Re: [vox-tech] Perl help requested
On Tue 10 Feb 04, 9:56 AM, Richard Crawford [EMAIL PROTECTED] said: I'm trying to write a Perl application that will go through a directory and give the amount of space used by each directory, including each subdirectory. So, for example, if myDirectory1 has three files totalling 150K and two subdirectories (mySubDirectoryA, with 20K of files, and mySubDirectoryB with 50K of files), I'd like to see output like this: DIRECTORY SIZE == myDirectory1 220K I'm stuck at the first line. Any suggestions? is this a programming exercise or do you just want something to give you the numbers? pete -- Make everything as simple as possible, but no simpler. -- Albert Einstein GPG Instructions: http://www.dirac.org/linux/gpg GPG Fingerprint: B9F1 6CF3 47C4 7CD8 D33E 70A9 A3B9 1945 67EA 951D ___ vox-tech mailing list [EMAIL PROTECTED] http://lists.lugod.org/mailman/listinfo/vox-tech
Re: [vox-tech] Perl help requested
Peter Jay Salzman said: On Tue 10 Feb 04, 9:56 AM, Richard Crawford [EMAIL PROTECTED] said: I'm trying to write a Perl application that will go through a directory and give the amount of space used by each directory, including each subdirectory. So, for example, if myDirectory1 has three files totalling 150K and two subdirectories (mySubDirectoryA, with 20K of files, and mySubDirectoryB with 50K of files), I'd like to see output like this: DIRECTORY SIZE == myDirectory1 220K I'm stuck at the first line. Any suggestions? is this a programming exercise or do you just want something to give you the numbers? A programming exercise. It's something we'll be going back to again and again. I'm having trouble installing the FileSys modules, which is making all of this unnecessarily difficult. Sláinte, Richard S. Crawford (AIM: Buffalo2K) http://www.mossroot.com http://www.stonegoose.com/catseyeview Howard Dean for America: http://www.deanforamerica.com I really didn't realize the librarians were, you know, such a dangerous group. They are subversive. You think they're just sitting there at the desk, all quiet and everything. They're like plotting the revolution, man. I wouldn't mess with them. --Michael Moore ___ vox-tech mailing list [EMAIL PROTECTED] http://lists.lugod.org/mailman/listinfo/vox-tech
Re: [vox-tech] Perl help requested
--- Richard Crawford [EMAIL PROTECTED] wrote: Peter Jay Salzman said: On Tue 10 Feb 04, 9:56 AM, Richard Crawford [EMAIL PROTECTED] said: I'm trying to write a Perl application that will go through a directory and give the amount of space used by each directory, including each subdirectory. So, for example, if myDirectory1 has three files totalling 150K and two subdirectories (mySubDirectoryA, with 20K of files, and mySubDirectoryB with 50K of files), I'd like to see output like this: DIRECTORY SIZE == myDirectory1 220K I'm stuck at the first line. Any suggestions? is this a programming exercise or do you just want something to give you the numbers? A programming exercise. It's something we'll be going back to again and again. I'm having trouble installing the FileSys modules, which is making all of this unnecessarily difficult. snip File::Find comes to mind. It is a handy way to walk a tree, doing whatever you want, at each file in the tree. There are probably other better, faster ways but if you plan on making a project of this, then this approach might provide a little structure to build on. Just a thought, Jim __ Do you Yahoo!? Yahoo! Finance: Get your refund fast by filing online. http://taxes.yahoo.com/filing.html ___ vox-tech mailing list [EMAIL PROTECTED] http://lists.lugod.org/mailman/listinfo/vox-tech
Re: [vox-tech] Perl help requested
--On Tuesday, February 10, 2004 09:56:36 -0800 Richard Crawford [EMAIL PROTECTED] wrote: I'm trying to write a Perl application that will go through a directory and give the amount of space used by each directory, including each subdirectory. So, for example, if myDirectory1 has three files totalling 150K and two subdirectories (mySubDirectoryA, with 20K of files, and mySubDirectoryB with 50K of files), I'd like to see output like this: DIRECTORY SIZE == myDirectory1 220K You know, you're basically describing the du program. Assuming du doesn't meet your needs as-is, your perl script could launch du with appropriate arguments and massage the output as needed. For an all-perl solution, I'd probably use File::Find to traverse the directory structure of interest and track total sizes using a hash table of directory paths. For each file you'll need two pieces of information: 1) its size, obtained by stat'ing it. 2) its pathname, which should be available through a File::Find variable. You'll parse this into all of the ((sub-)sub-)directories containing the file, in order to collate total sizes by directory. You'll want to consider the following: 1) Are the sizes of the directories themselves part of the totals? Keep in mind that if the directory tree were moved to a different filesystem, the directories might a different amount of space. 2) What to do with hard links? If a file appears twice within the directory tree, does it count once or twice? 3) What to do with symlinks? The symlink itself takes up a small amount of space, and it refers to a file which might or might not be within the directory tree. There's no one right way to handle these; it just depends on what you're doing with the totals. -- Grand Funk Railroad paved the way for Jefferson Airplane, which cleared the way for Jefferson Starship. The stage was now set for the Alan Parsons Project, which I believe was some sort of hovercraft. - Homer Simpson Kenneth Herron[EMAIL PROTECTED] 916-366-7338 ___ vox-tech mailing list [EMAIL PROTECTED] http://lists.lugod.org/mailman/listinfo/vox-tech
Re: [vox-tech] Perl help requested
On Tue, Feb 10, 2004 at 09:56:36AM -0800, Richard Crawford wrote: I'm trying to write a Perl application that will go through a directory and give the amount of space used by each directory, including each subdirectory. So, for example, if myDirectory1 has three files totalling 150K and two subdirectories (mySubDirectoryA, with 20K of files, and mySubDirectoryB with 50K of files), I'd like to see output like this: If this isn't just an excercise in programming, or an improvement over the existing tool, have you looked into df(1)? -- Micah J. Cowan [EMAIL PROTECTED] ___ vox-tech mailing list [EMAIL PROTECTED] http://lists.lugod.org/mailman/listinfo/vox-tech
