On Sat, 29 Jan 2005, Chuck Swiger wrote:[ ... ]
Well-behaved 3rd party scripts ought to start Perl via:
#! /usr/bin/env perl
...so long as /usr/local/bin is in the $PATH, they should still work fine.
I commonly use this approach, but I run into some problems with flags. Probably a simple gotcha someone can help with.
Eg the following useful constructs don't work:
#!/usr/bin/env perl -p #!/usr/bin/env perl -T #!/usr/bin/env perl -w
See "man perlrun" for some additional suggestions (and caveats), as it gives examples for passing -p to perl when invoked via /usr/bin/env or /bin/sh. You might also try putting a "--" between the 'env' and the 'perl' to indicate the end of command-line option processing to env.
It's possible that taint mode cannot be invoked this way (as that needs to be set very early on), though. There also seems to exist a PERL5OPT variable which could be set like so:
#!/usr/bin/env PERL5OPT='-w' perl
This should support -T, too, only it will zap any additional args specified afterwards (or so the docs say)...
-- -Chuck
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