Is it possible to have consecutive or operators in bash?

Question

Currently I have

if [[ $INPUT_FILE == *".aac" ]] || [[ $INPUT_FILE == *".aiff" ]] || [[ $INPUT_FILE == *".pcm" ]]

I have tried the following, which does not work. It does not match anything.

if [[ $INPUT_FILE == *".aac" || *".aiff" || *".pcm" ]]

Is there any way to factor this expression?

@RenaudPacalet well I mean it doesn't work. I was just trying to give the idea of what i was looking for — Joey Joestar
– Joey Joestar, Commented Nov 18, 2021 at 15:30

score 6 · Accepted Answer · 2021-11-18 15:51:40Z

6

With [[ you could use a regex (specifically, an Extended Regular Expression)

if [[ $input_file =~ \.(aac|aiff|pcm)$ ]]; then
  : something
fi

or an extglob

if [[ $input_file = *.@(aac|aiff|pcm) ]]; then
  : something
fi

Or you may use a case statement

case $input_file in
 *.aac | *.aiff | *.pcm )
   # anything
 ;;
esac

answered Nov 18, 2021 at 15:29

user14473238

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1 Comment

"extglob" patterns are documented in 3.5.8.1 Pattern Matching