A somewhat unnecessary script used to compress a folder into a 7zip archive with "ultra" settings.

7z-ultra-folder.sh

#!/bin/sh +x
die () {
  echo >&2 "$@"
  exit 1
}

[ "$#" -eq 1 ] || die "1 argument required, $# provided"
[ -e "$1" ] || die "$1 does not exist"

_cwd=`pwd`
_file=$( basename "$1" )
_ext=${_file##*.}
_shortname=$( basename "$_file" .$_ext )
_workdir=${_tmp}

echo "Compressing files..."
7za a -t7z -m0=lzma -mx=9 -mfb=64 -md=64m -ms=on "${_shortname}.7z" "$_shortname/"

echo "Done."