Messages in this thread | | | Date | Sat, 26 Dec 1998 09:47:21 +1100 (EST) | From | Damien Miller <> | Subject | Re: /dev/one - why not /dev/repeat? |
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On Fri, 25 Dec 1998, Dave Cinege wrote:
> One use would be for low level file (device) acesss as mentioned in > the 'wipe' thread. Compounding two pipes, to strip 4,000,000,000 > line feeds, from using the 'yes' | 'tr' is slow and sloppy. It also > assumes both commands are actually available.
There is no reason to believe that a kernel-based version would be significantly faster or smaller than a user-space version.
cat >> repeat.c #include <stdio.h> int main(int argc, char **argv) { if (argc != 2) { fprintf(stderr, "Usage: repeat [text]\n"); exit(1); } while(1) printf("%s", argv[1]); exit(0); }
[dmiller@mothra dmiller]$ gcc repeat.c -o repeat [dmiller@mothra dmiller]$ strip repeat [dmiller@mothra dmiller]$ ls -l repeat -rwxrwxr-x 1 dmiller dmiller 2876 Dec 26 09:36 repeat
Surely that wasn't worth all the whinging.
Regards, Damien Miller
-- | "Bombay is 250ms from New York in the new world order" - Alan Cox | Damien Miller - http://www.ilogic.com.au/~dmiller
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