[SOLVED] Bash: script with getopts and file globbing?

narcissus256 · 11-28-2020, 11:09 AM

Hi,

I am trying to write a script where I need to get an input from a user from getopts.
That wouldn't be a problem, but I also need the user to select any number of files which the script should process.
Let's say that a command should look like this:

Code:

mp3tag -a "Artist name" -t "Song title" -n "Track number" *.mp3

How can I ensure that my mp3tag script understands file globbing? I have been scripting for a while, but can't get over this obstacle. Thank you!

shruggy · 11-28-2020, 11:19 AM

Shell itself understands globbing. Just shift each processed parameter.

Quote:

When the end of options is encountered, getopts exits with a return value greater than zero. OPTIND is set to the index of the first non-option argument, and name is set to ‘?’.

narcissus256 · 11-28-2020, 11:25 AM

Yes, shifting parameters is surely a possibility. But what if a user decides to just specify the "Song title"? The parameters would be shifted too far, into the actual filenames.

shruggy · 11-28-2020, 11:34 AM

See examples in BashFAQ.
Edit. Wrong link.

narcissus256 · 11-28-2020, 01:31 PM

Great, thank you!