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       sleep.c - 9base - revived minimalist port of Plan 9 userland to Unix
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       ---
       sleep.c (170B)
       ---
            1 #include <u.h>
            2 #include <libc.h>
            3 
            4 void
            5 main(int argc, char *argv[])
            6 {
            7         long secs;
            8 
            9         if(argc>1)
           10                 for(secs = atol(argv[1]); secs > 0; secs--)
           11                         sleep(1000);
           12         exits(0);
           13 }