#!/bin/sh
#
# highlight tool
#

# default color code
COLOR='1;33'

[ "$1" == "" ] && sed '' && exit
PATTERN="$1" && shift

[ "$1" != "" ] && COLOR="$1" && shift

CMD="sed 's/\("${PATTERN}"\)/\x1b["${COLOR}"m\1\x1b[0m/g'"
eval $CMD