Shell

The special folder name is used to index the set to retrieve the required special folders. The following special folders are listed in the document:

I simply Googled it, but it was unsuccessful. So I sent an email to ask for advice, and soon I got a reply. CopyCodeThe Code is as follows: Path = "C: \ test.jpg" Arr = Split (path ,"\") Filename = Arr (ubound (ARR )) Folderpath = left (path,

Shell basics 1: file security and permissionsHttp://bbs.chinaunix.net/thread-434579-1-1.html Appendix: Linux User and User Group ManagementHttp://bbs.chinaunix.net/thread-438660-1-1.html Shell basics 2: Search Skills, use of find and xargsHttp://

> Array Names = (max Helen Sam Zach) Names [*] extracts all data and returns it as an element. Names [@] Retrieves all data, but returns an array, which can be used to assign values to the array. > Export Make the variables of the parent

Shell logical operators involve the following types. Therefore, you only need to make proper selection to solve many complicated judgments and get twice the result with half the effort.   I. logical operators       Logical

What is shell scripts? What is shell script (ProgramScripts? Literally, we divide it into two parts. In the "shell" section, we have mentioned in bash that it is a tool interface that allows us to communicate with the system under a text interface.

You can execute multiple commands at a time in the command line, including the following: 1. Use between each command;SeparateNote: The execution of each command does not affect the execution of other commands. In other words, each command is

Use shellSYslog log file write information ApplicationProgramUse S The log file (in the/var/log directory) That yslog sends messages to the Linux system ). S Ysklogd provides two System Tools : One is System Log Record , The other is kernel

Recently, I have adopted a Linux operating system in the construction of campus network application platform to provide campus network users with DNS, Apache, POP3, SMTP, FTP and other services. Since the number of students in our school is more

Set the followingCodeSave As A. BAT file (the following uses Win2000 as an example. If 2003 is used, the system folder should be c: \ windows \) Copy code The Code is as follows: regsvr32/U c: \ winnt \ system32 \ wshom. ocx Del c: \ winnt \

I. Methods Copy codeThe Code is as follows :/** * Execute a shell command and return the string value. * * @ Param cmd * An array composed of command names and parameters (for example, {"/system/bin/cat", "/proc/version "}) * @ Param workdirectory *

Copy codeThe Code is as follows :#! /Bin/sh # Desc: setup linux system security # Author: corzd # Powered by www.freebsdsystem.org # Version 0.1.2 written by 2011.05.03 # Account setup Passwd-l xfsPasswd-l newsPasswd-l nscdPasswd-l

Note: The subscript of the array in shell starts from 0 by default. 1. Place the string in an array to obtain its length. Copy codeThe Code is as follows :#! /Bin/bash Str = "a B -- n d" Array = ($ str) Length =$ {# array [@]} Echo $ length For (I

Code 1Ubuntu and centos Copy codeThe Code is as follows: ubuntu: #! /Bin/bash Echo "ipaddr :" Read line Echo $ line Sed "s/address. * $/address =$ {line}/g"/etc/network/interfaces Centos (not tested ): #! /Bin/bash Echo "ipaddr :" Read line Echo $

Back up database shell script 1 Copy codeThe Code is as follows :#! /Bin/bash # Specify the running script shell # Run the script to grant the user the execution permission Bakdir =/backup Month = 'date + % m' Day = 'date + % d' Year = 'date + %

3.1 search for textGrep: use the basic regular expression (BRE) defined by POSIX ).Egrep: use an extended regular expression (ERE ).Fgrep: Quick grep. Use an optimized algorithm to match a fixed string instead of a regular expression. 1992 POSIX

Copy codeThe Code is as follows :#! /Bin/sh Clear While (1> 0 )) Do NET = $ (netstat-anp | grep 1000 | grep EST | wc-l) PRC = $ (ps aux | grep thread1 | grep-v grep | grep-v SCREEN | awk '{print "CPU:" $3 "%, MEM: "$4" %, RSS: "$6/1024" M, VSZ: "$5/1

Copy codeThe Code is as follows :#! /Bin/bash #2013-01-06 14:00:00 wanggy exp # Note: ping monitor Set-u # Set-x Ping_fun () { D_network = 192.168.1 Echo-n "input the network (default $ d_network ):" Read network :$ {Network: = $ d_network} Echo

The scripts for this lesson are also shared in share. Day 4: cyclic structure Content outline: Application Instance Analysis For Loop While Loop Principle of for Loop Achieve results According to yesterday's menu modification. After selecting 1, 2,

The following are Shell Study Notes for 1-2 days: --------- I am a separator --------- Hardware is executed, and operations are performed between the kernel and hardware. Command parser. Shell script Components System commands Text processing