Unshadowing /etc/passwd

Question

I want to create a copy of /etc/passwd (another file name) that has been unshadowed. (/etc/passwd combined with /etc/shadow, not that the password is displayed in plain text) I know there are "utilities" out there that will do that, but is there a more propper way to do it?
I also assume I could write a script to do it, just looking for the way others do it.

Answer 1

Don't know if it is exactly what you are looking for, but here is a noddy script I write some time ago, when I couldn't get to admintool on a particular site. The screen output is formatted, whilst the file output isn't
hope it helps.
#!/usr/bin/ksh
# script: /usr/local/bin/pwstat
# date: 3/5/1999
# version: 1.0
# purpose: To dump to screen or file user details
# set initial ver.
clear
option=$1
rm /tmp/pwstat.* > /dev/null 2>&1
count=2
passwd -as > /tmp/pwstat.$$
# test switches
if [[ $option = screen ]] || [[ $option = file ]] ; then
continue
else
print "Valid Options are: screen or file, try again!"
exit
fi
if [[ $option == screen ]] ; then
tput smso
print "USERID: PASSWORD: UID: GID: COMMENT: HOME DIR: SHELL: PW Exp."
tput rmso
fi
if [[ $option == file ]] ; then
print "Enter filename for output:\c"
read filename
print "Writing output to $filename...."
rm $filename > /dev/null 2>&1
fi
# START OF SCRIPT LOGIC
while read user "att"
do
if [[ -n $user ]] ; then
uid=`grep ^$user: /etc/passwd | awk -F: '{print $3}'`
gid=`grep ^$user: /etc/passwd | awk -F: '{print $4}'`
com="`grep ^$user: /etc/passwd | awk -F: '{print $5}'`"
comm=${com:-NoComment}
hdi=`grep ^$user: /etc/passwd | awk -F: '{print $6}'`
shl=`grep ^$user: /etc/passwd | awk -F: '{print $7}'`
shell=${shl:-NoShell}
psw=`grep ^$user: /etc/shadow | awk -F: '{print $2}'`
if [[ $option == screen ]] ; then
tput cup $count 0
print $user
tput cup $count 12
print $psw
tput cup $count 30
print $uid
tput cup $count 37
print $gid
tput cup $count 45
print $comm
tput cup $count 60
print $hdi
tput cup $count 85
print $shell
tput cup $count 105
print $att
((count = count + 1))
elif [[ $option == file ]] ; then
print "$user\t $psw\t $uid\t $gid\t $comm\t $hdi\t $shell\t $att" >> $filename
fi
fi
done < /tmp/pwstat.$$