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Annotation of coherent/a/usr/man/COHERENT/getegid, revision 1.1

1.1     ! root        1: 
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        !             3: getegid()              COHERENT System Call             getegid()
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        !             8: Get effective group identifier
        !             9: 
        !            10: getegid()
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        !            12: Every process has two different versions of its group identifier,
        !            13: called the  real group identifier  and the effective  group iden-
        !            14: tifier.   The group identifiers  determine eligibility  to access
        !            15: files and use system privileges.  Normally, these two identifiers
        !            16: are identical.   However, for a set  group identifier load module
        !            17: (see exec), the real group identifier is that of the group's cur-
        !            18: rent group, whereas the effective group identifier is that of the
        !            19: load module  owner.  This  distinction allows system  programs to
        !            20: use  files  which  are  protected  from  groups that  invoke  the
        !            21: program.
        !            22: 
        !            23: getegid returns the effective group identifier.
        !            24: 
        !            25: ***** See Also *****
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        !            27: access,  COHERENT   system  calls,  exec,   geteuid(),  getgid(),
        !            28: getuid(), login, setuid()
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        !            64: COHERENT Lexicon                                           Page 1
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