非常有用之Unix/Linux 單行腳本

火星人 @ 2014-03-24 , reply:0



刪除 core 文件

# find ~ -name core -exec file {} \; -exec rm -i {} \;

查看使用文件的進程

# fuser -u /usr/my_application/foo

搜索字元串

#grep "hello world" `find ./ -name "*" -print -exec file {} \; |grep text | cut -d ':' -f 1`

目錄

#alias dir='ls -Lla|grep ^d'

輸出 IP 地址

#ifconfig | grep "inet addr" | grep -v "127.0.0.1" | awk '{print $2;}' | awk -F':' '{print $2;}'

按文件長度排序

#ls -l | grep ^- | sort -nr -k 5 | more

#ls -lR | grep ^- | sort -nr -k 5 | more

二進位文件中的可列印字元

# strings name of binary file

一個月的最後一個星期天執行任務:

18 * * * 0 [`date "+%d"` -gt 24] && /path/to/script

修改擴展名:

# for f in *.abc; do mv $f `basename $f .abc`.def ; done

查看硬碟情況:(Solaris)

# iostat -En

整個目錄樹拷貝:

# cd

# find . -depth -print | cpio -pudm

按長度排序目錄下所有文件

# du -a | sort -n -r | more

檢查文件內每行是否有相同列數

#awk '{print NF}' test.txt |sort -nu|more

去除空行

#sed -e '/^[ ]*$/d' InputFile >OutputFile

查看進程佔用的對應文件 inode 號(Solaris)

#/usr/proc/bin/pfiles

刪除指定用戶的所有進程

# kill -9 `ps -fu username |awk '{ print $2 }'|grep -v PID`

Bash 操作快捷鍵:

ctrl-l —— clear screen

ctrl-r —— does a search in the previously given commands so that you don't

have to repeat long command.

ctrl-u —— clears the typing before the hotkey.

ctrl-a —— takes you to the begining of the command you are currently typing.

ctrl-e —— takes you to the end of the command you are currently typing in.

esc-b —— takes you back by one word while typing a command.

ctrl-c —— kills the current command or process.

ctrl-d —— kills the shell.

ctrl-h —— deletes one letter at a time from the command you are typing in.

ctrl-z —— puts the currently running process in background, the process

can be brought back to run state by using fg command.

esc-p —— like ctrl-r lets you search through the previously given commands.

esc-. —— gives the last command you typed.

文件名里的空格替換為下劃線

# for i in $1 ; do mv "$i" `echo $i | sed 's/ /_/g'` ; done

查看遠程主機時間

# telnet remotehostname 13|grep :

只顯示 top 命令的states 行

#while true; do top -d 2 | col -b | grep states; sleep 10; done

加速顯示 tar 文件內容

# tar tvfn

讓 目錄名也能 Spell Check

#shopt -s cdspell

當輸錯命令時,系統會自動進入類似的目錄

查看 Sun 伺服器型號

# /usr/platform/`uname -m`/sbin/prtdiag -v | grep `uname -m`

在vi 中一行文字前後添加字元

:/^\(。*\)/s//我要 \1 添加/

查找某包含字元串(Verita)軟體包的詳細信息 (Solaris)

pkginfo -l `pkginfo | grep -i VERITAS | awk '{print $2}'`

Sun 的一大堆腳本

http://www.sun.com/bigadmin/scripts/index.html



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