Problem getting cgi script to work with apache?

[Simon Andrews]

Gordon Messmer wrote:
> Knute Johnson wrote:
>>
>> No it was almost twice as many lines.  But I think that is where the 
>> problem is.  Another fellow suggested that I try dos2unix and that 
>> makes a file exactly the same size as the VIM copied one that works.  
>> I just tried it and that has fixed my problem.  I had no clue that 
>> perl was sensitive to carriage returns.
> 
> As far as I know, it's not.  The problem you run in to is that the 
> kernel *is* sensitive to CR in the shebang.  If the first line of your 
> file is:
> 
> #!/usr/bin/perl\r\n
> 
> ...then the kernel will try to exec "/usr/bin/perl\r", which doesn't 
> exist.  Naturally, as a kernel issue, this affects all scripts, 
> regardless of the interpreter used.

..which is why it's a good idea to always use:

#!/usr/bin/perl --

..as the shebang line, which won't get messed up by any combination of 
line endings.

Simon.