Shell

Due to work needs, often to connect the mobile phone and use the ADB to do some operations, found that the shell function is very good, but in castration state, the most obvious one is, the implementation of a number of commands, the directory

When you are using some commands, such as: LS, git, just met some requirements is to easily traverse all the directories and files, and then after the search, finally found a "magic" wildcard "* *" (two asterisks), after setting the bash globstar

$: Gets the file name of the currently executing script, including the path. [Root@test script]# Cat 0.sh#!/bin/bashecho $[Root@test script]# SH 0.sh0.sh[Root@test script]# Cat 0.sh#!/bin/bashDirName "$"BaseName "$"[Root@test script]#

A few days ago found that the site is not open, prompted the database connection error, I log on to Linux found Mysqld services do not know when to stop. Luckily, I even found out.So I decided to write a shell script to automatically detect the

Previously only heard DreamHost support shell, but not specifically used, mainly in the past is not very need, has not uploaded too many things. Recently because to upload a large number of files, suffering from the speed of optical cable can not

Introduced The grep command in a Linux system is a powerful text search tool that uses regular expressions to search for text and print matching rows. The grep full name is global Regular Expression Print, which represents the global regular

In general, use the "Telnet IP port" to determine the port pass, in fact, testing methods more than this one, there are many ways, the following small series to share several methods, the specific content please look down: Preparing the Environment

Quote: I have never written a shell script before, perhaps because of laziness, perhaps not being forced to write a shell. However, some time ago, the job requirement required a rerun of the script for a few months, which ran regularly every day,

Effect as shown: Copy Code code as follows: '============================ ' Enun Remote Cmdshell v 1.0 '============================ Option Explicit CONST account_lock_time = 600000 ' account lockout time, 10 minutesCONST

The shell is actually a command interpreter that interprets the commands entered by the user and sends them to the kernel. Not only that, the shell has its own programming language for editing commands, which allows the user to write a program

The color of the text terminal can be generated using the ANSI non-normal character sequence. Example: Echo-e "\033[44;37;5m ME \033[0m Cool" The above command sets the background to blue, the foreground is white, the blinking cursor, the output

#查找当前目录中是否存在指定目录, if it does not exist, it is created Copy Code code as follows: function mkdir_1 { if test! -D $ Then mkdir $ Fi } #指定文件中的 "prefix =. *" string replaced with "prefix=/home/gnome-unicore-install2/usr/

This article to introduce you to the very detailed, specific details please see below. Start the installation modify the/etc/inittab file first: Id:5:initdefault: To Id:3:initdefault: #vi/etc/inittab and restart the computer. The system

1. Automatic Ssh/scp method A is a local host (that is, a machine used to control other hosts);b is a remote host (that is, a controlled machine server), if IP is 192.168.60.110;Both A and B systems are Linux. To run a command on a:# ssh-keygen-t

This shell script is primarily used for initialization of newly installed Linux server systems, including: Turn off the IPV6 module Close SELinux Let vim display color Set System language encoding Optimizing System Services Kernel parameter

Script content: Copy Code code as follows: #!/bin/bash For IP in ' cat ip.lst ' Todo ./ssh.exp $ip >/dev/null 2&>1 Done nk= ' awk ' begin{bs=4000000}/access/{if ($1>bs) {Nk=nr-1;print nk}} ' Exp.log ' For NNK in $NK Todo

Sometimes you write scripts with errors that are listed like headings, mostly because your script files are edited under Windows. Windows, the end of each line is \n\r, and in Linux under the end of the file is \ n, then you edit the file in Windows

The script that prints the Java thread occupancy stack is invoked if the CPU occupancy rate continues to reach more than 80, see https://github.com/oldratlee/useful-shells/blob/master/ Show-busy-java-threads.sh, see his GitHub wiki! in concrete

Shell BasicsFirst, Shell Overview1) The Shell is a command-line interpreter that provides the user with an interface system-level program that sends a request to the Linux kernel to run the program, allowing the user to start, suspend, stop, or even

Nginx does not support using cronolog to rotate logs like Apache, but you can use the following methods to cut log files:Mv/data1/logs/access. log/data1/logs/20111030.logKill-USR1 Nginx master process numberUse the mv command to rename the log file