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On Wednesday 10 March 2004 09:50, Christoph Pleger wrote: > Hello, > > > >> In my initialization scripts for hotplug (written for bash) the > > >> following command is used to redirect output which normally goes to > > >> stderr to the system logger: > > >> "exec 2> >(logger -t $0[$$])" > > > > > > I don't remember this syntax as legal. > > > > That's the process substitution feature of bash, quite handy when you > > want to get an fd connected to a pipe. > > I found out that the problem exists with bash 2.05b, but not with 2.05a. > The reason is that with 2.05a the command uses the file descriptors > under /dev/fd0 for the pipe, but with 2.05b the command creates a pipe > under /tmp. Obviously, the 2.05b mechanism worked with Kernel 2.4, but > not with 2.6. I always wondered what prevents bash from NOT using pipes in the filesystem. It does not use them for ps | less and friends. -- vda - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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