best shell scripting book

Shell Getting Started Tutorial (1)-shell-JUSTKK's Column-Blog channel-csdn.nethttp://blog.csdn.net/justkk/article/details/43795131 Shell Getting Started Tutorial (2)-Variables and Parameters-JUSTKK-Blog channel-csdn.nethttp://blog.csdn.net/justkk/article/details/44081993 Shell Getting Started Tutorial (3)-command edito

1. Linux Scripting Basics1.1 Basic Introduction to grammar1.1.1 StartThe program must start with the following line (must be placed on the first line of the file):#!/bin/shThe symbolic #! is used to tell the system that the parameters behind it are the programs used to execute the file. In this example we use/BIN/SH to execute the program.When you edit a good script, you must also make it executable if you want to execute the script.To make the script

but are not familiar with Perl. To use PHP as the Shell scripting language, you must compile PHP as a binary CGI instead of the Apache mode. PHP compiled to run in binary CGI mode has some security titles, for the solution, see The PHP Manual (http://www.php.net ). At the beginning, you may feel uncomfortable with writing Shell scripts, but it will be better: th

a set of core built-in commands and provides the ability to add additional command modules.Each command module provides another set of built-in commands for a particular scenario. For example, network support and advanced math, you can just add modules that you think are useful.The zsh shell is typically used in a programming environment because it provides a lot of good functionality for Shell

Shell Scripting Learning The shell is the command parser that converts the user-entered instruction into a program that the appropriate machine can run.The shell is a program that acts as an interface between a user and a Linux system, allowing the user to enter commands to be executed to the operating system, which c

) values in the script after the end of the script, still exist in the current shell, and SH and bash are not, so when doing shell scripting development. If there is a requirement in the script to refer to the contents of other scripts, or to configure the file, use the "." Dot or source to load the script or configuration file at the beginning of the script, and

]shell]#catfun1.sh#/bin/bashread-p "Please enter the network card:" networkip () {ifconfig $network |head-2|tail-1|awk -F ': ' ' {print$2} ' |awk ' {print$1} '}case $network ineth* ) echo "This is the Ethernet NIC," ipaddr= ' ip $network ' echo ' $network IP is: $ IPAddr ";; lo) echo "This is the loopback network card" ipaddr= ' ip $network ' echo "$network IP is: $ipaddr" ;; *) echo "You entered the incorrect, please new input!" ";; EsacExtended

Some good habits of shell scripting 1. Naming rules The script name ends with. SH, and names are as famous as possible. Here are a few of the script naming styles that are available for reference. Through the following fresh and refined style, readers can easily understand the role of the script.clearlog.sh clearlog.sh clearsql.sh snmp_install.sh monitor.sh 2.

2017 09:48:22 +0800from localhost [127.0.0.1]-----The following addresses had permanent fatal errors-----[email protected]>(reason:550 Failed to connect remote host.)-----Transcript of Session follows-----... while talking to mx3.qq.com.:... while talking to mx2.qq.com.:So the machine was restarted a bit. You can do it.[Email protected]:/var/mail$ Echo]20171204tete" | Mail-s "TEst2"Xcy[Email protected]:/var/mail$ Mail"/var/mail/xcy": 3 messages 1 new 2 unreadU 1 Mail Delivery Subs December 4 10

Bash's script preliminaryShell script: Another form of preserving historical commands;Shell script Programming:What do you mean by programming?Write the program source code.In order to enable users to use the computer, you can let the computer do some tasks in a non-interactive way, you need to make these tasks called a file, so that the computer read sequentially, so as to achieve the function;Programming Languages:Advanced Language:Depending on how

overwrite, the original number of filesAccording to LostC: Append the standard output to the file with >> attached to the program >> files to the endD: Piping "|", PROGRAM1 | Program2 the standard output of the PROGRAM1 as a standard input for PROGRAM2More than two programs can be linked together, but also greatly improve the speed of implementationEg:tr-d ' \ r ' Output to a file in the final sequence.(12) Special documents/DEV/NULL and/dev/tty 46This article is from the "Tabsang Growth Histor

9641716 1% /mysdcComplete.Shell Scripting AutomationAbove, we are using the Fdisk tool to interactively partition the hard disk. So how do we write it into Shell scripting automation. Look back at the sequence of operations that we just entered when we were interactively partitioning, and then read the following script yourself, too simple, nothing to say.#!

used with variable names, and if the loop body does not include a variable name, a dead loop may occurHow the list is generated:1) Give a direct2) List of pure integersSEQ: Output An integer listseq [First [INCREMENT]] Last3) curly braces unfold{first.. Last}4) return value of the execution result of the command5) GLOBBING6) references to certain variables: [email protected], $*Features of the For loop:1. There is almost no cycle of death;2. The entire list needs to be loaded into memory during

: Linux private dishes from brother BirdIn addition to using the test command to make conditional judgments, I can also use [] (the syntax of the brackets to judge the test parameters and tests).[] The syntax requires a space between all the quantities in [], eg:[B "$name" B==b "Xiaoyi" b] #b都表示空格Three Complex scripts3.1 Article Statementsif Else 's standard format:If [conditional judgment 1]; Then command1elif [conditional judgment 2]; then command2else Command3fiWhere conditions can be

Basics of Linux Shell scripting here we first talk about the shell of the basic syntax, the beginning, comments, variables and environment variables, to do a basic introduction, although not related to specific things, but lay the foundation is to learn easily after the premise. 1. Linux Scripting Basics Basic Introduc

be output to the monitor while redirecting files, but generally overwrite the original file content, you can use the-a append contentCode 5-23[Email protected]:/data# date | Tee Textmon Dec 5 06:18:04 CST 2016[email protected]:/data# cat text Mon Dec 5 06:18:04 CST 2016[email protected]: /data# who | Tee text root pts/0 2016-12-05 04:26 (122.90.143.21) [email protected]:/data# cat text root pts/0 2016-12-05 04:26 (122.90.143.21) [Email protected]:/data# date | Tee-a text

Shell script is similar to batch processing under Windows/dos, that is, the use of various commands pre-placed into a file, convenient one-time execution of a program file, mainly for the convenience of administrator settings or management. The advantage of scripting languages over Perl and Python is that it handles the underlying business because there are a lot of Linux commands to support, such as "Alarm

The experience of Shell scripting in developmentThis period of time in the development of a program, program output has a lot of logs. Sometimes you need to log to analyze the problem of the error. Separate viewing efficiency is too low to analyze anything. So I thought of the shell. Log files are on Android's phone!Development environment Fedora, MacOS.Mobile ph

makefile compiled files./configure--prefix=/usr/local/apache--with=/aa/cc--prefix Specify installation directory,--with specify dependent file directory2.make Compiling makefile FilesMake also needs to be installed, yum install Make,makec,makeg3.make InstallMake install copies the compiled files to the directory specified by--prefix, if not specified, is the current directoryLinux related directory file storage content:The bin is stored in a normal program and can be used by all usersBoot stora

$# The number of arguments passed to the script or function $*/[email protected] All parameters passed to the script or function. When enclosed by double quotation marks (""),[email protected] is slightly different from $* $$ The current shell process ID, which is the process ID for the shell script, which is where these scripts are located