Shell

centos6.0 is installed, many packages are not installed because a minimal installation is selected, so some commonly used commands are not supported, as follows:# SCP-bash:scp:command not found My solution is to find the package on the SCP on a

1. Methods of primitive violence Copy Code code as follows: mylinux:/home/zhanhailiang/public_html # Killall Nginx 2, gentle point of approachFinds the PID for the specified process and kill|kill-usr1 it off Copy Code code as

Description: The subscript for an array in the shell defaults to the 0 start 1, put the string in the array, get its length Copy Code code as follows: #!/bin/bash Str= "A B--n D" Array= ($STR) length=${#array [@]} Echo

Because the backstage input colleague, uploads the file the time, to file the same name, but different suffix name, because the file path is very deep, about 10 layers, each layer has dozens of files, so manually find a very troublesome, so write a

Use shell script to compute the Linux NIC traffic, the most critical point in the method: Copy Code code as follows: Ifconfig $eth _name | grep bytes | awk ' {print $} ' | Awk-f: ' {print $} ' The flow of input and output is

Copy Code code as follows: #!/bin/bash Declare gw= ' Route-n | Grep-e ' ^0.0.0.0 ' Declare gwname= ' echo $GW | Grep-oe ' \w*$ ' Declare gwip= ' echo $GW | Grep-oe ' [0-9]\{2,3\}\. [0-9]\{1,3\}\. [0-9]\{1,3\}\. [0-9]\{1,3\} '

1, File type introductionLinux systems mainly include the following seven types of files: D directory-normal file L Symbolic link s socket file B block device file c character device file p named pipe file 2, Regular expressionRegular expressions

This paper introduces several common Linux monitoring scripts, which can realize the automatic monitoring and alarming of host network card traffic, system condition, host disk space, CPU and memory usage. According to their own needs to write a

The first description of our configuration file, are similar format, if the intranet is 192.168.0.3, the extranet is 123.123.123.123, the configuration file is as follows: $db [' salver '] [' hostname '] = ' 192.168.0.3:3306 ';$db [' salver '] ['

The shell also has a real debug mode. If there are errors in the script "Strangescript", you can debug this: Sh-x Strangescript This executes the script and displays the values of all the variables. The shell also has a pattern that does not

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Shell script: 1, #! Shell that specifies script execution2, # Annotation3. command or grammatical structureecho "Input"Echo Output blank linePerform: 1. Shell ScriptSH Example2, to the shell script execution permissionschmod U+x ExampleCase:

Port forwarding under Windows is typically a self-contained NAT and Porttunnel, Portmap Linux Lower port forwarding mapping program called RINETD, boot method rinetd-c/etc/rinetd.conf, Pkill rinetd shutdown process Tools Home:

First, receive the fixed length of the parameter Copy Code code as follows: [Root@svn shell_example]# Cat params.sh #!/bin/bash #传参测试脚本 echo "My name is ' basename $ ' I ' called as $" echo "My I-parameter is: $" echo "My

Process state variables 1, $$ get the current shell process number (PID)2, $! executes the PID of the previous instruction3, $? Gets the return value that executes the previous command (0 is a success, Non-zero is a failure, this is very common)4. $

1. Show the top 10 processes consuming memory/cpu Copy Code code as follows: PS aux | Sort-nk +4 | Tail PS aux | Sort-nk +3 | Tail 2. View process Arrange by memory from large to small Copy Code code as follows:

The most recent script always needs to be computed, and every time awk is cumbersome, it encapsulates the subtraction of awk, and each time the direct source math.sh is invoked.There are some points to be pointed out so as not to forget in future

The process is written in a script, the principles are written in the comments, you understand. One-click operation is sudo bash xxx.sh Copy Code code as follows: #!/bin/bash #cd到临时目录创建配置文件 Cd/tmp (Cat Setoutputfilter

Demand I wrote this script two days ago when I met the need to extract a file in a 10-story folder. A file structure like the following: Copy Code code as follows: Dir1 ├──a │├──b ││└──file1 │└──file2 ├──c │└──d │├──e

INI file format is generally composed of sections, keys, values of three parts Format: [Section I.]First key = valueSecond key = second value[Section II]First key = Val1,val2,val3Example: Copy Code code as follows: [COM] Kinggoo =