Shell

This example is to start or close the remote MySQL database with Java shell script, demand reason: After the game server, in order to save memory consumption, need to shut down the server unnecessary database (a server host has multiple MySQL

Linux Server Batch Deployment application shell script:1. Please replace the server address (Tomcat or jetty server) within the codeserverroot=/home/undoner/java_tool/apache-tomcat-7.0.61Serverdir=/home/undoner/java_tool/apache-tomcat-7.0.61/webapps2

 1, creating table: Create ' t1 ', ' F1 ', ' F2 ', ' F3 '                   #-------T1 is the table name, F1,F2 , F3 is the column family name  2, view all tables: list 3, view the structure of the table: describe ' t1 '  4, add a column family:

/proc File Systemthe /proc file system in Linux consists of a set of directories and files , mounted ( Mount) with the /proc directory .The/proc file system is a virtual file system that provides an interface to the kernel data structure in the

How to use:Format 1:last-nN Specify the number of accounts, the latest first n login information (user, terminal, IP, date, time and duration)Format 2:last-n Purpose: In daily work, if you want to troubleshoot the most recent years who are or have

Read a file line For Command substitution Code block redirection While Pipe character Code block redirection ForIFS=$‘\n‘forin-l`do (( count++ ))doneecho$countNote:For read,

Bulk Replace directory/proc in script file, for/ETC/INIT.D[Email protected] course_04]# more test.sh #!/bin/bashdir=/procaa= ' ls $DIR ' echo $aa650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M02/6F/AD/wKiom1WktFCyF39TAAD5F48gmko076.jpg

recently debugging a MATLAB-based program, in the occasional found a few more interesting tricks, to share with you ( probably is too rookie, did not involve this aspect, the generous house does not have the laughed at, has the help to you to please

One. Chown commandThe "chown" command changes the owner of the file and the user group. Each file belongs to one user group and one user. In your directory, use "Ls-l" and you will see something like this.[Email protected]:~# ls-lDrwxr-xr-x 3 server

1. Truncation function file=dir1/dir2/dir3/my. file.txt ${file #*/}: Remove the first/its left string: dir2/dir3/my. file .txt${ file ##*/}: Take out the last/and left string: my.file .txt${ file #*.}: Take out the first. and its left string:

My original intention in this article was to remove the "copy SSH Channel" and "Copy ssh Session" functions from the remote SSH client. So I thought I could set it up on the SSH server, but looked at the Sshd_config man Manual, It is found that the

Write operations scripts through if statements and variables,A key to install the lamp environment of the script;A key source installation lamp script, the first decomposition of the various functions of the script;Print Menu:1) Install Apache Web

Shell type, version and selectionAnyone who uses *inx, whether as a loginThe shell is also programmed to touch the shell.After years ofDevelopment, a wide variety of shells. In addition to our familiar sh, ksh, CSH, bash ... , there are various free

Strictly speaking, there is no concept of an expression in the shell. The shell itself is really just a collection of commands, and of course it is not a random heap, but a certain organization. But this organization is not so rigorous, so this

Thinking: (1) get "." The I node number, called N (using stat)(2) ChDir. (using ChDir)(3) Find the node with inode number n and get its file name.Repeat the above operation until the current folder "." The inode value equals "..." The Inode

SED is a non-interactive text editor that can edit text files and standard inputSed simply edits a copy of the original file in the buffer and does not edit the original fileThree ways in which SED commands are invoked1. Call sed on shell command

http://blog.csdn.net/qyf_5445/article/details/8886071Custom variablesNo type distinction in bash variablesAa=abc123 define variables and assign values abc123Aa= defines an empty variable or empties the variable AA, but the variable still

Shell Script (vii)J, Array#关联数组: A generic array index must be a numeric value, and an associative array index can be a string#也可以是数值, similar to a Python dictionaryawk ' BEGIN {str[name]= ' string '; str[1]= "1"};p rintf ("%s\n%s\n", str[name],str[1

from:http://blog.csdn.net/engledb/article/details/19623087 Six, common examples1. P commandThe command p is used to display the contents of the pattern space. By default, sed prints the input lines on the screen, and option-n is used to cancel the

The Shell Case statement is a multi-select statement. A case statement can be used to match a value with a pattern, and if the match succeeds, the matching command is executed. The case statement is in the following format:The code is as