Eric Blake wrote: > Clark J. Wang wrote: > > In C code I can use lockf(), flock(), semaphore and mutex for locking / > > unlocking. Can bash provide some similar mechanisms? > > man 1 flock > > If necessary, you may need to install: > ftp://ftp.kernel.org/pub/linux/utils/util-linux-ng/
There is also 'lockfile' distributed with 'procmail'. http://www.procmail.org/ I tend to use 'mkdir' when I need a semaphore in a shell script. Bob
