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#!/bin/sh
# turn shadow passwords on or off on a Debian system
set -e
shadowon () {
set -e
pwck -q -r
grpck -r
pwconv
grpconv
chown root:root /etc/passwd /etc/group
chmod 644 /etc/passwd /etc/group
chown root:shadow /etc/shadow /etc/gshadow
chmod 640 /etc/shadow /etc/gshadow
}
shadowoff () {
set -e
pwck -q -r
grpck -r
pwunconv
grpunconv
# sometimes the passwd perms get munged
chown root:root /etc/passwd /etc/group
chmod 644 /etc/passwd /etc/group
}
case "$1" in
"on")
if shadowon ; then
echo Shadow passwords are now on.
else
echo Please correct the error and rerun \`$0 on\'
exit 1
fi
;;
"off")
if shadowoff ; then
echo Shadow passwords are now off.
else
echo Please correct the error and rerun \`$0 off\'
exit 1
fi
;;
*)
echo Usage: $0 on \| off
;;
esac