Re: Changing HOME for PERL

[Jeremy Bopp <jeremy at bopp dot net>]

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Dexter_Michael@emc.com wrote:
> Hi Jeremy,
> 
> Thank you - I see I should elabore and include my error for a proper
> solution.
> I am confused as to what I should do next.
> 
> So to reverse what I have done so far I went into cygwin\etc and
> replaced the modified passwd file with the original passwd file.

This is good.  You should be able to leave the /etc/passwd file alone.

> If I remove the HOME variable in Windows, what change do I need to make
> and where to get Cygwin to open at /usr/bin

Your problem doesn't require that your shell drop you into /usr/bin.
While it may work as a hack to solve your issue immediately, you'll
likely run into more issues later on.

> Yesterday I tried to run one of the Perl scripts from class with the
> following SHEBANG:	#!/usr/bin/perl
> 
> In order for me to fix the error (make it go away) I had to change my
> SHEBANG to:
> #!/cygdrive/c/PERL/BIN/perl
> 
> Here is what the error was:
> dextem@USENDEXTEML1C ~/PERL
> $ ./test1-mike.pl
> bash: ./test1-mike.pl: /usr/bin/perl^M: bad interpreter: Permission
> denied

This looks like an issue caused by DOS line endings in your script (see
the ^M in the error message); however, I can't reproduce the error here
even when purposely changing line endings to DOS line endings.

> Using the cygdrive SHEBANG the file runs great:
> dextem@USENDEXTEML1C ~/PERL
> $ ./test1-mike.pl
> he he he
> he he he
> he he he bye

The method you used to change the SheBang line could be the more
important reason for the fix than the change itself, but I would need to
see both versions of the file to be sure.

> So what do I need to do so that I can use the Unix SHEBANG
> #!/usr/bin/perl  
> in the top of all my files.  I prefer not the env variable solution
> unless that is the only way.

Something you can try before sending these files is to run d2u or
dos2unix on the file which is failing:

d2u test1-mike.pl

That will convert all DOS line endings into Unix line endings, and that
may solve your issue.

-Jeremy

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