synchronizing concurrent shell scripts

Bart Whiteley bart.plug at whiteley.org
Mon Feb 12 12:03:19 MST 2007


On 2/12/07, Michael L Torrie <torriem at chem.byu.edu> wrote:
>
> On Mon, 2007-02-12 at 11:45 -0700, Michael L Torrie wrote:
> > I have a situation where shell scripts, executed asynchronously, need to
> > have a way to wait for each other when doing a load-intensive operation.
> > Do any of you have any methods for synchronizing the operation of
> > concurrent shell scripts?
>
> My bad.  Google reveals that there's a nice standard unix
> command: /usr/bin/lockfile
>
> man lockfile reveals this is just what I'm looking for.
>
>
lockfile... cool.  If you happen to be using bash, you can do the same thing
with a 'set -o noclobber' and avoid the overhead of forking an additional
process (lockfile).
http://tldp.org/LDP/Bash-Beginners-Guide/html/sect_03_06.html#sect_03_06_02



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