Command to calculate space for all subdirs under a dir Post: 302583502

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Homework and Emergencies Emergency UNIX and Linux Support Command to calculate space for all subdirs under a dir Post 302583502 by drl on Tuesday 20th of December 2011 01:47:53 PM

12-20-2011

Registered User

Off-the-wall

Hi.

If you are looking for the space infrequently, then du seems like an appropriate solution, or perhaps allowing some tasks to run in parallel, say for the first-level sub-directories.

However, if you need to see the space more often, then there is a way that can you see it very quickly: make it a separate file system, and use df:

Code:

$ df -h
Filesystem             size   used  avail capacity  Mounted on
rpool/ROOT/s10x_u6wos_07b
                       7.8G   3.8G   2.9G    57%    /
swap                   476M   372K   476M     1%    /etc/svc/volatile

This was produced in:

Code:

OS, ker|rel, machine: SunOS, 5.10, i86pc
Distribution        : Solaris 10 10/08 s10x_u6wos_07b X86

and the results appeared almost instantaneously after the Return was pressed -- try it for yourself.

I have not done this in Solaris (it looks different on my Linux box), but I'm supposing that you'd allocate space on a disk, create a filesystem, create a directory in /, mount the filesystem, and copy the large directory to it, which would take time and disk space. After that, you could use the new directory as usual, and get your space calculations very fast.

It's not a trivial matter to do this, and it is drastic, but if you really, really needed it, then it may be a solution to consider. ... cheers, drl

drl

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LEARN ABOUT MOJAVE

tk_choosedirectory

tk_chooseDirectory(n)					       Tk Built-In Commands					     tk_chooseDirectory(n)

__________________________________________________________________________________________________________________________________________________

NAME

       tk_chooseDirectory - pops up a dialog box for the user to select a directory.

SYNOPSIS

       tk_chooseDirectory ?option value ...?
_________________________________________________________________

DESCRIPTION

       The  procedure tk_chooseDirectory pops up a dialog box for the user to select a directory. The following option-value pairs are possible as
       command line arguments:

       -initialdir dirname
	      Specifies that the directories in directory should be displayed when the dialog pops up. If this parameter is  not  specified,  then
	      the  directories	in  the current working directory are displayed. If the parameter specifies a relative path, the return value will
	      convert the relative path to an absolute path.

       -mustexist boolean
	      Specifies whether the user may specify non-existent directories.	If this parameter is true, then the user may only select  directo-
	      ries that already exist.	The default value is false.

       -parent window
	      Makes window the logical parent of the dialog. The dialog is displayed on top of its parent window. On Mac OS X, this turns the file
	      dialog into a sheet attached to the parent window.

       -title titleString
	      Specifies a string to display as the title of the dialog box. If this option is not specified, then a default  title  will  be  dis-
	      played.

EXAMPLE

	      set dir [tk_chooseDirectory 
		      -initialdir ~ -title "Choose a directory"]
	      if {$dir eq ""} {
		 label .l -text "No directory selected"
	      } else {
		 label .l -text "Selected $dir"
	      }

SEE ALSO

       tk_getOpenFile(n), tk_getSaveFile(n)

KEYWORDS

       directory, selection, dialog, platform-specific

Tk									8.3						     tk_chooseDirectory(n)

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