print echo

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Daily operations Work Shell script case

1, list_sys_status.shDisplays the following information used by the system:Host name, IP address, subnet mask, gateway, DNS server IP address information#!/bin/baship= ' Ifconfig eth0 | head-2 | Tail-1 | awk ' {print $} ' | Awk-f ":" ' {print $} 'zw=

Linux bulk modifies host names for multiple servers (hostname)

One. Scenario Description:There are a lot of servers in an environment, each server hostname are different, there are hundreds of servers, if one by one through SSH modification, then for us, the workload is very large, and inefficient, and this

Simple scripts for monitoring Linux systems

I first paste the script here, convenient for everyone to watch, which is also borrowed from a lot of other big God things, this script is mainly used to monitor the server, users, logs, but also to create backups, and so on. Recently learned shell

Linux boot script output pid

Recently in the server tuning process found that the original script is not suitable for the present, so a different way to get.Startup script:#!/bin/bash#PATH =/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin#export PATHJava_home=/

Shell Programming Basics

For C in a B C D E F g;do echo $c; Done sequentially outputFor C in a B C D E F g;do tar czvf install.log. $c. tar.gz Install.log; DoneFor C in {a.. g}; do echo $c; Done the same as aboveSeq 1 10 columns of numbersFor i in {1..10}; do echo $i;

Common commands and statements for Shell programming (scripting)

some common shell programming (script) commands and statements can be used to meet general requirements. command parameters Received: Number of parameters: $# Parameter values: The command itself: $ A first parameter: $ $

Monitoring Linux system CPU hard disk network IO and other resource scripts

This script is to monitor all aspects of the system resources, need to change a little, if the network card is not correct, slightly modified, the mailbox to write their own 163 mailbox, the default is an hour to send an email to the mailbox, the

Linux Operations Common knowledge (4)

The Linux command is invalid-bash:ls:command not foundAfter a reboot, all basic commands are unavailable and only a few commands are available[email protected] ~]# LL-bash:ls:command not found[Email protected] ~]# pwd/root[Email protected] ~]#

Synchronizing Windows and Linux files with Python

Tag: Service disconnected name with success failure MD5 Code DirectThe purpose of writing a Python script, every time after the Windows edit the file, want to sync to Linux, only to log on to the server, and then use the network copy, the repetition

<shell> iterative reading of Redis to solve data instability problems

problem background : PHP reads the REDIS data on the line, which is often unstable, and the data response is sometimes not.workaround : Read multiple times and read all the last unread data until you get it all.This article implements multiple Redis

Introduction to Linux shell and expect dead

1.1 Shell some small summary1, 0 wide assertion 2, Print menu 3, getopts option Introduction 4, script query IP geolocation1.1.1 grep zero-width Assertions (0 wide assertion)It means taking out what you want and getting rid of things you don't care

echo of Shell Base command

the function of the echo command is to display a piece of text on the display, which generally acts as a hint. the general format of the command is: Echo [-n] string where option n means that the output text is not wrapped, the string can be quoted,

LINUX/HP Unix/aix daily Patrol script

The following is LINUX/HP Unix/aix daily patrol script, you can refer to the rewrite, for their own server.#!/usr/bin/kshSyserrdate= ' date + '%m/%d 'Errcount=0status=Hosts= ' hostname 'Script= ' basenameReport= "/tmp/report.txt"#FS

Shell Learning Condition test (refer to Shell scripting tricks)

1 about test testing, see the man documentationThe judgment of an expression(EXPRESSION) #EXPRESSION is True! EXPRESSION #EXPRESSION is FalseExpression1-a EXPRESSION2 #both is true,-o means orWhether the string is empty, equal-N string #the length

Shell case study on the three-generation random number seven ways

first, the questionit is sometimes necessary to use random numbers under the shell to summarize the method of generating random numbers. The computer produces only "pseudo-random numbers" and does not produce absolute random numbers (which is an

Linux system forced free cache causes database system crashes crash instance

This is a case of a client that was processed 1 months ago, which is roughly the first time a certain RAC node instance was restarted, with alert log we can find that the node 2 instance of the RAC cluster has been forcibly terminated, as follows

Linux Shell Learning Notes fourth Day _ other

The script for this lesson is also shared in the share. Day Fourth: Circular structure Content outline: application Example Analysis For loop While loop The principle of the For loop Achieve effect Modified according to yesterday's menu.

Dream dedecms Background HTML editor for Baidu editor method

Try a lot of code on the Internet, finally found this section of success, to retain: The code is as follows Copy Code else if ($GLOBALS [' Cfg_html_editor ']== ' ueditor '){$fvalue = $fvalue = = "? ' ': $fvalue;$code = '

Install MongoDB database under Centos x64 bit

--Install MONGOOperating system for Centos x64Download the. tar.gz file at the official website The code is as follows Copy Code cd/data/Http://fastdl.mongodb.org/linux/mongodb-linux-x86_64-2.4.3.tgzTar zxf mongodb-linux-

Linux uses Sshpass to get information from multiple hosts

At the earliest time to do operation, the automation tools are not very hot, and the need for bulk execution will generally rely on pssh, sshpass+ scripts such as the implementation of the bulk of the demand. In 2012, there was a record of the SSH

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