Перекодирование текстов

Предлагается скрипт для перекодирования кириллицы между кодировками КОИ8, Windows, DOS, Mac и UTF8. Используется стандартная утилита iconv(1). Скрипт следует устанавливать с именами:

• koi-utf
• win-utf
• dos-utf
• mac-utf
• utf-koi
• utf-win
• utf-dos
• utf-mac

#!/bin/sh
#
# Copyright (C) 2009 Serge Vakulenko <serge@vak.ru>
#
# This file is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.
#
# You can redistribute this file and/or modify it under the terms of the GNU
# General Public License (GPL) as published by the Free Software Foundation;
# either version 2 of the License, or (at your discretion) any later version.
# See the accompanying file "COPYING.txt" for more details.
#
prog=`basename $0`

case "$prog" in
koi-*)	from="KOI8-R"		;;
dos-*)	from="CP866"		;;
win-*)	from="CP1251"		;;
mac-*)	from="MAC-CYRILLIC"	;;
utf-*)	from="UTF-8"		;;
*)	echo "$prog: unknown source encoding"; exit 0
esac

case "$prog" in
*-koi)	to="KOI8-R"		;;
*-dos)	to="CP866"		;;
*-win)	to="CP1251"		;;
*-mac)	to="MAC-CYRILLIC"	;;
*-utf)	to="UTF-8"		;;
*)	echo "$prog: unknown target encoding"; exit 0
esac

if [ $# = 0 ]; then
	tty=`tty`
	tty=`dirname "$tty"`
	if [ "$tty" = "/dev" -o "$tty" = "/dev/pts" ]; then
		echo "Change text encoding from '$from' to '$to'."
		echo "Usage:"
		echo "        $prog [filename...]"
		exit 0
	fi
	iconv -f "$from" -t "$to"
	exit 0
fi

tmp=./iconv$$.tmp
for file in $*; do
	iconv -f "$from" -t "$to" -o $tmp $file && mv $tmp $file
done