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#!/bin/sh
# ce -- center text
usage() { echo usage: $0 [-cols] text ... 1>&2; exit 1; }
case "$1" in
-*) cols=${1#-}
[ "$cols" -gt 0 ] || usage
shift ;;
*) cols=`tput cols`
[ "$cols" -le 80 ] || cols=80
;;
esac
[ $# -gt 0 ] || usage
len=`echo "$@" | wc -c`
max=$(((cols - len) / 2))
i=0
while [ $((i++)) -lt $max ]; do
printf ' '
done
echo "$@"
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