BASH List Possible Files and Select One

manpreet Best Answer 2 years ago

I want to be able to run a bash script, have it list possible files as options to select one, and then transfer that file via scp to a destination...

The scp part is no problem, but how do I get a list of the files and be able to select one is proving challenging for me...

$ ./script
Please select a file.
[0] ~/Desktop/ScreenShot-04-06-19-01:02:33.png
[1] ~/Desktop/ScreenShot-04-06-19-01:03:33.png
[2] ~/Desktop/ScreenShot-04-06-19-01:04:33.png
Enter File Index ID: 

manpreet 2 years ago

That's how I'd do in a bash script (would also work in a POSIX sh script):

echo 'Please select a s://forum.tuteehub.com/tag/file">file.'

n=0
for img in ~/Desktop/ScreenShot-*.png
do
    n=$((n+1))
    printf "[%s] %s\n" "$n" "$img"
    eval "img${n}=\$img"
done

if [ "$n" -eq 0 ]
then
    echo >&2 No images found.
    exit
fi

printf 'Enter File Index ID (1 to %s): ' "$n"
read -r num
num=$(printf '%s\n' "$num" | tr -dc '[:digit:]')

if [ "$num" -le 0 ] || [ "$num" -gt "$n" ]
then
    echo >&2 Wrong selection.
    exit 1
else
    eval "IMG=\$img${num}"
    echo Selected image is "$IMG"
fi