2 if [ x
`pwd` = "x/etc" ]
4 echo Cannot operate directly on
\"/etc
\".
>&2
8 #make prototype for /etc/shadow
9 sed -e "s/:.*/:*:`expr $(date +%s) / 86400`:0:99999:7:::/" passwd
>shadow
11 #make prototype for /etc/gshadow
12 sed -e 's/:[0-9]\+:/::/g' group
>gshadow
14 #mark passwd and group files entries shadowed
15 sed -i -e 's/^\([^:]\+\):[^:]*:/\1:x:/' passwd group
17 echo Converted successfully.