Shell

Part 1: ' Command ' This is the "command standard output as a function of standard input" method of operation, there are great drawbacks and unsafe places. disadvantage one: relatively old. disadvantage two: easy to confuse with single quotes.

This is the 8th/101 script There are as many ways to solve this quirky echo problem as There are the pages in this book. One of my favorites is very succinct: function Echon { echo ' $* ' | awk ' {printf '%s ' $} ' } You could prefer to

The hosts one-click Deployment Script under Linux Environment, @lstoars contribution; @fluviusmagnus provides an enhanced version. Official website: https://github.com/racaljk/hosts/tree/master/hosts_tools #!/bin/sh # # Script_tool_for_linux #

Special folder names are used to index the collection to retrieve the special folders that are required, and the following special folders are listed in the document:

How to calculate the number of files and directories in the current directory # ls-l * |grep "^-" |wc-l----to count files # ls-l * |grep ' ^d ' |wc-l-----to Count dir How do I just column subdirectories? Ls-f | grep/$

#!/bin/bash # exctute #/mod.sh File_type input_folder Output_folder #/mod.sh Count I f [! $#-eq 3]; then echo "[ERROR] Error paramater." Exit Fi # File Type file_type= ' ${1} ' # input Foloder if [-d ' ${2} ']; Then folder= "${2}" Else echo

Shell string Comparisons, judging whether it's a number Binary comparison operator, comparing variables or comparing numbers. Note the difference between numbers and strings. Integer Comparisons -eq equals, such as: if ["$a"-eq "$b"] -ne is

[s005 you] # cat Haproxy_expect Copy Code code as follows: #!/usr/bin/expect Set Ssh_user "Fivetrees" Set Password "123456" Spawn ssh-i/root/.ssh/$ssh _user Server004.xd.com Expect_before "No"? { Send "yes\r"} Sleep 0.5

One, the definition function Copy Code code as follows: function fname () { statements; } Or Copy Code code as follows: FName () { statements; } Second, call function You can call a

Copy Code code as follows: #!/bin/bash #2013 -01-06 14:00:00 wanggy Exp #note:p ing Monitor Set-u #set-X Ping_fun () { d_network=192.168.1 Echo-n "Input" network (default $d _network): " Read Network : ${network:= $d _network} echo

First, create a expect script ssh_expect, which reads as follows: #!/usr/bin/expect-f set hostname [lindex $argv 0] set user [lindex $argv 1] set passwd [lindex $argv 2] s Et timeout set force_conservative 1 if {$force _conservative} { set

Here's the shell code:create_xml.sh Copy Code code as follows: #! /bin/bash #author: Dengzhaoqun#date: 201202/14 Outfile=outTabs=0 Put () {Echo ' ' >> $outfile} Put_head () {Put '? ' ${1} '? '} Out_tabs ()

Copy Code code as follows: #!/bin/sh # Get the first day of the quarter, the date interval to yesterday # link:www.jb51.net # DATE:2013/2/28 Day= ' date-d "1 days Ago" "+%y%m%d";year= ' expr substr ${day} 1 4 ';Month= ' Expr

Gets the length of the string Copy Code code as follows: Code: %x= "ABCD" #方法一 %expr length $x 4 # method Two %echo ${#x} 4 # method Three %expr "$x": ". *" 4 # Help for expr # String:regexp anchored pattern

Copy Code code as follows: #/bin/bash # History After #把以下代码直接粘贴到/etc/profile user_ip= ' who-u am I 2>/dev/null| awk ' {print $NF} ' |sed-e ' s/[()]//g ' Histdir=/var/log/.hist If [-Z $USER _ip] Then User_ip= ' hostname ' Fi if [!-D

Sign up for a system service to boot from. 1 Script Authoring #vim test.sh Copy Code code as follows: #!/bin/bash #description: hello.sh #chkconfig: 2345 20 81 exec_path=/usr/local/ exec=hello.sh daemon=/usr/local/hello.sh

Embedded beginners, the first time to upload code. Yesterday did a UDHCPD and Udhcpc Guardian, currently only with Shell imitation writing, what method can do guardian? #! /bin/sh #进程名字可修改 pro_name=udhcpc wlan=ra0 while true; # get

Sample Resources Listsuch as Url.txt: Copy Code code as follows: Http://su.bdimg.com/static/superplus/img/logo_white_ee663702.png Http://su.bdimg.com/static/superplus/img/logo_white_ee663703.png

#!/bin/bash##Read-p "Keyin Add or del:" KeyinFor i in ' seq-w ';d oPassword=user$i ' echo $RANDOM | md5sum | Cut-c 1-5 'Case $keyin inAddif! ID user$i &>/dev/null; thenUseradd user$i &>/dev/nullecho $password | passwd--stdin user$i &>/dev/nullecho

What is an app shell (app shell)The app shell is the most basic HTML, CSS, and JavaScript required for the application's user interface, and a component to ensure that the application has a lot of performance. Its first load will be very fast and is