Bash Scripting with Get substring of String

Bash Scripting

 
In Linux, all tasks from execution of services to loading and unloading of modules are carried out by programs and all programs need to be executed. You use the commands to access all the basic features of kernel. Shell scripting is a way to automate such tasks, and bash is one of the language, that has capabilities enough to be called as scripting as well as a language that can be used for programming on the POSIX platform, for small tasks.  Bash Scripting else if statement

 

Get substring of String

Like other programming language, bash has no built-in function to cut value from any string data. But you can do the task of substring in another way in bash that is shown in the following script. To test the script, create a file named ‘substring_sub.sh’ with the following code. Here, the value, 6 indicates the starting point from where the substring will start and 5 indicates the length of the substring. Bash Scripting with Get substring of String

#!/bin/bash
Str="Learn Linux from HackingTruth"
subStr=${Str:6:5}
echo $subStr

Run the file with bash command.
 

 

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