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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-WHATSTHIS(1)						   Chiark-backup					       BACKUP-WHATSTHIS(1)

backup-whatsthis - read an id off a tape and display it SYNOPSIS
backup-whatsthis [--list [n]] DESCRIPTION
`backup-whatsthis' is a simple script to display the TAPEID of the current tape and optionally list its contents. This script is a bit of a hack and may not be fully reliable. OPTIONS
--list [n] Print TAPEID then list archive n (default 0). Note that archives are numbered from zero. FILES
/etc/chiark-backup/ Configuration file for the whole of chiark-backup BUGS
`backup-whatsthis' is currently hardwired to assume `cpio' type backups when listing; it could be trivially hardwired to assume `zafio' or with slightly more effort it could be done properly :->. AUTHOR
This Manual page was written by Matthew Vernon <> but may be used by anyone. COPYRIGHT
Copyright (C) 1997-1998,2000-2001 Ian Jackson <> Copyright (C) 1999 Peter Maydell <> This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU- LAR PURPOSE. Debian July 2003 BACKUP-WHATSTHIS(1)

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