From: DJ Delorie <dj AT delorie DOT com>
Subject: Re: script execution bug
23 Nov 1998 08:35:46 -0500
Message-ID: <365964B2.6CB01688@delorie.com>
References: <uww4qtsxk DOT fsf DOT cygnus DOT cygwin32 DOT developers AT parvati DOT will DOT or DOT jp>
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Kazuhiro Fujieda wrote:
> For example,
> $ echo '#!/usr/local/bin/bar' > /usr/local/bin/foo
> $ echo '#!/sh' > /usr/local/bin/bar
> $ /usr/local/bin/foo
> /usr/local/bin/C:\usr\local\bin\bar: Can't open /usr/local/bin/C:\usr\local\bin\bar

Be careful with recursive #! usage.  Most unixes, if they work at all, will
use the interpreter from the second script as the interpreter of the first
script, but will not actually *run* the second script to interpret
the first.  For example:

foo:
#!/bin/sh
exec perl5 -w $*

bar:
#!/tmp/foo
for ($i=0;$i<$#ARGV;$i++) { print $ARGV[$i], "\n"; }

$ ./bar        
../bar[2]: syntax error at line 2 : `(' unexpected