am i in a chroot

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

Greetings,

I'm trying to determine if the script is being run in a chroot, basically by using this sub:

sub isChroot {
return ($ENV{'MACHTYPE'} eq 'i486-slackware-linux-gnu') ? 1 : 0; 
}
[download]

(my 'host' is debian, whereas the chroot is slack)

The problem is, echo $MACHTYPE works fine in bash, but it's not set in perl's %ENV (but %ENV itself is populated). Is there a way around this? Another path i can follow?
using $a = `echo $MACHTYPE` didn't help either.

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Re: am i in a chroot by Corion (Patriarch) on Sep 23, 2014 at 16:56 UTC
This is a shell issue, not a Perl issue. `$MACHTYPE` seems to be a shell variable that you did not `export` to the environment. Most likely, you can remedy the situation by typing: `export MACHTYPE` [download] in your shell window before running the Perl code.	[reply] [d/l] [select]
Re^2: am i in a chroot by vesperto (Initiate) on Sep 24, 2014 at 08:00 UTC
Indeed. Thanks, had to export it in `/etc/profile` /me bows his head in shame	[reply] [d/l]