#!/bin/sh
# Strip an extension from the given filenames

# Check args
if [ "$#" -lt 2 ] ; then
    printf >&2 'Need an extension .ext and a filename\n'
    exit 2
fi

# Extension is first arg, shift it off
ext=$1
shift

# Iterate through the given files (remaining args)
for sn ; do

    # Strip trailing slash if any and then extension
    sn=${sn%/}
    dn=${sn%"$ext"}

    # Ignore this file if its name wouldn't change
    [ "$sn" != "$dn" ] || continue

    # Attempt a rename, flag an error if there was one
    mv -- "$sn" "$dn" || ex=1
done

# Exit with 1 if there was any failed mv(1) run
exit "${ex:-0}"