A Bash Script to Read All Command Line Arguments into an Array: Simplify Argument Handling
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nixCraft: Linux Tips, Hacks, Tutorials, And Ideas In Blog Format (RSS/FEED) (
Vivek Gite
) to
All on Fri Jan 10 15:26:19 2025
I
f you are writing a Bash shell script, you should read command-line arguments into an array for some time. This allows us to process any number of arguments provided when the script is run. This makes the script adaptable to different use cases. Instead of dealing with fixed variables like $1, $2, $3, etc., you can work with any number of arguments more dynamically using bash for loop or bash while loop, depending upon your needs. Arrays make it simple to loop through each argument and perform operations on them, whether basic printing or complex processing. Bash provides a mapfile (readarray command) internal built-in command to read lines from a file into an array variable. Let us see how to use mapfile to read all command line arguments into an array.
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A Bash Script to Read All Command Line Arguments into an Array: Simplify Argument Handling
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