newvers.sh

早期freebsd实现

#!/bin/sh -
#
# Copyright (c) 1984, 1986, 1990, 1993
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#	@(#)newvers.sh	8.1 (Berkeley) 4/20/94

if [ ! -r version ]
then
	echo 0 > version
fi

touch version
v=`cat version` u=${USER-root} d=`pwd` h=`hostname` t=`date`
echo "char ostype[] = \"4.4BSD\";" > vers.c
echo "char osrelease[] = \"4.4BSD-Lite\";" >> vers.c
echo "char sccs[4] = { '@', '(', '#', ')' };" >>vers.c
echo "char version[] = \"4.4BSD-Lite #${v}: ${t}\\n    ${u}@${h}:${d}\\n\";" >>vers.c

echo `expr ${v} + 1` > version