77 lines
2.3 KiB
Bash
77 lines
2.3 KiB
Bash
#!/bin/bash
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## shell常用命令 2016-11-03
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## http://www.aqzt.com
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## email: ppabc@qq.com
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## robert yu
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## centos 6和centos 7
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简单的比如如何查看apache进程数
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[root@localhost fd]# ps -ef|grep httpd|wc -l
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1
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如何统计apache的每秒访问数？
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tail access_log | awk '{print $1,$4}'
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[root@localhost logs]# grep -c `date -d '3 second ago' +%T` access_log
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0
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2、将一个文本的奇数行和偶数行合并，第2行和第3行合并
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[root@localhost bin]# cat 1
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48 Oct 3bc1997 lpas 68.00 lvx2a 138
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484 Jan 380sdf1 usp 78.00 deiv 344
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483 nov 7pl1998 usp 37.00 kvm9d 644
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320 aug der9393 psh 83.00 wiel 293
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231 jul sdf9dsf sdfs 99.00 werl 223
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230 nov 19dfd9d abd 87.00 sdiv 230
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219 sept 5ap1996 usp 65.00 lvx2c 189
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216 Sept 3zl1998 usp 86.00 kvm9e 234
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[root@localhost bin]# sed '$!N;s/\n/ /g' 1
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48 Oct 3bc1997 lpas 68.00 lvx2a 138 484 Jan 380sdf1 usp 78.00 deiv 344
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483 nov 7pl1998 usp 37.00 kvm9d 644 320 aug der9393 psh 83.00 wiel 293
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231 jul sdf9dsf sdfs 99.00 werl 223 230 nov 19dfd9d abd 87.00 sdiv 230
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219 sept 5ap1996 usp 65.00 lvx2c 189 216 Sept 3zl1998 usp 86.00 kvm9e 234
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[root@localhost bin]# sed -n -e 2p -e 3p 1|sed '$!N;s/\n/ /'
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484 Jan 380sdf1 usp 78.00 deiv 344 483 nov 7pl1998 usp 37.00 kvm9d 644
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3、read 命令5秒后自动退出
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[root@localhost bin]# read -t 5
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4、自动ftp上传
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#!/bin/sh
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ftp -n<<END_FTP
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open 192.168.1.4
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user codfei duibuqi //用户名codfei 密码duibuqi
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binary
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prompt off //关闭提示
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mput test //上传test
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close
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bye
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END_FTP
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自动ssh登陆 从A到B然后再到c
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#!/usr/bin/expect -f
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set timeout 30
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spawn sshcodfei@B
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expect "password:"
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send "pppppp\r"
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expect "]*"
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send "sshcodfei@C\r"
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expect "password:"
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send "pppppp\r"
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interact
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5、#打印第一个域
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[root@localhost bin]# cat 3
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eqeqedadasdD
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eqeqdadfdfDD
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fdsfdsfQWEDD
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DSADASDSADSA
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[root@localhost bin]#
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[root@localhost bin]#
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[root@localhost bin]# awk -F "" '{print $1}' 3
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e
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e
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f
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D
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6、实现字符串翻转
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[root@localhost bin]# cat 8
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qweqewqedadaddas
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[root@localhost bin]# rev 8
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saddadadeqweqewq
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