Re: Problem in creating Directory

In line 32, 58, and 59, you're calling mkdir, but not checking the "return value" (which is to say, not checking for success or failure). It's very important to check for failure, and if failure occurs, inspect the contents of the special variable "$!" to see what went wrong. Otherwise we're all just going to be guessing.

So, for example, on line 32, change to:

mkdir "/var/www/html/piRNA_html/UNAFold/output/$temp2/$temp1",
      0775
    or die "Failed to create directory ..../$temp2/$temp1: $!";
[download]

Once you know what went wrong 3/4ths of the battle is won. We could wade through the code, ask a bunch of questions, and so on. But unless you're taking advantage of Perl's ability to provide clues you haven't done your own due diligence yet. :)

Dave

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Re^2: Problem in creating Directory by MVRS (Acolyte) on Dec 02, 2011 at 12:55 UTC
after adding $! , am getting the following error in my gi Software error: Cannot make directory /var/www/html/piRNA_html/UNAFold/output/10010 , errorwas:Permission denied at /var/www/html/piRNA_html/UNAFold/mkdirtest.cgi line 39. i couldnt understand , though 0777 permission given , y its giving error about permission, please reply me in this	[reply]
Re^3: Problem in creating Directory by lune (Pilgrim) on Dec 02, 2011 at 14:05 UTC
When you create a file or directory, you can define the permissions for the item you are going to create. These are the 0777 permissions given by You. As creating a new directory is nothing else but writing an entry into the directory above, you need write permissions for /var/www/html/piRNA_html/UNAFold/output. The user that needs those permissions is the cgi user, the script will run under. Here You can find some hints on CGI programming	[reply]
Re^3: Problem in creating Directory by choroba (Cardinal) on Dec 02, 2011 at 13:27 UTC
The error tells you "You do not have the permission to create the directory", while the permission you give means "after creating the directory, give it this permission". These two permissions are totally unrelated.	[reply]
Re^3: Problem in creating Directory by runrig (Abbot) on Dec 02, 2011 at 16:41 UTC
You've reported at least two completely different errors in this thread, "file exists", and "permission denied". For "permission denied", do this: `ls -ld /var/www/html/piRNA_html/UNAFold/output` [download] What are the permissions on the directory? Do you (or the user this script is running under) have write permission in the directory?	[reply] [d/l]
Re^2: Problem in creating Directory by MVRS (Acolyte) on Dec 02, 2011 at 06:37 UTC
Thanks for the reply dave, yes ur ryt i havent done proper deligence, becoz am new to perl , and my perl knowledge is not upto the mark , when i changed accordingly its giving following error Failed to createeate directory /var/www/html/piRNA_html/UNAFold/output//: File exists at /var/www/html/piRNA_html/UNAFold/mkdirtest.cgi line 39.	[reply]
Re^3: Problem in creating Directory by davido (Cardinal) on Dec 02, 2011 at 06:50 UTC
Now go to your linux prompt and type the following: `mkdir mytest mkdir mytest` [download] You'll get the following error message: `mkdir: cannot create directory mytest: File exists` [download] You can go ahead and `rmdir` that `mytest` directory now, and then ask yourself why you're trying to create a directory that already exists. Dave	[reply] [d/l] [select]
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Re^3: Problem in creating Directory by lune (Pilgrim) on Dec 02, 2011 at 09:01 UTC
The error message just tells You that the directory $somepath/output exists. Your variables $temp1, $temp2 seem to have been empty (see the trailing slashes in the error message). Besides the push statement in line 27 declares a second array @folder_names. You should really uncomment the "use strict" like already said. This will help You find and correct errors like this one.	[reply]