Sam,
> Hey, so I'm having a weird problem maybe someone can help me with.
> I have a simple perl script named test.cgi that generates html (ie a cgi
> script) which looks like
>
> #!/usr/bin/perl
> # hello.pl -- my first perl script!
> print "Content-type: text/html\n\n";
> print <<"EOF";
> <HTML>
> <HEAD>
> <TITLE>Hello, world!</TITLE>
> </HEAD>
> <BODY>
> <H1>Hello, world!</H1>
> </BODY>
> </HTML>
> EOF
>
> If I type "perl test.cgi" (minus the quotes) the perl script runs. If I
> type "./test.cgi" I got the error "bash: ./test.cgi: No such file or
> directory"
> If I remove the #!/usr/bin/perl line from the beginning of the perl script
> and "./test.cgi" again it runs but gives a lot of file not found errors.
> I'm guessing that somewhere there is an environment variable I am missing or
> something... I have perl 5.6 installed and Mandrake 7.1 with the 2.2.16
> kernel.
> Any suggestions???
>
> Thanks
> Sam
I got bitten by this in my early days of Perl on Linux...
Note the output (xx.pl is your script copy/pasted into it, chmod 711)...
# the following 3 commands give the same output
[DW] $ perl xx.pl
[DW] $ ./xx.pl
[DW] $ perl xx2.pl
Content-type: text/html
<HTML>
<HEAD>
<TITLE>Hello, world!</TITLE>
</HEAD>
<BODY>
<H1>Hello, world!</H1>
</BODY>
</HTML>
[DW] $ ./xx2.pl
bash: ./xx2.pl: No such file or directory
Hey, what happened to ./xx2.pl ?
[DW] $ ll xx*
-rwx------ 1 dwoods dwoods 205 Oct 24 23:29 xx.pl*
-rwx------ 1 dwoods dwoods 218 Oct 24 23:29 xx2.pl*
-rw------- 1 dwoods dwoods 264 Oct 24 23:31 xx2.pl.zip
xx.pl is your script. I uploaded it to Windows, zipped, downloaded it
back (xx2.pl.zip), unzipped it to give me xx2.pl ;)
Figured it out ? That's right, ftp'ing a zip file and unzipping it
on Linux will retain the Windows end-of-line markers (CR/LF). *nix
only uses LF (newline). If you use vi/vim on xx2.pl, you'll see a
'[dos]' comment in the status line (bottom). If you use 'cat -v xx2.pl',
you'll see the '^M' at the end. If you compare xx.pl and xx2.pl by using
'od =a xx.pl' and 'od -a xx.pl2', you'll see 'cr' in xx2.pl .
So how do we convert it ?
You could gzip your file, upload to windows, unzip it, download the unzipped
file, and then ./xx2.pl will work (chmod 711).
You could go to rpmfind.net and look for dos2unix.rpm (and unix2dos) files.
However I prefer to do this simple trick
[DW] $ tr -d '\r' <xx2.pl >xx2ok.pl
[DW] $ chmod 711 xx2ok.pl
[DW] $ ./xx2ok.pl
Moral of the story... if you download zip files onto Linux, be sure to use
unzip -a file # see: man unzip
Or unzip on windows, and then your ftp program will convert line endings
on text files.
Thanks... Dan.
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