Bash: wildcard in argument expands to a filename [duplicate] - regex

Question

This question already has answers here:
When to wrap quotes around a shell variable?
(5 answers)
I just assigned a variable, but echo $variable shows something else
(7 answers)
Closed 4 years ago.
This is my script:
#!/bin/bash
set -x
arguments="some explanation"
if [[ $1 == -f ]]; then
exiftool '-FileName<DateTimeOriginal' -d "%Y-%m-%d %H,%M,%S.%%e" "$2"
elif [[ $1 == -d ]]; then
exiftool -d %Y-%m "-directory<datetimeoriginal" "$2"
elif [[ $1 == -fd ]]; then
exiftool '-FileName<DateTimeOriginal' -d "%Y-%m-%d %H,%M,%S.%%e" "$2"
exiftool -d %Y-%m "-directory<datetimeoriginal" "$2"
elif [[ $1 == -p ]]; then
exiftool '-FileName<DateTimeOriginal' -d "%Y-%m-%d.%%e" "$2"
else
echo -e $arguments
fi
set +x
If I run exifrename -f . it renames all files in the current folder. But let's say I have the following 3 files:
IMAG01234.jpg
IMAG01235.jpg
Ralph at home.jpg
and with them I run `exifrename -f IMAG*. It only renames one IMAG file.
When I debug this script, I see this:
+ [[ -d == -f ]]
+ [[ -d == -d ]]
+ exiftool -d %Y-%m '-directory<datetimeoriginal' IMAG01235.jpg
What can I do make the last line say IMAG* and not IMAG01235?

Answer 1

When you are doing IMAG*, then the bash shell does globbing and expands IMAG* to 2 files and passes them as arguments to your script. You need to iterate through all the command line arguments:
Example:
#!/bin/bash
option="$1" # this contains -f, -d, or something.
shift 1
for filename in "$#"; do
ls -al "$filename" # Just an example. But you get the point.
done
In your case, you could do the following assuming, that there would be always be one option and followed by list of files.
option="$1"
shift 1
for filename in "$#"; do
if [[ "$option" == '-f' ]]; then
exiftool '-FileName<DateTimeOriginal' -d "%Y-%m-%d %H,%M,%S.%%e" "$filename"
elif [[ "$option" == '-d' ]]; then
exiftool -d %Y-%m "-directory<datetimeoriginal" "$filename"
elif [[ "$option" == '-fd' ]]; then
exiftool '-FileName<DateTimeOriginal' -d "%Y-%m-%d %H,%M,%S.%%e" "$filename"
exiftool -d %Y-%m "-directory<datetimeoriginal" "$filename"
elif [[ "$option" == '-p' ]]; then
exiftool '-FileName<DateTimeOriginal' -d "%Y-%m-%d.%%e" "$filename"
else
echo -e $arguments
fi
done
Note: If you comfortable with bash scripting, it is more readable to do with case/esac instead of bunch of if/else.