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Check backup file size on backup tape

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Old 10-25-2007
Check backup file size on backup tape


I performed backup on tape and I want to append more files to my previous backup on the same backup tape. But before I do that I need to know the backup file size of the first backup I performed so that I know the available size on the backup tape. Can someone help me what command I will use to check the size? I use tar on performing the backup. Thanks!
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BACKUP_APROPOS(8)					       AFS Command Reference						 BACKUP_APROPOS(8)

       backup_apropos - Displays each help entry containing a keyword string

       backup apropos -topic <help string> [-help]

       backup ap -t <help string> [-h]

       The backup apropos command displays the first line of the online help entry for any backup command that has in its name or short
       description the string specified by the -topic argument.

       To display the syntax for a command, use the backup help command.

       -topic <help string>
	   Specifies the keyword string to match, in lowercase letters only.  If the string is more than a single word, surround it with double
	   quotes (" ") or other delimiters.

	   Prints the online help for this command. All other valid options are ignored.

       The first line of a command's online help entry names it and briefly describes its function. This command displays the first line for any
       backup command where the string specified with the -topic argument is part of the command name or first line.

       The following example lists all backup commands that include the word "tape" in their names or short descriptions:

	  % backup apropos tape
	  labeltape: label a tape
	  readlabel: read the label on tape
	  scantape: dump information recovery from tape
	  status: get tape coordinator status


       backup(8), backup_help(8)

       IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved.

       This documentation is covered by the IBM Public License Version 1.0.  It was converted from HTML to POD by software written by Chas
       Williams and Russ Allbery, based on work by Alf Wachsmann and Elizabeth Cassell.

OpenAFS 							    2012-03-26							 BACKUP_APROPOS(8)

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