Bash Pass Shell Variables To Awk Script

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To pass shell variables to an awk script in Bash, you can use the -v option of the awk command. The -v option allows you to pass shell variables to awk.

Here’s an example of using the -v option to pass a shell variable to an awk script:

#!/bin/bash

# Define the shell variable
string="Hello World"

# Pass the shell variable to the awk script
echo "$string" | awk -v str="$string" '{print "The string is: " str}'

In this example, the shell variable string is defined as “Hello World” and is passed to the awk script as the awk variable str. The awk script then prints “The string is: Hello World”.

This is just a basic example, but you can use the -v option to pass multiple shell variables to an awk script and use them in more complex ways within the script.

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