reading env variable in cygwin using perl

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

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Re: reading env variable in cygwin using perl by Corion (Patriarch) on Mar 27, 2006 at 10:55 UTC
Most likely, the OSTYPE environment variable is simply not set, and hence you get an undefined value for it. You can check that by using: `my $OSTY; if (not exists $ENV{OSTYPE}) { warn "Couldn't determine OSTYPE"; $OSTY = "<unknown>"; } else { $OSTY = $ENV{OSTYPE} };` [download] More likely though, you might want to inspect the `$^O` variable, which returns you the type of operating system: `print "Running under $^O";` [download] You could combine the two techniques, and fall back if `$ENV{OSTYPE}` is unavailable: `my $OSTY; if (not exists $ENV{OSTYPE}) { warn "Couldn't determine OSTYPE from environment - using $^O"; $OSTY = $^O; } else { $OSTY = $ENV{OSTYPE} };` [download]	[reply] [d/l] [select]
Re: reading env variable in cygwin using perl by monkey_boy (Priest) on Mar 27, 2006 at 10:55 UTC
better still ... `use English; print $OSNAME , "\n";` [download]	[reply] [d/l]
Re: reading env variable in cygwin using perl by blogical (Pilgrim) on Mar 27, 2006 at 16:58 UTC
My Cygwin %ENV (@work) has `OS`, not `OSTYPE`. Try running `perl -e 'print $ENV{OS}'` [download] , which gives me `Windows_NT`. "One is enough. If you are acquainted with the principle, what do you care for the myriad instances and applications?" - Henry David Thoreau, Walden	[reply] [d/l]
Re^2: reading env variable in cygwin using perl by blogical (Pilgrim) on Mar 27, 2006 at 17:01 UTC
... or did you mean `$^OS`, which may be different? "One is enough. If you are acquainted with the principle, what do you care for the myriad instances and applications?" - Henry David Thoreau, Walden	[reply]