Group Identifier - Effective Vs. Real

Effective Vs. Real

Unix processes have an effective (EUID, EGID), a real (UID, GID) and a saved (SUID, SGID) ID. Normally these are identical, but in setgid processes they are different.

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Famous quotes containing the words effective and/or real:

    “Before anything else [Numa] decided that he must instill in his subjects the fear of the gods, this being the most effective measure with an ignorant, and at that time uncultured, people.”
    —Titus Livius (Livy)

    “Have you no beginning and end? Which heart is
    the real one? Which eye the seer?”
    —Anne Sexton (1928–1974)