getting the real and effective UIDs of current process

greatnorthern has asked for the wisdom of the Perl Monks concerning the following question:

How do I do this. Had a glance at perldoc perlvar which advised me to use $< and $>. Unfortunately, I'm not somewhere I can go back and check the docs. Do I need to 'use english' in order to use $UID and $EUID or am I miles off the mark here?

Comment on getting the real and effective UIDs of current process

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Re: getting the real and effective UIDs of current process by snowcrash (Friar) on Apr 10, 2000 at 16:25 UTC
Yep, $< and $> work fine. In order to use the long variable names ($UID or $REAL_USER_ID and $EUID or $EFFECTIVE_USER_ID) you have to `use English;` Note that "English" is capitalized.	[reply] [d/l]
Re: getting the real and effective UIDs of current process by mikfire (Deacon) on Apr 10, 2000 at 16:21 UTC
$< is your real, $> is your effective. The appropriate manpages in the Library for later reference. Mik Mik Firestone ( perlus bigotus maximus )	[reply]
RE: getting the real and effective UIDs of current process by little_mistress (Monk) on Apr 10, 2000 at 22:52 UTC
The answer comes from the Perl in a Nutshell book, probably the bestest desk top book for perl, p.53. One of the really neatest things about perl in general is all of the nifty special variables. If you want longer easier to read variables try useing the English.pm modual. Though i would caution because it may be the case that you are working on a system that doesn't have it, and your in the ugly position of not being able to install it. That would suck. `$real_uid = $<; $effective_uid = $>;` [download] little_mistress@mainhall.com	[reply] [d/l]


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