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  • File copy snippets

    Posté le 27th septembre 2008 leucos Pas de commentaires

    Useful file copy snippets collection for systems administration. scp is not here : syntax is trivial, and scp is really slow. The snippets below are supposed to be much faster, especially when dealing with many small files.

    netcat style

    • On sender :

    cd to the top dir to be copied recursively, and :

    tar cv . | nc -vq 10 -l -p 1234
    • On receiver :

    cd to the dir where the content has to be copied, and :

    nc -v sender 1234 | tar xf -

    ssh style

    • Data is remote, copy to where I am now :
    ssh user@source "cd /source/dir; tar cv ." | tar x
    • Data is in current directory, copy to remote server :
    tar cv . | ssh user@destination "cd /dest/dir; tar x"

    rsync+ssh style

    • Data is in current directory, copy to remote server :
    rsync -ve ssh -ar . user@destination:/dest/dir/

    Note : add ‘z’ to tar options if link is slow

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