My contribution is running the above script on a HPUX-10.20, so you may take a better decision:
#!/usr/bin/env perl -v This gives: No such file or directory: perl -v On Solaris2, this gives: This is perl, v5.6.0 built for sun4-solaris ... On Linux: /usr/bin/env: perl -v: No such file or directory On cygwin: /usr/bin/env: perl -v: No such file or directory So that only works fine on Solaris. I really don't know if there is a good reason to scramble all arguments into one, and what's the story behind... A remember that we were limited to 32 (or 31?) characters onto this line some years ago :-) without advertising so it was happening that only on character in the switch was missing for the interpreter (try to debug that!) Gerald S. Williams writes: ] I think DG's and PJA's original assessment was correct and ] BASH should be modified. Support for cross-platform scripts ] is important, and the #!/bin/env trick is used frequently. ] ] It is also not limited to env--any time you use multiple ] arguments to #! you get into trouble. For example, the ] following fails: ] ] #!/bin/python -tt -x ] print "hello, world" ] ] To avoid this, the scripting program would have to take ] special measures to split arguments containing spaces ] into multiple arguments. Perl does this, but defeating ] the shell's argument parser like this has got to be ] dangerous and no doubt involves some degree of magic. ] And as we've seen, that still doesn't help if you're ] using env to find perl. ] ] Solaris (System V) systems don't combine #! arguments ] that way. I don't currently have access to any, but from ] what I can recall, I'm pretty sure that SunOS (BSD) and ] the various flavors of HP and VAX UNIXes all work like ] Solaris in this regard. ] ] Ironically, this difference affects portability between ] Linux/Cygwin and traditional UNIX systems, but doesn't ] affect Windoze compatibility since only the extensions ] matter there and #! is ignored. ] ] I have also seen examples in popular Unix books (such ] as the O'Reilly nutshell books) that rely on multiple ] arguments. ] ] -Jerry ] ] -O Gerald S. Williams, 22Y-103GA : mailto:[EMAIL PROTECTED] O- ] -O AGERE SYSTEMS, 555 UNION BLVD : office:610-712-8661 O- ] -O ALLENTOWN, PA, USA 18109-3286 : mobile:908-672-7592 O- ] ] Christopher Faylor wrote: ] > > I think you're misinterpreting the problem. If it works the same way ] > > on linux and on cygwin, then there is nothing to fix. ] ] David Gluss wrote: ] > Hmm. You're right about that. In that case I will do nothing. ] > Of course I've always objected to that behavior...but so it is. ] ] ] -- ] Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple ] Bug reporting: http://cygwin.com/bugs.html ] Documentation: http://cygwin.com/docs.html ] FAQ: http://cygwin.com/faq/ -- *º¤., ¸¸,.¤º*¨¨¨*¤ Benoit Rochefort *º¤., ¸¸,.¤º*¨¨¨*¤ -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
