Linux运维工程师常考命令.doc

Linux 运维工程师常考命令

目录

1 文件管理...........................................................................................................................................................6

1.1 basename........................................................................................................................................6

1.2 cat ...................................................................................................................................................6

1.3 cd.....................................................................................................................................................7

1.4 chgrp ...............................................................................................................................................7

1.11 diff.................................................................................................................................................13

1.12 dir..................................................................................................................................................14

1.13 dos2unix........................................................................................................................................16

1.14 egrep .............................................................................................................................................17

1.15 fgrep..............................................................................................................................................17

1.16 file .................................................................................................................................................17

1.17 find ................................................................................................................................................18

1.18 grep ...............................................................................................................................................20

1.19 head ..............................................................................................................................................22

1.20 Less................................................................................................................................................23

1.27 od ..................................................................................................................................................29

1.28 pwd ...............................................................................................................................................30

1.29 rename..........................................................................................................................................30

1.30 rm..................................................................................................................................................31

1.31 rmdir .............................................................................................................................................31

1.32 sed.................................................................................................................................................32

1.33 sort ................................................................................................................................................32

1.34 tail .................................................................................................................................................33

1.35 touch .............................................................................................................................................34

1.36 uniq ...............................................................................................................................................35

2.2 df ...................................................................................................................................................45

2.3 du ..................................................................................................................................................46

2.4 fdisk...............................................................................................................................................47

2.5 format ...........................................................................................................................................48

2.6 free................................................................................................................................................49

2.7 mount............................................................................................................................................50

2.8 umount..........................................................................................................................................55

3 压缩管理.........................................................................................................................................................57

3.1 bunzip2..........................................................................................................................................57

3.2 bzip2..............................................................................................................................................57

3.9 zgrep .............................................................................................................................................67

3.10 zip..................................................................................................................................................67

4 进程管理.........................................................................................................................................................69

4.1 crontab..........................................................................................................................................69

4.2 kill..................................................................................................................................................69

4.3 nohup............................................................................................................................................70

4.4 ps...................................................................................................................................................71

4.5 renice ............................................................................................................................................73

4.6 top.................................................................................................................................................74

4.7 who ...............................................................................................................................................74

5 网络管理.........................................................................................................................................................76

5.1 Curl................................................................................................................................................76

5.2 finger.............................................................................................................................................79

5.7 nslookup........................................................................................................................................87

5.9 rcp .................................................................................................................................................90

5.10 route .............................................................................................................................................90

5.11 tcpdump........................................................................................................................................91

5.12 telnet.............................................................................................................................................92

5.13 traceroute .....................................................................................................................................93

6 系统管理.........................................................................................................................................................95

6.1 cal..................................................................................................................................................95

6.2 cat .................................................................................................................................................95

6.3 chsh...............................................................................................................................................96

6.4 clear ..............................................................................................................................................96

6.11 groupdel......................................................................................................................................104

6.12 groupmod ...................................................................................................................................104

6.14 init ...............................................................................................................................................105

6.15 ipcs ..............................................................................................................................................106

6.16 mesg............................................................................................................................................108

6.17 passwd ........................................................................................................................................108

6.18 rpm..............................................................................................................................................109

6.19 service .........................................................................................................................................112

6.20 setup ...........................................................................................................................................112

6.21 shutdown ....................................................................................................................................113

6.22 su.................................................................................................................................................113

6.23 sync .............................................................................................................................................114

6.28 usermod ......................................................................................................................................117

6.30 wall..............................................................................................................................................119

6.31 write............................................................................................................................................120

例：basename include/stdio.h .h

Output "stdio".

1.1.2 选项

--help 显示此帮助信息并离开

--version 显示版本信息并离开

1.2 cat

1.2.1 功能说明

把档案串连接后传到基本输出（屏幕或加 > filename 到另一个档案）

1.2.2 语　　法

cat [-AbeEnstTuv] [--help] [--version] filename

cat -n textfile1 > textfile2 把 textfile1 的档案内容加上行号后输入 textfile2 这个档案里

cat -b textfile1 textfile2 >> textfile3 把 textfile1 和 textfile2 的档案内容加上行号（空白行不加）之后将内容

附加到 textfile3 里。