[clug-talk] file locking in bash?

Mark Carlson carlsonmark at gmail.com
Fri Jul 27 08:45:04 PDT 2007

On 7/27/07, Roy Souther <roy at silicontao.com> wrote:
>  I have no man pages for flock.
>  Could you give me an example of how to use that in bash?

Sorry, I thought it was a regularly distributed command (silly me...
it is installed on my fedora box, that should have raised some
flags... darn redhat)


It is apparently part of util-linux.  Although, at the very least you
should have a man page for the flock(2) system call... odd...

Some info on util-linux:

>From the man page link, above:

EXAMPLES (invoking some imaginary programs)

       flock /etc/passwd read-and-write-to-passwd

       flock --shared /etc/passwd just-read-something-from-passwd

       flock --timeout=0 /sys /usr/local/bin/update-hotplug /sys

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