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Annotation of 43BSD/bin/nice.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1980 Regents of the University of California.
        !             3:  * All rights reserved.  The Berkeley software License Agreement
        !             4:  * specifies the terms and conditions for redistribution.
        !             5:  */
        !             6: 
        !             7: #ifndef lint
        !             8: char copyright[] =
        !             9: "@(#) Copyright (c) 1980 Regents of the University of California.\n\
        !            10:  All rights reserved.\n";
        !            11: #endif not lint
        !            12: 
        !            13: #ifndef lint
        !            14: static char sccsid[] = "@(#)nice.c     5.2 (Berkeley) 1/12/86";
        !            15: #endif not lint
        !            16: 
        !            17: #include <stdio.h>
        !            18: 
        !            19: #include <sys/time.h>
        !            20: #include <sys/resource.h>
        !            21: 
        !            22: main(argc, argv)
        !            23:        int argc;
        !            24:        char *argv[];
        !            25: {
        !            26:        int nicarg = 10;
        !            27: 
        !            28:        if (argc > 1 && argv[1][0] == '-') {
        !            29:                nicarg = atoi(&argv[1][1]);
        !            30:                argc--, argv++;
        !            31:        }
        !            32:        if (argc < 2) {
        !            33:                fputs("usage: nice [ -n ] command\n", stderr);
        !            34:                exit(1);
        !            35:        }
        !            36:        if (setpriority(PRIO_PROCESS, 0, 
        !            37:            getpriority(PRIO_PROCESS, 0) + nicarg) < 0) {
        !            38:                perror("setpriority");
        !            39:                exit(1);
        !            40:        }
        !            41:        execvp(argv[1], &argv[1]);
        !            42:        perror(argv[1]);
        !            43:        exit(1);
        !            44: }

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