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File: [local] / src / usr.bin / compress / zmore (download)

Revision 1.7, Wed May 7 21:42:50 2014 UTC (10 years ago) by zhuk
Branch: MAIN
CVS Tags: OPENBSD_5_7_BASE, OPENBSD_5_7, OPENBSD_5_6_BASE, OPENBSD_5_6
Changes since 1.6: +3 -3 lines

When you want more, you say "more".  When you want less, you say "less".
When you don't get what you asked for, you get angry.
When you add a tiny bit, it should be "more" or "less" still,
  or you'll get angry.
So lets make zmore(1) call more(1) and zless(1) call less(1),
  as it's supposed to be.

okay and input from ingo@, no objections from author AKA millert@

#!/bin/sh -
#
# $OpenBSD: zmore,v 1.7 2014/05/07 21:42:50 zhuk Exp $
#
# Copyright (c) 2003 Todd C. Miller <Todd.Miller@courtesan.com>
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
#
# Sponsored in part by the Defense Advanced Research Projects
# Agency (DARPA) and Air Force Research Laboratory, Air Force
# Materiel Command, USAF, under agreement number F39502-99-1-0512.
#

# Pull out any command line flags so we can pass them to more/less
flags=
while test $# -ne 0; do
	case "$1" in
		--)
			shift
			break
			;;
		-*)
			flags="$flags $1"
			shift
			;;
		*)
			break
			;;
	esac
done

if [ `basename $0` == "zless" ] ; then
	pager=less
else
	pager=more
fi

# No files means read from stdin
if [ $# -eq 0 ]; then
	compress -cdf 2>&1 | $pager $flags
	exit 0
fi

oterm=`stty -g 2>/dev/null`
while test $# -ne 0; do
	compress -cdf "$1" 2>&1 | $pager $flags
	prev="$1"
	shift
	if tty -s && test -n "$oterm" -a $# -gt 0; then
		#echo -n "--More--(Next file: $1)"
		echo -n "$prev (END) - Next: $1 "
		trap "stty $oterm 2>/dev/null" 0 1 2 3 13 15
		stty cbreak -echo 2>/dev/null
		REPLY=`dd bs=1 count=1 2>/dev/null`
		stty $oterm 2>/dev/null
		trap - 0 1 2 3 13 15
		echo
		case "$REPLY" in
			s)
				shift
				;;
			e|q)
				break
				;;
		esac
	fi
done
exit 0