dump Linux Commands

What is Linux dump Command?

Explanation

dump COMMAND:

dump command makes backup of filesystem or file and directories.

SYNTAX :


dump [options] [dump-file] [File-system or file or directories].

OPTIONS:


-[level] The dump level any integer
-f Make the backup in a specified file
-u Updates /etc/dumpdats file for the backup made
-v Displays Verbose Information
-e Exclude inode while making backup

EXAMPLE:


  1. To make a backup for a directory or file :
    dump -0uf databackup /home/user1/data

    This command creates a dump-file called databackup which is the backup of /home/user1/data directory.
    In above command:
    -0-Is the dump-level [0 specifies full-backup]
    databackup-Is a dump-file [or backup-file]
    /home/user1/data-Is a directory for which a backup is created
  2. To make a backup for a directory or file which is already backedup with dump level 0:
    dump -1uf databackup /home/user1/data

    This command backups all the new files added to /home/user1/data directory after level-0 dump is made.
    -1-Is the dump-level [1 specifies incremental backup]
    databackup-Is a dump-file [or backup-file]
    /home/user1/data-Is a directory for which a backup is created

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