#! /bin/sh

# fnspaces -- replace spaces on file names 
# $Id: fnspaces,v 1.2 1998/07/10 19:12:28 cdua Exp cdua $ 
# Carlos Duarte, 971027/980709

#trap -- 'rm -f /tmp/xpto' EXIT SIGINT

USAGE="\
usage: $0 [-h] [-n] [-s seq] [-c c] files...

  -h      this help
  -n      no op
  -v      be verbose
  -r rpl  use rpl, as the replacing string, instead '_'
  -s spc  use spc, as the sequence to replace, instead ' ' 

replace spaces on filenames, per _ 
"

space=' '
repl='_'
while : ; do
	case x"$1" in 
	x-h)	echo "$USAGE"; exit 1 ;;
	x-n)	DONT=x ;;
	x-v)	VERB=x ;;
	x-r)	shift; repl="$1" ;;
	x-s)	shift; space="$1" ;;
	x--)	shift; break ;;
	x-?)	echo "invalid option -- `echo $1|cut -c2-`"
		echo "$USAGE"; exit 1 ;;
	*)	break ;;
	esac
	shift
done

## if _must_ accept on extra argument after options
#if test $# -eq 0; then echo "$USAGE"; exit 1; fi

for source
do
	case "$source" in 
	*"$space"*) 
		dest=`echo "$source" | sed "s/$space/$repl/g"`
		if test -f "$dest" ; then	
			echo warning: "$dest" already exists, skipping... 1>&2 
			continue
		fi
		test X$VERB != X && echo mv "$source" "$dest"
		test X$DONT  = X && mv "$source" "$dest"
		;;
	esac
done

#exit 0
exit