hace algo con archivos que parten un nombre base

do_stuff.sh

#!/bin/bash

if [ -z $1 ]; then
  echo "Usage: $0 imagefile-42"
    exit
fi

pages=4

file=$1
basename=${file%-*}
number=${file#*-}
end=$[number+pages-1]

echo "Your basename is \"$basename\" and your numbers go from $number to $end"

all_files=""

for i in $(seq $number $end); do
    current_file="$basename-$i"
    all_files="$all_files $current_file"
    echo "Do stuff with $current_file"
done

echo "Do stuff with $all_files and output file $file.output"