How to find out the Unix UID that a perl script was run as

[ianfo]

Hi,

I'm going to be running a perl script from different users crontabs. Is there a way within a perl script to find out what user it was run by (without calling out to something like id or "echo $LOGNAME&quot.

Thanks.

 

[fortytwo]

$> Holds the effective UID of the currently running Perl program

$< Holds the real UID of the currently running Perl program

Hope that helps,

Will.
fortytwo
will@hellacool.co.uk

 

[ianfo]

Is it possible to get the username rather than the UID?

Thanks

 

[fortytwo]

These might be of some help:

getpwnam($name) In a scalar context returns the UID for that login name; in a list context returns all of the fields of a password entry

getpwuid($uid) In a scalar context returns the login name for that UID; in a list context returns all of the fields of a password entry

Will.
fortytwo
will@hellacool.co.uk

 

[ianfo]

Thats great, thanks.