Mail Archives: cygwin/2004/10/05/20:34:54
On Wed, Oct 06, 2004 at 09:48:56AM +1000, luke DOT kendall AT cisra DOT canon DOT com DOT au wrote:
>On 5 Oct, Brian Dessent wrote:
>>If you want to specify what shell is used to run a script you either
>>need to specify it in the shebang of the script (#!/path/to/shell) or
>>you need to start that shell explicitly (/path/to/shell
>>/path/to/script). If you try to execute a script with no shebang then
>>the behavoir is going to be system-dependent. On cygwin that means
>>defaulting to /bin/sh, as you can see from spawn.cc:spawn_guts()
>>
>> if (buf[0] != '#' || buf[1] != '!')
>> {
>> pgm = (char *) "/bin/sh";
>> arg1 = NULL;
>> }
>
>Thanks, Brian.
>
>It'd be nicer if it instead looked for sh in PATH,
Nicer for you. Not so nice for someone who has a sh.exe in their path
which is not cygwin-aware or is not actually a shell at all.
><rant>
>BTW, I've wondered for many years why the #! notation doesn't allow a
>pathless program name, to mean "look it up in PATH" in the normal way.
#!/usr/bin/env perl
It's a standard idiom.
cgf
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