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Script to change password in UNIX

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Top Forums Shell Programming and Scripting Script to change password in UNIX
# 8  
Old 06-18-2014
What OS and version are you runnning? It really might make all the difference here.

You code contains this:-
Code:
echo -e "test123\test123" ........

What do you get if you run this on the command line? I get test123tabest123

I would also be surpised if passwd would let you feed in the new password like this anyway. It is probably designed to stop such things as they are generally considered to be a bad thing.

What do you plan to do with the file /home/home/raj/password/dateout.txt by the way? Rather than write a file and test it, how about:-
Code:
pswd_val=`grep "`date +"%d-%b"`" file.txt`
if [ "$pswd_val" != "" ]
then
   passwd --expire raj ........ etc.





Robin
# 9  
Old 06-18-2014
file.txt look like

cat file.txt
test123 18-Jun
abcd123 19-Jun

dateout look like

cat dateout
test123 18-Jun

I want to take out test123 from dateout file and use in

Code:
echo -e "test123\test123" | (passwd raj)

---------- Post updated at 12:27 PM ---------- Previous update was at 12:22 PM ----------

i am not able to run shows me error as want to use the passwd from dateout.txt...

ver:- 5.1
# 10  
Old 06-18-2014
You didn't specify the format of your password file (file.txt) so I'm guessing it will be like this:

Code:
18-Jun my-Secret
19-Jun dAily_user
20-Jun Pass:file

This should get the password out and send it to your passwd command - however on my OS passwd required the --stdin parameter and I still couldn't pipe the output to a file. What OS are you on? I'm sure there is better way to change passwords on your OS than piping them to the passwd command...

Code:
#!/bin/sh
CWD=/home/raj/Password
cd $CWD
rm -f result
DT=`date +"%d-%b"`
PASS=`grep "$DT" file.txt | cut -c8-`
if [ -n "$PASS" ]
then
  echo "Todays password is: $PASS"
  passwd --expire raj #EXPIRING THE PASSWORD
  printf "%s\n" "$PASS" "$PASS" | (passwd raj) > /home/raj/Password/out.log
else
  echo "No password for $DT"
fi
if egrep -iq '(Permission)|(successfully)' /home/raj/Password/out.log
then
   MAILTO="abc@abc.com"
   CONTENT="/home/raj/Password/out.log"
   (
        echo "Subject: Password Change Status "
        echo "MIME-Version: 1.0"
        echo "Content-Type: text/html"
        echo "Content-Disposition: inline"
        cat $CONTENT
   ) | /usr/sbin/sendmail -t $MAILTO
else
  echo "bbb"
fi

# 11  
Old 06-18-2014
Change while read pass into while IFS=$'\t' read -r pass date in his loop. That should be able to read the passwords from your password/date file.
# 12  
Old 06-18-2014
Ok you posted the format of file.txt while I was typing - can you change it to put the date first as then things are much simpler to get the password out, especially considering that the password could contain space characters
# 13  
Old 06-18-2014
Thanks Chubler...I am am having another issue I dont have admin rights to use
Code:
password --expire raj

is there any other way to expire the old password or implement it.

my verision is uname -a
SunOS 5.10 Generic
# 14  
Old 06-18-2014
I'm guessing your on ubuntu 5.1

Does this command work to change the password from the command line:

Code:
# usermod -p $(openssl passwd "test123" ) raj

If so you could replace the (passwd raj) line in the script above

Code:
usermod -p $(openssl passwd "$PASS" ) raj > /home/raj/Password/out.log 2>&1

---------- Post updated at 03:03 AM ---------- Previous update was at 02:59 AM ----------

OK SunOS, usermod should still work, do you have the openssl command, try:

Code:
$ openssl passwd test123

These commands will need to be run as root you can't change user attributes without root access - you mentioned cron so again your final script would need to be run as a root cronjob.
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