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Annotation of 43BSD/contrib/jove/teachjove.c, revision 1.1

1.1     ! root        1: /*************************************************************************
        !             2:  * This program is copyright (C) 1985, 1986 by Jonathan Payne.  It is    *
        !             3:  * provided to you without charge for use only on a licensed Unix        *
        !             4:  * system.  You may copy JOVE provided that this notice is included with *
        !             5:  * the copy.  You may not sell copies of this program or versions        *
        !             6:  * modified for use on microcomputer systems, unless the copies are      *
        !             7:  * included with a Unix system distribution and the source is provided.  *
        !             8:  *************************************************************************/
        !             9: 
        !            10: #include <sys/types.h>
        !            11: #include <sys/file.h>
        !            12: 
        !            13: #ifndef TEACHJOVE
        !            14: #    define TEACHJOVE  "/usr/lib/jove/teach-jove"
        !            15: #endif
        !            16: 
        !            17: #ifndef W_OK
        !            18: #    define W_OK 2
        !            19: #endif
        !            20: 
        !            21: extern char    *getenv();
        !            22: 
        !            23: main()
        !            24: {
        !            25:        char    cmd[256],
        !            26:                fname[256],
        !            27:                *home;
        !            28: 
        !            29:        if ((home = getenv("HOME")) == 0) {
        !            30:                printf("teachjove: cannot find your home!\n");
        !            31:                exit(-1);
        !            32:        }
        !            33:        (void) sprintf(fname, "%s/teach-jove", home);
        !            34:        if (access(fname, F_OK) != 0) {
        !            35:                (void) sprintf(cmd, "cp %s %s", TEACHJOVE, fname);
        !            36:                system(cmd);
        !            37:        }
        !            38:        (void) execlp("jove", "teachjove", fname, (char *) 0);
        !            39:        printf("teachjove: cannot execl jove!\n");
        !            40: }
        !            41: 

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