Check if files can be safely removed, according to lsof

bleachcheck

#!/bin/sh
set -e

can_be_removed=""
keep=""
for x in * ; do
    if [ ! -f "$x" ] ; then
        continue
    fi
    if lsof "$x" > /dev/null ; then
        keep="$keep\n$x"
    else
        can_be_removed="$can_be_removed\n$x"
    fi
done

echo "# Can be removed"
echo $can_be_removed

echo
echo "# Don't touch!"
echo $keep