08-21-2007
I'm doing it in perl
Sorry if I wasn't clear.
I need to create a folder and if there is any errors like permission errors I want to let the user know about it. However I don't wish to overwrite the folder if it already exists. Also I need to do it inside a Perl script.
This is the workaround I came up with:
`ls log 2> /dev/null`; #check if the folder exists
if($?) { #if it doesn't create it
`mkdir log`;
$dirFlag = 1; #flag to know that dir was created
}
The bad thing about this is that it wont let the user know if there were any permission errors. In other words, if the folder wasn't created for some reason the program will crash later when I try to write to that folder.
So what I want to do is to somehow check, in my Perl code, the error code that UNIX spits out. The problem is that I'm getting the same error code number for both "File Permission" and "File exists" errors.
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mhpath(1) General Commands Manual mhpath(1)
NAME
mhpath - print full pathnames of MH messages and folders (only available within the message handling system, mh)
SYNOPSIS
mhpath [+foldername] [msgs] [-help]
OPTIONS
Prints a list of the valid options to this command.
DESCRIPTION
Use the mhpath command to display the full pathname of the specified folder. If you do not specify a folder, mhpath displays the pathname
of the current folder.
If you specify a message with its message number, mhpath displays the pathname of the specified message. You can also specify a number of
messages, or a range of messages. If the top of the range that you specify is greater than the last message in the folder, mhpath displays
as much of the specified range as possible.
Additionally mhpath can take a keyword or a sequence name. The following keywords are acceptable: The first message in the folder. The
last message in the folder. The message after the last message in the folder. You cannot use new as part of a message range. The current
message in the folder. The message before the current message. The message after the current message. All of the messages in the folder.
PROFILE COMPONENTS
Path: To determine your Mail directory
EXAMPLES
In the following example, mhpath displays message 3 in the folder +inbox: % mhpath +inbox 3 /r/phyl/Mail/inbox The following example dis-
plays the pathname of messages 2 to 5 in the current folder: % mhpath 2-5 /r/phyl/Mail/inbox/2 /r/phyl/Mail/inbox/3 /r/phyl/Mail/inbox/4
/r/phyl/Mail/inbox/5
FILES
The user profile.
SEE ALSO
folder(1)
mhpath(1)