BSD 4 release

[unix-history] / usr / src / cmd / vipw.sh

cp /dev/null /etc/vipw.lock
chmod 0 /etc/vipw.lock
ln /etc/vipw.lock /etc/ptmp > /dev/null 2>& 1
case $? in
0)
       trap '' 1 2 3 15
       vi /etc/passwd
       rm /etc/ptmp
       ;;
*)
       echo Temporary file busy, try again later.
       ;;
esac