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Please if you can help me when I made the backup in the "root" /home the size of the root space is not big enough so I try to make the backup on another place "/backup" but the following message appears : (-bash: file_name : Prmission denied)

Lucas Kauffman
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Mohammad AL-Rawabdeh
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  • does `svnadmin dump /path/to/repo > /dev/null` and `head /dev/urandom > /path/to/dumpfile` work? – krissi Aug 30 '10 at 12:43

2 Answers2

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You may not have permission to (a) read files in /home, especially if its a shared host, or (b) write to /backup. If you run it as root (using either su or sudo), you should be able to run the command.

EDIT: When you run sudo, what you'll want to do is sudo sh -c 'svnadmin dump myrepos > dumpfile'; that way, you're running the entire command--redirection and all--as root.

Andrew M.
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  • i used sudo but the same message appear !!! i don't konow why ... in other word the following command don't work any where elsa home "svnadmin dump myrepos > dumpfile" ... any other plase give me "NO Prmission" – Mohammad AL-Rawabdeh Aug 30 '10 at 11:52
  • How did you run that command? If you did `sudo svnadmin dump myrepos > dumpfile`, you are only assuming superuser access for the svnadmin aspect. What you'll want to do is `sudo sh -c 'svnadmin dump myrepos > dumpfile'`; that way, you're running the entire command--redirection and all--as root. – Andrew M. Aug 30 '10 at 12:50
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You wrote you use sudo. The command

# sudo svnadmin dump myrepos > dumpfile

will run ``svnadmin dump myreposwith the rights of root. The> dumpfile` part will not have the rights of root.

You could write a script, put the command in it and sudo the whole script or construct a one-liner like 

# sudo svnadmin dump myrepos | sudo tee dumpfile > /dev/null

or

# sudo sh -c 'svnadmin dump myrepos > dumpfile'

or

# svnadmin dump myrepos | sudo tee dumpfile > /dev/null

if you are allowed to read myrepos with user-rights

krissi
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