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Shell Programming and Scripting

Shadow file

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# 1  
Old 04-15-2009
Shadow file
Hi,

In shadow file

smithj:Ep6mckrOLChF.:10063:0:99999:7:::
3rd Field 10063 indicates the number of days (since January 1, 1970) since the password was last changed.

I want to get the result with script the date on which the password was last changed in YYYY-MM-DD format.

can someone please help
# 2  
Old 04-15-2009
Sorry I dont know well bash script and sed :P but i think you can start from this:

$ chage --list [user] | sed -e '1!d' -e 's/^.*\: //'

change [user] with a true user and you can make a script that extract all users and a while loop for exec command for any user and another loop for change output in YYYY-MM-DD format.
.
I dont know if this is the better solution but I hope someone can help you better Smilie

bye Smilie
Last edited by aspire; 04-16-2009 at 12:11 AM..
# 3  
Old 04-16-2009
not knowing your OS:

solaris: passwd -s smithj
linux: passwd -S smithj
aix: perl -e 'print scalar(localtime( `lsuser -a lastupdate smithj` ))'

use printf to format to your liking
# 4  
Old 04-16-2009
Quote:
Originally Posted by aspire
Sorry I dont know well bash script and sed :P but i think you can start from this:

$ chage --list [user] | sed -e '1!d' -e 's/^.*\: //'

change [user] with a true user and you can make a script that extract all users and a while loop for exec command for any user and another loop for change output in YYYY-MM-DD format.
.
I dont know if this is the better solution but I hope someone can help you better Smilie

bye Smilie
smithj:Ep6mckrOLChF.:10063:0:99999:7:::

I think there is some misunderstanding.
I want to convert 10063 i.e 3rd field in shadow file from days format to date format of YYYY-MM-DD

Suppose the 3rd field is 365 then this should be converted to 12-31-1970
because 3rd Field indicates the number of days (since January 1, 1970)
# 5  
Old 04-16-2009
like this?

$ date -d @1
output:
Thu Jan 1 01:00:01 CET 1970
You must convert days in seconds i think...

(Sorry...I dont know if there is a better solution :P )
Last edited by aspire; 04-16-2009 at 01:01 AM..
# 6  
Old 04-16-2009
Quote:
Originally Posted by aspire
like this?

$ date -d @1
output:
Thu Jan 1 01:00:01 CET 1970
You must convert days in seconds i think...

(Sorry...I dont know if there is a better solution :P )

Can any expert please reply to this.

Appreciate it
# 7  
Old 04-16-2009
Quote:
Originally Posted by zenith
smithj:Ep6mckrOLChF.:10063:0:99999:7:::

I think there is some misunderstanding.
I want to convert 10063 i.e 3rd field in shadow file from days format to date format of YYYY-MM-DD

Suppose the 3rd field is 365 then this should be converted to 12-31-1970
because 3rd Field indicates the number of days (since January 1, 1970)

Can someone help me how to do this using ksh.
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