Shell

#!/bin/bash # Check if the 192.168.1.1-192.168.1.254 host is aliveFor IP in 192.168.1. {1..254};DoIf ping-c 1 $ip >/dev/null; Thenecho "$ip OK."Elseecho "$ip no!"FiDone#!/bin/bash #检查多个域名是否可以访问Url= "www.baidu.com www.sina.com www.jd.com"for URL in

Test documents:[email protected] shell-script]# cat Text1.txt12345[email protected] shell-script]# cat Text2.txtOracleMysqlPostgreSQLHadoopSparkUsing Paste stitching text1.txt text2.txt file contents:# paste Text1.txt text2.txt1 Oracle2 MySQL3

Http://www.1987.name/141.htmlShell Basics Terminal printing , arithmetic operations , frequently used variables Search for a specific string under the specified folder and highlight matching keywords under Linux Get standard input from a

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=

---------Transferred from http://www.runoob.com/linux/linux-shell-array.html----------Copyright belongs to the original! Shell some powerful commandsShare some shell usages and scripts that you may not know about, simple & powerful!Before reading

OneHttp://www.cnblogs.com/GarveyCalvin/p/4301235.htmlTwoForeword: Zsh can be configured strong, user can customize the configuration, personalization is strong. Zsh Tab Completion is more powerful, this feature allows us to save a lot of time. Zsh

Test command, Loop statementTest command format:Test conditionUsually, in the If-then-else statement, [] instead, that is, [condition]. Note that there are spaces on both sides of the square brackets.Common commands:-a two conditions at the same

Shell Authoring Steps:1. Scripting Vim first.sh2. Write the complete test script Bash-n first.sh3. Granting permission chmod +x first.sh4. Execute the script./first.shPS Shell Script Learning first need to understand Linux, system commands and

shell script : hello.sh#!/bin/bashecho"I am in shell script"echo"param 1 is'echo'param 2is $"variable=$[$1 + $2 ]echo"sum is $variable"System Interface : SYSTEM.C#include void main (void) { printf ("I am in C code!\r\n" System ("/bin/bash"). /

http://blog.csdn.net/lishuhuakai/article/details/11928055#include #include#include#defineMAXLINE 80voidSetup (CharInputbuffer[],Char*argv[]) { intI, J; Char*p; I=0; for(p = inputbuffer;;p + +)/*Splits the character command for a period of time,

#!/bin/SH for((i=0; i -; i=i+1)); Do# Use the spider to detect if the requested resource exists and write the result of the request to a

Find File LookupFind txt and PDF filesFind. \ (-name "*.txt"-o-name "*.pdf" \)-printFind files that start with all lettersFind. -name "[a-a]*"Find all non-txt text with negative parametersFind. ! -name "*.txt"-printSpecify the search depth to print

DevelopmentShellscripts are implemented with script arguments , respectively, andReadRead inthe way to compare2an integer size. Use conditional expressions (prohibitif) and remind the user to compare the results in the form of a screen output. Note:

Have you ever felt that it's hard to write a long, absolute path when executing a script, to make it easy and easy to write your own script and start your footsteps as if you started Apache. (PS: Actually Apache is also a script)First, to understand

Time limit:16000/8000 MS (java/others) Memory limit:65536/65536 K (java/others)Total submission (s): 999 Accepted Submission (s): 434Problem descriptionperhaps The sea ' s definition of a shell is the pearl. However, in my view, a shell necklace

#!/usr/bin/Envbash## Licensed to the Apache software Foundation (ASF) under one or More# contributor license agreements. See the NOTICEfiledistributed with# this work foradditional information regarding copyright ownership.# the ASF licenses

Use shell scripts to simply simulate simultaneous read and write operations to specific filesFormat of file contents:Field1, Field2, field3, Field4As a delimiter, but there are spaces. The script uses the following:

Standard input and output with standard error outputStandard input/The output is probably the most important concept in the design principles of software tools..His idea was to:The program should have a data source,Data Export(where are the data

Turn from:Linux shell ${} simple usageFor the sake of completeness, I'll use some examples here to illustrate some of the supernatural powers of ${}:Suppose we define a variable as:File=/dir1/dir2/dir3/my.file.txtWe can replace each other with ${}

Try{Process P=runtime.getruntime (). exec ("chmod 777/home/bomb/movetoy/webroot/a.sh" ); P.waitfor (); Process Pro= Runtime.getruntime (). exec ("/home/bomb/movetoy/webroot/./a.sh" +num); Pro.waitfor ();