cgi-bin~perl

**flacko21** · 12-24-2005

hi well i have redhat9.0 and im kinda new to this os need help on what to open to write a perl script on linux and where to save it. and do i really need perl to use perl to use cgi-bin. this is way over my head.

**Cabhan** · 12-25-2005

Um...

To write a Perl script, you can use any text editor. I personally write Perl from the commandline, using the vi text editor, but if you use a GUI, gedit (Gnome) or kate (KDE) will both work.

Make sure to make the first line of the file "#!/usr/bin/perl", so that you can simply invoke the file instead of needing to name a parser (important for CGI work).

Also, to write CGI, you need to be sure that you use the CGI module.

As far as where to save it, this depends on a few things. If you're simply testing a script, well, CGI simply writes out HTML, so you can save and run the script from anywhere.

If you're setting it up on a webserver, you need to save it to wherever the server knows to EXECUTE scripts, as opposed to displaying them. Such a directory is often called cgi-bin.

Hope this helps!

**flacko21** · 12-25-2005

ok well i want to add the script to my server, i do know where the cgi-bin folder is at but when i wrote the script it just like a plain notepad. i can even open it and edit the script. i save it as hello.pl is that right. well here is the script that i wrote

#!c:\perl\bin

print "content-type: text/html\n\n\";
print "<html>";
print "<head>";
print "<title>first perl test</title>";
print "</head>";
print "<body>";
print "your ip address is: $env{remote_host}";
print "</body>";
print "</html>";

correct me if you see an error
this one i save it as 10-01.pl
so i type http://localhost/cgi-bin/10-01.pl
and i get an error
that the server can't open perl scripts

**Cabhan** · 12-26-2005

Have you associated the ".pl" extension with execution? You might want to change the extension to ".cgi".

**spoon!** · 12-26-2005

Instead of "c:\perl\bin", you need the actual path to Perl on your computer, which you can find with "which perl"; it's usually "/usr/bin/perl".

Also, you have to make sure that the script is executable: "chmod +x hello.pl"

If that doesn't work, post your /etc/httpd/conf/httpd.conf here.

**Cabhan** · 12-26-2005

Because his line is a Windows path, I'm gonna assume he's on a Windows machine, which means shebang lines don't work.

Also, since he's using localhost, I assume the server is Windows, so again, shebang lines won't work.

**flacko21** · 12-27-2005

just to let you guys know im using redhat 9.0 server
i change: "c:\perl\bin" to "usr/bin/perl
so at this point at this this code: #!/usr/bin/perl
print "hello" save as hello.pl and it work i save made another one and save it as 10-01.cgi and it work too
both .pl and .cgi work but the i do this code:
#!/usr/bin/perl

print "content-type: text/html\n\n\";
print "<html>";
print "<head>";
print "<title>first perl test</title>";
print "</head>";
print "<body>";
print "your ip address is: $env{remote_host}";
print "</body>";
print "</html>";

im try to display my ip address in my browser
i save this at home/username: fail
i save this at cgi-bin dir: fail can you take a look the code is correct and address me about it, and also what things do i need to look at since i know .cgi and .pl work fine with other codes. i test: 127.0.0.1 and pc reply back with:
64 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=0.034 ms and so on

**Cabhan** · 12-29-2005

Originally Posted by flacko21

im try to display my ip address in my browser
i save this at home/username: fail
i save this at cgi-bin dir: fail can you take a look the code is correct and address me about it, and also what things do i need to look at since i know .cgi and .pl work fine with other codes. i test: 127.0.0.1 and pc reply back with:
64 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=0.034 ms and so on

You say 'fail'. Can you be more specific? Are you getting a 500 error (that is, the script has a problem), or is it returning the incorrect address?

**flacko21** · 01-01-2006

at this point i set the path:
cd /var/www/cgi-bin
then once im in path i type perl myip.cgi and i get back i reply back like this:
content-type: text/html

<html><head><title>my ip address</title></head><body>your ip address is: </body></html>
so i open my browser and type 127.0.0.1/scripts/myip.cgi
and this is what i get back http://channels.netscape.com/search/default.jsp

i type in scripts cause that what they told me to type. can you see what im doing wrong

**flacko21** · 01-01-2006

Server error!

The server encountered an internal error and was unable to complete your request.

Error message:
Premature end of script headers: 12.cgi

If you think this is a server error, please contact the webmaster

Error 500

127.0.0.1
Sun 01 Jan 2006 01:03:33 PM CST
Apache/2.0.40 (Red Hat Linux)
this is same code i did but name it 12.cgi

Thread Tools

Display

cgi-bin~perl

cgi-bin~perl

cgi-bin

cgi-bin~perl

cgi-bin~perl

Posting Permissions