A Bash Script to Read All Command Line Arguments into an Array: Simplify Argument Handling

If 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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How to write the output into the file in Linux

How do I write the output into the file in Linux bash shell? Can you explain I/O redirection for both bash and POSIX shell to write data to the file under Unix or Linux?

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Bash shell find out if a variable has NULL value OR not

I am a new to shell scripting. How do I check for NULL value in a Linux or Unix shell scripts?

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