#!/bin/csh -f
#
#	Set file's timestamp to 24 hours ago.
#	(Based totally on touch-24.)
#
#	Written for MacOSX.
#	(Does not work on Solaris-10, where
#	date does not support "+%s" or "-r".)
#
#	Brent Chivers				2010 Jun 21

unalias *			# get other users' .cshrc stuff out of the way
 
set seconds = `date '+%s'`	# seconds since the epoch
@ yesterday = $seconds - 21600	# seconds 6 hours earlier (6 * 60 * 60)
set date = `date -r $yesterday '+%Y%m%d%H%M.%S'`	# convert seconds to touch string
touch -t $date $*		# touch all files with yesterday's date/time