Re^2: #! -- why doth thou exist?

You could even compile a Perl that reads the #! and replaces itself with the interpreter specified there!

Indeed, perl does this out of the box.

$ cat foo.sh
#!/bin/sh
echo 'Hello, World!'
$ perl foo.sh
Hello, World!
[download]

perlrun has the details, though I prefer Dominus' take in perliaq.

Comment on Re^2: #! -- why doth thou exist? Download Code

Replies are listed 'Best First'.
Re^3: #! -- why doth thou exist? by itub (Priest) on Aug 26, 2005 at 03:30 UTC
But, as perlrun says, that trick doesn't work when the interpreter has "perl" in the name, even if it's a different version. That is, `$ cat foo.pl #!/usr/bin/perl print "$]\n"; $ ~/bin/perl foo.pl` [download] will run ~/bin/perl, and not /usr/bin/perl. I think this is good more often than not.	[reply] [d/l]