4 practical examples with bash increment variable
How to increment variable in bash shell script? How to add 1 to a variable for every for loop? How to increment counter in bash? How to perform bash variable plus 1? In this tutorial ...
Shell Scripting
This covers topics and articles related to shell-scripting in Linux.
Beginners guide to use script arguments in bash with examples
How to pass and store arguments to shell script? How to parse input arguments inside shell script? How to pass arguments to a function inside shell script in bash? How to read command line arguments ...
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Simple guide to concatenate strings in bash with examples
How to concatenate strings with underscore, newline, whitespace or any other character in bash? How to append substrings in a string in bash or shell script? How to append starings in a variable using for ...
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Beginners guide to use getopts in bash scripts & examples
In this tutorial we will learn about getopts in bash or shell programming language. getopts is short abbreviation for "get the options" which you have supplied in the form of flags to the script. It ...
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Difference .bashrc vs .bash_profile (which one to use?)
We have different configuration files which are used to setup system wide configuration. But we always have some requirement to setup user specific customization such as umask, alias, PATH variable etc. In such case we ...
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How to properly check if file exists in Bash or Shell (with examples)
In this tutorial I will cover different attributes you can use in bash or shell scripting to check against files and directories. You can use bash conditional expressions with [[ ]] or use test with ...
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Bash if else usage guide for absolute beginners
I am quite sure in almost all the scripts we always end up with one or more conditional checks which requires if and else statement. So bash is not different and even in shell scripting ...
Bash Function Usage Guide for Absolute Beginners
New to bash or shell scripting? Let's start learning. Bash scripting can be considered the first step to learn programming languages. You may be in any IT stream but there will come a point in ...
Bash while loop usage for absolute beginners
Using bash while loop has it's own advantages compared to any other loops. How do you perform a certain task repeatedly in Linux or Unix environment? For example, how can you monitor a log file ...
Bash For Loop usage guide for absolute beginners
I get this question a lot from many users, how can I run a certain command in a loop for a defined period of time? Or how can we iterate a task over a range ...