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Annotation of coherent/a/usr/man/MULTI/unlink, revision 1.1

1.1     ! root        1: 
        !             2: 
        !             3: unlink()               COHERENT System Call              unlink()
        !             4: 
        !             5: 
        !             6: 
        !             7: 
        !             8: Remove a file
        !             9: 
        !            10: iinntt uunnlliinnkk(_n_a_m_e) cchhaarr *_n_a_m_e;
        !            11: 
        !            12: unlink removes the directory entry for the given file name, which
        !            13: in effect erases name from  the disk.  name cannot be opened once
        !            14: it has been unlinked.  If name is the last link, unlink frees the
        !            15: i-node and  data blocks.  Deallocation is delayed  if the file is
        !            16: open.  Other links to the file remain intact.
        !            17: 
        !            18: ***** Example *****
        !            19: 
        !            20: This example removes the files named on the command line.
        !            21: 
        !            22: 
        !            23: main(argc, argv)
        !            24: int argc; char *argv[];
        !            25: {
        !            26:         int i;
        !            27: 
        !            28: 
        !            29: 
        !            30:         for (i = 1; i < argc; i++) {
        !            31:                 if (unlink(argv[i]) == -1) {
        !            32:                         printf("Cannot unlink \"%s\"\n", argv[i]);
        !            33:                         exit(1);
        !            34:                 }
        !            35:         }
        !            36:         exit(0);
        !            37: }
        !            38: 
        !            39: 
        !            40: ***** See Also *****
        !            41: 
        !            42: COHERENT system calls, link(), ln, rm, rmdir
        !            43: 
        !            44: ***** Diagnostics *****
        !            45: 
        !            46: uunnlliinnkk returns zero when  successful.  It returns -1 if file does
        !            47: not exist, if the user  does not have write and search permission
        !            48: in the  directory containing file, or if file  is a directory and
        !            49: the invoker is not the superuser.
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        !            63: 
        !            64: COHERENT Lexicon                                           Page 1
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