echo w1

Some of the simple scripts that you've knocked over and put them on the occasional look, it won't be long before you feel very pediatric, but it should be helpful to understand the process control of shell scripts.#!/bin/bashp=176.202.52.For I in $ (

This article mainly introduces examples of shell programmingFirst, the logical judgment if statement 1. Judging the age?[[email protected] 9_1 ]#cat iftest.sh #!/bin/bashread -p "Please input your age:" age ## 判断用户输入的必须是数字if [[ "$age" =~ ^[0-9]

'; Echo ' W1: ', write ($file, ' a '), ' |'; Echo ' R2: ', read ($file), ' |'; Echo ' W2: ', write ($file, ' B '), ' |'; Echo ' R3: ', read ($file), ' |';? > Results after the actual execution: R1: |w1:745|r2: |w2:404|r3: |

File read/write order question this post was last edited by o911016 from 2013-03-1312: 45: 07 & lt ;? Phpfunction & nbsp; read ($ filename) & nbsp; {$ fp & nbsp; fopen ($ filename, & nbsp; rb); flock ($ fp, & nbsp; LOCK_SH); $ dat file read/write

File read/write order question this post was last edited by o911016 from 2013-03-1312: 45: 07 & lt ;? Phpfunction & nbsp; read ($ filename) & nbsp; {$ fp & nbsp; fopen ($ filename, & nbsp; rb); flock ($ fp, & nbsp; LOCK_SH); file read/write sequence

Second-level forwarding: When a, B or C, D communicate with each other, they go is two-layer forwarding.The first step:A--> B. Because the source IP of the message and the destination IP are in the same network segment, it will be forwarded two

Home routing relay Others distant a tp-link to the Internet, but the distance is too far, often disconnected, the disconnection is not aware of the abnormal, so write a test script to determine whether to drop the lineMainly ping Superior

I. OverviewIn the previous chapter, we had an example of a script that detects if an IP address is online, but there is a problem, in the process of running, no matter Ctrl+c how to stop, and no egg, or continue to run, until the last IP address

WinXP, Win7, Win8 Copy codeThe Code is as follows: 'indicate the source for reprinting original content and referencing the core part of the code. Hard disk read/write statistics. vbs If (Lcase (Right (Wscript. FullName, 11) = "wscript.exe")

Shell script Programming "on"A program is a combination of instructions and data.Program Programming Style:Program: command-centric, data-serving instructionImage: Data-centric, command-serving dataProgramming Languages:Low Level: