Bash Script: Flags Usage with Arguments Examples

If you have any experience on the Linux command line, then you should have run into command flags, which help us modify the behavior of a command that we are executing.For example, if we execute the ls -l command, the -l part of the command is a flag that we are passing as an argument to ls. This same functionality can be used in a Bash script, allowing us to pass some input to the script through flags when we are executing the script.

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Source: Linux Today