpiod]
……
root 24269 0.0 1.0 2692 996 pts\/3 R 12:16 0:00 ps -aux
Command being timed: “ps -aux”
User time (seconds): 0.05
System time (seconds): 0.06
Percent of CPU this job got: 68%
Elapsed (wall clock) time (h:mm:ss or m:ss): 0:00.16
Average shared text size (kbytes): 0
Average unshared data size (kbytes): 0
Average stack size (kbytes): 0
Average total size (kbytes): 0
Maximum resident set size (kbytes): 0
Average resident set size (kbytes): 0
Major (requiring I\/O) page faults: 238
Minor (reclaiming a frame) page faults: 46
Voluntary context switches: 0
Involuntary context switches: 0
Swaps: 0
File system inputs: 0
File system outputs: 0
Socket messages sent: 0
Socket messages received: 0
Signals delivered: 0
Page size (bytes): 4096
Exit status: 0<\/p>\n

\u540d\u79f0\uff1a uptime
\u4f7f\u7528\u6743\u9650\uff1a \u6240\u6709\u4f7f\u7528\u8005
\u4f7f\u7528\u65b9\u5f0f\uff1a uptime [-V]
\u8bf4\u660e\uff1a uptime \u63d0\u4f9b\u4f7f\u7528\u8005\u4e0b\u9762\u7684\u8d44\u8baf\uff0c\u4e0d\u9700\u5176\u4ed6\u53c2\u6570\uff1a
\u73b0\u5728\u7684\u65f6\u95f4
\u7cfb\u7edf\u5f00\u673a\u8fd0\u8f6c\u5230\u73b0\u5728\u7ecf\u8fc7\u7684\u65f6\u95f4
\u8fde\u7ebf\u7684\u4f7f\u7528\u8005\u6570\u91cf
\u6700\u8fd1\u4e00\u5206\u949f\uff0c\u4e94\u5206\u949f\u548c\u5341\u4e94\u5206\u949f\u7684\u7cfb\u7edf\u8d1f\u8f7d
\u53c2\u6570\uff1a -V \u663e\u793a\u7248\u672c\u8d44\u8baf\u3002
\u8303\u4f8b\uff1a uptime
\u5176\u7ed3\u679c\u4e3a\uff1a
10:41am up 5 days, 10 min, 1 users, load average: 0.00, 0.00, 1.99<\/p>\n

\u540d\u79f0\uff1achfn
\u4f7f\u7528\u6743\u9650\uff1a\u6240\u6709\u4f7f\u7528\u8005
\u7528\u6cd5\uff1ashell>> chfn
\u8bf4\u660e\uff1a\u63d0\u4f9b\u4f7f\u7528\u8005\u66f4\u6539\u4e2a\u4eba\u8d44\u8baf\uff0c\u7528\u4e8e finger and mail username
\u8303\u4f8b\uff1a
shell>> chfn
Changing finger information for user
Password: [del]
Name[]:Johnney Huang ### \u63d0\u4f9b finger \u65f6\u7684\u8d44\u6599
Office[]:NCCU
Office Phone[]: [del]
Home Phone[]: [del]<\/p>\n

\u540d\u79f0\uff1achsh
\u4f7f\u7528\u6743\u9650\uff1a\u6240\u6709\u4f7f\u7528\u8005
\u7528\u6cd5\uff1ashell>> chsh
\u8bf4\u660e\uff1a\u66f4\u6539\u4f7f\u7528\u8005 shell \u8bbe\u5b9a
\u8303\u4f8b\uff1a
shell>> chsh
Changing fihanging shell for user1
Password: [del]
New shell [\/bin\/tcsh]: ### [\u662f\u76ee\u524d\u4f7f\u7528\u7684 shell]
[del]
shell>> chsh -l ### \u5c55\u793a \/etc\/shells \u6863\u6848\u5185\u5bb9
\/bin\/bash
\/bin\/sh
\/bin\/ash
\/bin\/bsh
\/bin\/tcsh
\/bin\/csh
\u201d finger [\u8fd4\u56de]<\/p>\n

\u540d\u79f0\uff1a finger
\u4f7f\u7528\u6743\u9650\uff1a \u6240\u6709\u4f7f\u7528\u8005
\u4f7f\u7528\u65b9\u5f0f\uff1a finger [options] user[@address]
\u8bf4\u660e\uff1afinger \u53ef\u4ee5\u8ba9\u4f7f\u7528\u8005\u67e5\u8be2\u4e00\u4e9b\u5176\u4ed6\u4f7f\u7528\u8005\u7684\u8d44\u6599\u3002\u4f1a\u5217\u51fa\u6765\u7684\u8d44\u6599\u6709\uff1a
Login Name
User Name
Home directory
Shell
Login status
mail status
.plan
.project
.forward
\u5176\u4e2d .plan \uff0c.project \u548c .forward \u5c31\u662f\u4f7f\u7528\u8005\u5728\u4ed6\u7684 Home Directory \u91cc\u7684 .plan \uff0c .project \u548c .forward \u7b49\u6863\u6848\u91cc\u7684\u8d44\u6599\u3002\u5982\u679c\u6ca1\u6709\u5c31\u6ca1\u6709\u3002finger \u6307\u4ee4\u5e76\u4e0d\u9650\u5b9a\u4e8e\u5728\u540c\u4e00\u4f3a\u670d\u5668\u4e0a\u67e5\u8be2\uff0c\u4e5f\u53ef\u4ee5\u5bfb\u627e\u67d0\u4e00\u4e2a\u8fdc\u7aef\u4f3a\u670d\u5668\u4e0a\u7684\u4f7f\u7528\u8005\u3002\u53ea\u8981\u7ed9\u4e00\u4e2a\u50cf\u662f E-mail address \u4e00\u822c\u7684\u5730\u5740\u5373\u53ef\u3002
\u628a\u8ba1\ue4cd
-l
\u591a\u884c\u663e\u793a\u3002
-s
\u5355\u884c\u663e\u793a\u3002\u8fd9\u4e2a\u9009\u9879\u53ea\u663e\u793a\u767b\u5165\u540d\u79f0\uff0c\u771f\u5b9e\u59d3\u540d\uff0c\u7ec8\u7aef\u673a\u540d\u79f0\uff0c\u95f2\u7f6e\u65f6\u95f4\uff0c\u767b\u5165\u65f6\u95f4\uff0c\u529e\u516c\u5ba4\u53f7\u7801\u53ca\u7535\u8bdd\u53f7\u7801\u3002\u5982\u679c\u6240\u67e5\u8be2\u7684\u4f7f\u7528\u8005\u662f\u8fdc\u7aef\u4f3a\u670d\u5668\u7684\u4f7f\u7528\u8005\uff0c\u8fd9\u4e2a\u9009\u9879\u65e0\u6548\u3002
\u8303\u4f8b\uff1a\u4e0b\u5217\u6307\u4ee4\u53ef\u4ee5\u67e5\u8be2\u672c\u673a\u7ba1\u7406\u5458\u7684\u8d44\u6599\uff1a
finger root
\u5176\u7ed3\u679c\u5982\u4e0b\uff1a
Login: root Name: root
Directory: \/root Shell: \/bin\/bash
Never logged in.
No mail.
No Plan.<\/p>\n

\u540d\u79f0\uff1alast
\u4f7f\u7528\u6743\u9650\uff1a\u6240\u6709\u4f7f\u7528\u8005
\u4f7f\u7528\u65b9\u5f0f\uff1ashell>> last [options]
\u8bf4\u660e\uff1a\u663e\u793a\u7cfb\u7edf\u5f00\u673a\u4ee5\u6765\u83b7\u662f\u4ece\u6bcf\u6708\u521d\u767b\u5165\u8005\u7684\u8baf\u606f
\u628a\u8ba1\ue4cd
-R \u7701\u7565 hostname \u7684\u680f\u4f4d
-num \u5c55\u793a\u524d num \u4e2a
username \u5c55\u793a username \u7684\u767b\u5165\u8baf\u606f
tty \u9650\u5236\u767b\u5165\u8baf\u606f\u5305\u542b\u7ec8\u7aef\u673a\u4ee3\u53f7
\u8303\u4f8b\uff1a
shell>> last -R -2
johnney pts\/1 Mon Aug 14 20:42 still logged in
johnney pts\/0 Mon Aug 14 19:59 still logged in
wtmp begins Tue Aug 1 09:01:10 2000 ### \/var\/log\/wtmp <\/p>\n

shell>> last -2 minery
minery pts\/0 140.119.217.115 Mon Aug 14 18:37 – 18:40 (00:03)
minery pts\/0 140.119.217.115 Mon Aug 14 17:22 – 17:24 (00:02)
wtmp begins Tue Aug 1 09:01:10 2000<\/p>\n

\u540d\u79f0:login
\u8fd9\u4e2a\u547d\u4ee4\u90fd\u4e0d\u4f1a\u5c31\u4e0d\u8981\u5e72\u7b97\u4e86\uff01\u5475\u5475\u6211\u4e5f\u4e0d\u5728\u8fd9\u91cc\u591a\u8d39\u7b14\u58a8\u803d\u8bef\u5927\u5bb6\u7f8e\u597d\u9752\u6625\u4e86^_^
\u540d\u79f0\uff1apasswd
\u4f7f\u7528\u6743\u9650\uff1a\u6240\u6709\u4f7f\u7528\u8005
\u4f7f\u7528\u65b9\u5f0f\uff1apasswd [-k] [-l] [-u [-f] [-d] [-S] [username]
\u8bf4\u660e\uff1a\u7528\u6765\u66f4\u6539\u4f7f\u7528\u8005\u7684\u5bc6\u7801
\u53c2\u6570\uff1a
-k
-l
-u
-f
-d \u5173\u95ed\u4f7f\u7528\u8005\u7684\u5bc6\u7801\u8ba4\u8bc1\u529f\u80fd, \u4f7f\u7528\u8005\u5728\u767b\u5165\u65f6\u5c06\u53ef\u4ee5\u4e0d\u7528\u8f93\u5165\u5bc6\u7801, \u53ea\u6709\u5177\u5907 root \u6743\u9650\u7684\u4f7f\u7528\u8005\u65b9\u53ef\u4f7f\u7528.
-S \u663e\u793a\u6307\u5b9a\u4f7f\u7528\u8005\u7684\u5bc6\u7801\u8ba4\u8bc1\u79cd\u7c7b, \u53ea\u6709\u5177\u5907 root \u6743\u9650\u7684\u4f7f\u7528\u8005\u65b9\u53ef\u4f7f\u7528.
[username] \u6307\u5b9a\u5e10\u53f7\u540d\u79f0.<\/p>\n

\u540d\u79f0 : who
\u4f7f\u7528\u6743\u7ebf : \u6240\u6709\u4f7f\u7528\u8005\u90fd\u53ef\u4f7f\u7528
\u4f7f\u7528\u65b9\u5f0f : who – [husfV] [user]
\u8bf4\u660e : \u663e\u793a\u7cfb\u7edf\u4e2d\u6709\u90a3\u4e9b\u4f7f\u7528\u8005\u6b63\u5728\u4e0a\u9762\uff0c\u663e\u793a\u7684\u8d44\u6599\u5305\u542b\u4e86\u4f7f\u7528\u8005 ID\uff0c\u4f7f\u7528\u7684\u7ec8\u7aef\u673a\uff0c\u4ece\u90a3\u8fb9\u8fde\u4e0a\u6765\u7684\uff0c\u4e0a\u7ebf\u65f6\u95f4\uff0c\u5446\u6ede\u65f6\u95f4\uff0cCPU \u4f7f\u7528\u91cf\uff0c\u52a8\u4f5c\u7b49\u7b49\u3002
\u628a\u8ba1 :
-h : \u4e0d\u8981\u663e\u793a\u6807\u9898\u5217
-u : \u4e0d\u8981\u663e\u793a\u4f7f\u7528\u8005\u7684\u52a8\u4f5c\/\u5de5\u4f5c
-s : \u4f7f\u7528\u7b80\u77ed\u7684\u683c\u5f0f\u6765\u663e\u793a
-f : \u4e0d\u8981\u663e\u793a\u4f7f\u7528\u8005\u7684\u4e0a\u7ebf\u4f4d\u7f6e
-V : \u663e\u793a\u7a0b\u5f0f\u7248\u672c
\u540d\u79f0\uff1a\/etc\/aliases
\u4f7f\u7528\u6743\u9650\uff1a\u7cfb\u7edf\u7ba1\u7406\u8005
\u4f7f\u7528\u65b9\u5f0f\uff1a \u8bf7\u7528 newaliases \u66f4\u65b0\u8d44\u6599\u5e93
\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\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
\u201d mail [\u8fd4\u56de]<\/p>\n

\u540d\u79f0\uff1amail
\u4f7f\u7528\u6743\u9650\uff1a\u6240\u6709\u4f7f\u7528\u8005 <\/p>\n

\u4f7f\u7528\u65b9\u5f0f\uff1amail [-iInv] [-s subject] [-c cc-addr] [-b bcc-addr] user1 [user 2 …] <\/p>\n

\u8bf4\u660e\uff1a
mail \u4e0d\u4ec5\u53ea\u662f\u4e00\u4e2a\u6307\u4ee4\uff0c mail \u8fd8\u662f\u4e00\u4e2a\u7535\u5b50\u90ae\u4ef6\u7a0b\u5f0f\uff0c\u4e0d\u8fc7\u5229\u7528 mail \u6765\u8bfb\u4fe1\u7684\u4eba\u5e94\u8be5\u5f88\u5c11\u5427\uff01\u5bf9\u4e8e\u7cfb\u7edf\u7ba1\u7406\u8005\u6765\u8bf4 mail \u5c31\u5f88\u6709\u7528\uff0c\u56e0\u4e3a\u7ba1\u7406\u8005\u53ef\u4ee5\u7528 mail \u5199\u6210 script \uff0c\u5b9a\u671f\u5bc4\u4e00\u4e9b\u5907\u5fd8\u5f55\u63d0\u9192\u7cfb\u7edf\u7684\u4f7f\u7528\u8005\u3002 <\/p>\n

\u53c2\u6570\uff1a
i \u5ffd\u7565 tty \u7684\u4e2d\u65ad\u8baf\u53f7\u3002 (interrupt)
I \u5f3a\u8feb\u8bbe\u6210\u4e92\u52a8\u6a21\u5f0f\u3002 (Interactive)
v \u5217\u5370\u51fa\u8baf\u606f\uff0c\u4f8b\u5982\u9001\u4fe1\u7684\u5730\u70b9\u3001\u72b6\u6001\u7b49\u7b49\u3002 (verbose)
n \u4e0d\u8bfb\u5165 mail.rc \u8bbe\u5b9a\u6863\u3002
s \u90ae\u4ef6\u6807\u9898\u3002
c cc \u90ae\u4ef6\u5730\u5740\u3002
b bcc \u90ae\u4ef6\u5730\u5740\u3002 <\/p>\n

\u8303\u4f8b\uff1a <\/p>\n

\u5c06\u4fe1\u4ef6\u9001\u7ed9\u4e00\u4e2a\u6216\u4ee5\u4e0a\u7684\u7535\u5b50\u90ae\u4ef6\u5730\u5740\uff0c\u7531\u4e8e\u6ca1\u6709\u52a0\u5165\u5176\u4ed6\u7684\u9009\u9879\uff0c\u4f7f\u7528\u8005\u5fc5\u987b\u8f93\u5165\u6807\u9898\u4e0e\u4fe1\u4ef6\u7684\u5185\u5bb9\u7b49\u3002\u800c user2 \u6ca1\u6709\u4e3b\u673a\u4f4d\u7f6e\uff0c\u5c31\u4f1a\u9001\u7ed9\u90ae\u4ef6\u4f3a\u670d\u5668\u7684 user2 \u4f7f\u7528\u8005\u3002
mail user1@email.address
mail user1@email.address user2
\u5c06 mail.txt \u7684\u5185\u5bb9\u5bc4\u7ed9 user2 \u540c\u65f6 cc \u7ed9 user1 \u3002\u5982\u679c\u5c06\u8fd9\u4e00\u884c\u6307\u4ee4\u8bbe\u6210 cronjob \u5c31\u53ef\u4ee5\u5b9a\u65f6\u5c06\u5907\u5fd8\u5f55\u5bc4\u7ed9\u7cfb\u7edf\u4f7f\u7528\u8005\u3002
mail -s \u6807\u9898 -c user1 user2 < mail.txt<\/p>\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

\u540d\u79f0 : crontab \u4f7f\u7528\u6743\u9650 : \u6240\u6709\u4f7f\u7528\u8005 \u4f7f\u7528\u65b9\u5f0f : crontab [ -u user ] fi<\/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-142","post","type-post","status-publish","format-standard","hentry","category-6"],"_links":{"self":[{"href":"https:\/\/3v.org.cn\/index.php?rest_route=\/wp\/v2\/posts\/142","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=142"}],"version-history":[{"count":0,"href":"https:\/\/3v.org.cn\/index.php?rest_route=\/wp\/v2\/posts\/142\/revisions"}],"wp:attachment":[{"href":"https:\/\/3v.org.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=142"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/3v.org.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=142"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/3v.org.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=142"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}