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Urgent!  :)  Reading a Directory of Files

Posted on 1998-10-29
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Last Modified: 2010-03-04
Hello!

How do I impliment the following in my CGI program?

I've got a directory full of .htm files. (and only .htm files)
How do I make my program:
A. Show each one on the screen (all at the same time) in the order they were posted to the directory.
B. Make it possible to delete specific ones. (via a 'delete' button on the page the cgi creates.

Thanks a bunch!
Please hurry your answer.
-Mark
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Question by:eversoslightly
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6 Comments
 
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Expert Comment

by:shchuka
ID: 1205804
You should use the opendir function, something like this, for example:

#!/usr/bin/perl
print "Content-type: text/html\r\n\r\n";

opendir(DIR,"/rootdir/mydir");
while($file = <DIR>) {
    print "$file <form method=GET action=delete.pl?$file><input type=submit value='Delete'></form><br>\n";
}
closedir(DIR);

Also, you'll have another file, delete.pl, like this:

#!/usr/bin/perl
unlink $ARGV[0];

You might need to modify this a little to accomodate correct subdirectories and also incorporate error handlers.

Hope this helps,
-Aleks

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Author Comment

by:eversoslightly
ID: 1205805
Thanks a lot - but something isn't working.

#!/usr/bin/perl
print "Content-type: text/html\r\n\r\n";

opendir(DIR,"/rootdir/mydir");
while($file = <DIR>) {
    print "$file <form method=GET action=delete.pl?$file><input type=submit value='Delete'></form><br>\n";
}
closedir(DIR);
  Here is the code you gave me for my one file... I modified the parts that needed to be modified, such as the path.
It appears that you need $file to equal something.... $file doesn't = <DIR> Or something - I'm not sure.... but when I call it, even though there are files in the directory, its not showing any of them when I call the program.
Can you help me any further?  Thanks a lot....

I'm going to have to reject this for now, so others are able to see the question.
0
 
LVL 1

Author Comment

by:eversoslightly
ID: 1205806
Thanks a lot - but something isn't working.

#!/usr/bin/perl
print "Content-type: text/html\r\n\r\n";

opendir(DIR,"/rootdir/mydir");
while($file = <DIR>) {
    print "$file <form method=GET action=delete.pl?$file><input type=submit value='Delete'></form><br>\n";
}
closedir(DIR);
  Here is the code you gave me for my one file... I modified the parts that needed to be modified, such as the path.
It appears that you need $file to equal something.... $file doesn't = <DIR> Or something - I'm not sure.... but when I call it, even though there are files in the directory, its not showing any of them when I call the program.
Can you help me any further?  Thanks a lot....

I'm going to have to reject this for now, so others are able to see the question.
0
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LVL 1

Author Comment

by:eversoslightly
ID: 1205807
Gerrr... I accidentally hit the button twice :)
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Accepted Solution

by:
shchuka earned 50 total points
ID: 1205808
I'm sorry, I confused reading a directory with reading a file.  The correct line should be:

while($file = readdir(DIR)) {
    print ...
}

Hope this works,
-Aleks.
0
 
LVL 1

Author Comment

by:eversoslightly
ID: 1205809
Thanks a lot!

This really helped, and worked well.

-Mark
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