SUMMARY: Scripted access to sentral repository

Hi all, Thanx for the quick reponses.  The prise for the best answer goes
to Ole-Morten Duesund, who said:

Something like :

if mkdir $REPOSITORY/.lockdir; then
      MergeRepository
      rmdir $REPOSITORY/.lockdir
fi

Should work, mkdir returns false if the directory already exists. Btw,
you might want to do :
      if mkdir $REPOSITORY/.lockdir 2> /dev/null; then
to avoid the error message from mkdir if/when it fails.


On Fri, 2003-05-30 at 10:14, Johan Hartzenberg wrote:
> Has anybody implemented file locking via shell scripts?
>
> I need an effective way to allow multiple hosts to collect some data
> locally and then dump it into a structured repository shared via NFS,
which
> means I will nead some form of file locking.
>
> I would like to avoid race conditions from statements like the following:
>
> [ ! -f $REPOSITORY/.lockfile ] && touch $REPOSITORY/.lockfile &&
> MergeRepository && rm $REPOSITORY/.lockfile
>
> Any ideas?
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