How do you use command substitution with an example?

Command substitution is a feature in Unix-like operating systems that allows you to capture the output of a command and use it as an argument in another command. This can be done using backticks (``) or the more modern $(...) syntax. The latter is preferred for its readability and ability to nest commands.

Command substitution, Unix, Bash, Shell scripting
Learn how to effectively use command substitution in shell scripts to enhance your command line capabilities and automate tasks.

Here is a simple example of command substitution in a shell script:

#!/bin/bash current_date=$(date) echo "Today's date is: $current_date"

Command substitution Unix Bash Shell scripting

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