Shell

Reads a file, assigns each row to an array of variables, and prints it out with a for loop Copy Code code as follows: #!/bin/sh I=1 sum= ' sed-n ' $= ' tmp.txt ' #计算文件的总行数 echo "$SUM" While Read line Todo arr[$i]= "$line"

Copy Code code as follows: #!/usr/bin/expect-f Set IPAddress [lindex $ARGV 0] Set passwd [lindex $argv 1] Set Timeout 30 Spawn ssh root@ $ipaddress #expect "Yes/no" #send "YESR" Expect "Password:" Send "$PASSWDR" Expect "]*" Send

The following script allows you to convert directories or file uppercase and lowercase letters as follows: Copy Code code as follows: #!/bin/sh #edit by Www.jb51.net # [: Upper:] [A-z] # [: Lower:] [A-z] # [:d igit:] [0-9]

1. Wscript.Shell (Windows Script Host Runtime Library) is an object, and the corresponding file is C:\WINDOWS\system32\ Wshom.ocx,wscript.shell is a component that the server system will use. Shell is the meaning of "shell", this object can perform

Today colleagues found that the internal server's hard disk space is not enough, there are many backups, I can not delete, and found a 320g hard disk mounted, want to later the shell script backup to the new hard disk, to make room for the old hard

1. Get the file name of the current script, including the path. Copy Code code as follows: #写一个测试脚本 Vim test.sh #内容如下 Dirname$0 Basename$0 #执行一下 bash$ (PWD)/test.sh #输出如下 /home/jane test.sh 2. $n get the

Components used to query IP addresses Copy Code code as follows: wget http://rfyiamcool.googlecode.com/files/nali-0.1.tar.gz Tar zxvf nali-0.1.tar.gz CD nali-0.1 ./configure && make && make install The steps and Nginx are

The company has several servers running multiple memcached processes, in addition to monitoring their normal telnet, the existence of an instance to monitor their cache hit rate. Alarm for their cache hit rate. There's a Perl written on the web

Task ScheduleCrontab-l1 * * * */home/dongnan/sh/split.sh >>/home/dongnan/sh/cron.log 2>& Nginx Logls/var/log/nginx/20130730-access.log.gz 20130801-access.log.gz 20130803-access.log.gz20130730-error.log.gz 20130801-error.log.gz 20130803-error.log.gz2

The first 8 bits of a character variable are intercepted by the Linux shell, with the following methods: Copy Code code as follows: 1.expr substr "$a" 1 8 2.echo $a |awk ' {print substr (, 1,8)} ' 3.echo $a |cut-c1-8 4.echo $ 5

The first chapter skips, the bottom starts from the second chapter, everybody understands.PS: Here is a very important thing when my egg hurts, very! Already code article code to the fourth chapter, the tragedy of the wrong browser button to refresh,

Copy Code code as follows: #include #include int main () { Char castdoutline[1024]; One line of information in the standard output of the PS command char* pctmp = NULL; A string that points to a space split Char caselfpid[10]; PID

Copy Code code as follows: #include #include #include #include int main (int argc,char **argv) { int mode; int Mode_u; int mode_g; int mode_o; Char *path; if (argc{ printf ("%s \n", argv[0]);; Exit (0); }

There are two uses, one is lazy do not have to submit code, the second is used on the remote server for regular backups. Copy Code code as follows: sudo gedit/etc/crontab When you open it, join the line. Copy Code code

1. The problem addressed When you need to enter many commands at once, for example, to remove files from multiple directories at once Copy Code code as follows: CD Dir1 RM file1.temp Cd.. /.. /dir2 RM-RF Dir3 When you

Recently encountered a problem: The machine mail queue is always stuffed, but do not know where to send mail written, very egg pain, no way, only temporary treatment, wrote a delete mail script rm_mqueue.sh. Copy Code code as follows:

The security and stability of the server is the goal that every operational dimension wants to achieve, after all, once the site traffic is big, visit high, there will be some boring people to attack, to help detect the loophole is good, but the

To get the absolute path of the executing program/script itself, you can use DirName (Realpath (__file__) in PHP, and C # has System.Windows.Forms.Application.StartupPath; Java does not seem to have any more direct method, can only use Codesource to

Here is a brief description of a bash script that you wrote to detect if a process exists. directly on the code. Copy Code code as follows: #!/bin/bash ps_out= ' Ps-ef | grep $ | Grep-v ' grep ' | Grep-v $ ' result=$ (echo $ps _out |

Set exers = objWS. Exec ("Pscp-r-scp-pw" & Password & "" & loginID & "@" & Host & ":" & Data_path & Filen Ame & "" & Windows_path)But inTestOfWhenWait, be handcuffed.BayesianThe file thanMoreBig, cuff.Longer shell timeOfWhenWait on theIsCmdWindow