On Fri, Nov 13, 2015 at 02:52:17PM -0500, Greg Reagle wrote: > Okay then. It no longer depends on xxd. It depends on od for the hex dump > (works with both GNU od and sbase od) and echo, awk, tr, cut for the reverse > hex dump.
> #!/bin/sh > [ -z "$1" -o -z "$2" ] && { echo "$0 infile outfile"; exit 1; } > [ -z "$EDITOR" ] && { echo "\$EDITOR must be defined"; exit 1; } > > tmpfile=$(mktemp) || exit 1 > infile="$1" > outfile="$2" > > od -Ax -tx1 "$infile" | head -n -1 > $tmpfile > $EDITOR "$tmpfile" > /bin/echo -ne $(tr -s ' ' < "$tmpfile" | cut -d' ' -f2-17 | awk '{for (i=1; > i<=NF; i++) printf "\\x%s", $i}') > $outfile > rm "$tmpfile" echo -e is evil, use printf(1)