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Replace password field using ed/sed

 
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# 1  
Old 04-27-2007
Replace password field using ed/sed
I need to edit the password file to change the password field to *LK* for a specified account (abctest) like:
abctest:*LK*:135:20::/home/abctest:/sbin/sh

Can anyone help me do this using ed or sed?

Thanks a lot!
# 2  
Old 04-27-2007
If manipulating the passwd file directly I would suggest you use the safer alternative which is awk.

In this case however, why not just use the system provided command for doing this, usually the passwd or usermod commands have an option for locking accounts.
# 3  
Old 04-28-2007
I am using the password command for all supported systems except hp10.20 which has no command to lock the password.

How can it be done with awk?

Thanks
# 4  
Old 04-28-2007
Code:
awk -F ":" 'BEGIN{OFS = ":"} /youruser/{$2="*LK*"}{ print}' /etc/passwd

please use at own risk.
Last edited by ghostdog74; 04-28-2007 at 02:42 AM..
# 5  
Old 04-30-2007
MySQL It worked for me
Thanks sooo much! I will be careful!
# 6  
Old 04-30-2007
Quote:
Originally Posted by ghostdog74
Code:
awk -F ":" 'BEGIN{OFS = ":"} /youruser/{$2="*LK*"}{ print}' /etc/passwd

please use at own risk.
Actually you should not use this code, a partial match will result in locking the wrong user.

eg users: user2 and user23 projectuser234 , using user2 will lock all three.

Code:
awk  'BEGIN{IFS = OFS = ":"} $1 == "youruser" { $2 = "*LK*" } { print }' /etc/passwd

# 7  
Old 05-01-2007
Quote:
Originally Posted by reborg
Actually you should not use this code, a partial match will result in locking the wrong user.

eg users: user2 and user23 projectuser234 , using user2 will lock all three.

Code:
awk  'BEGIN{IFS = OFS = ":"} $1 == "youruser" { $2 = "*LK*" } { print }' /etc/passwd

ah yes.. i missed out that one, should be == instead. tks
 
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