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Sticky bit

operating system
The bit in the mode of a Unix file which, if set for an executable, tells the kernel to keep the code loaded in swap space even after it has finished executing on the assumption that it is likely to be used again soon. This performance optimisation was included in some early (and recent?) versions of Unix to save reloading frequently used programs such as the shell or vi from disk.
If the sticky bit is set on a directory, an unprivileged user may not delete or rename files of other users in that directory even if he has write access to the directory.
The Unix “ls” command displays a set sticky bit as a “t” in the permissions of a file or directory.


Read Also:

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  • Sticky content

    World-Wide Web World-Wide Web pages that refer only or mostly to pages on the same website. This is important to some commercial sites who want users to keep accessing pages from their site because they receive advertising income from each hit. It does however somewhat miss the point of the World-Wide Web which is to […]

  • Sticky-end

    noun, Genetics, Biotechnology. 1. a single-stranded end of DNA or RNA having a nucleotide base sequence complementary to that of another strand, enabling the two strands to be connected by base pairing: produced in the laboratory with the use of restriction enzymes for genetic engineering purposes. noun 1. (informal) an unpleasant finish or death (esp […]

  • Sticky-fingered

    plural noun, Informal. 1. a propensity to steal. sticky-fingered adjective 1. (informal) given to thieving stick with sticky sticky fingers A propensity to steal, as in You’d better not leave any cash around; she’s known for her sticky fingers. This metaphor makes it seem as if valuables adhere naturally to a thief’s fingers. [ ; […]

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