shell case statement example

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Linux Shell Programming

1) Unix command: Although any Unix command can be used in shell scripts, some more common commands are used. These commands are usually used for file and text operations. Common command syntax and functions: Echo"Some text": print the text on

Shell basic syntax

Shell basic syntax Basic shell Syntax:Like advanced programming languages, shell also provides instructions and functions for using variables.For shell, the value of all variables is a string, and the shell program uses $ VaRReference the value

Linux shell Process Control Statement instance explanation (if, for, while, Case statement instance) _linux Shell

A, Shell conditional statement (if usage) If statement structure [IF/THEN/ELIF/ELSE/FI] Copy Code code as follows: If condition test statement Then Action [Elif condition Action Else Action ] Fi If

Logical judgments in Linux shell scripts, file directory attribute judgments, if special usages, case judgments

Logical judgments in shell scripts Format 1:if condition; Then statement; Fi (Common) #以命令的方式表达[[email protected] ~]# for i in `seq 1 5`; do echo $i; done12345[[email protected] ~]# for i in `seq 1 5`> do> echo $i>

Linux Discovery Tour | Part V Lesson two: a shell deep like the sea, cool shell love

--book author Shenmon reprint please specify the source Content Introduction Objective What is a shell? Our first shell script Run the shell script Summarize Part V Third lesson preview: variable in hand, shell not

[Shell] example of if, for, while flow statement and integer string comparison, shellwhile

[Shell] example of if, for, while flow statement and integer string comparison, shellwhile Preface: In fact, Shell is a command interpreter that explains the commands entered by the user and sends them to the kernel. In addition, Shell has its own

Shell Q & A for Centos Operating System Programming

When we talked about the number of scripts being executed in CU a few days ago, we found that we knew little about how to execute commands in shell... thank you for your advice! In addition to being inaccurate in some places, his statement is

The old boy new book Shell programming actual combat scheduled to begin-Package parcel answer

Old boy new book Shell programming Real-time scheduled to start (scan the QR code to purchase the regular package of mail), dear friends, keep you waiting. Computer User Poke Computer Purchase linksNote: Package parcel post 3 months (after 2017

Logical judgment File directory attribute in shell script determine if special usage case judgment

I. Logical judgments in shell scriptsIn the shell script, many will logically judge, judge a certain value, judge a file, or a directory, we do some action against the result of the judgment, if there is no judgment, there is no way to do some

Bourne shell and shell programming (1)

Bourne shell Introduction: Bourne shell basics and many other useful features, shell programming and organization. Main content:Basic Introduction to. Shell, environment, options, and special characters. Shell variables User-Defined variables,

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