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shebang n. 事情,工作,陋屋,住所 事情,工作,陋屋,住所 shebang n 1: an entire system; used in the phrase `the whole shebang' Shebang \She*bang"\, n. [Cf. {Shebeen}.] 1. A jocosely depreciative name for a dwelling or shop; a primitive dwelling; a shanty. [Slang, U.S.] [1913 Webster] 2. The structure of an object, process, organization, or anything viewed as complicated; -- used primarily in the phrase {the whole shebang}; as, it comes with unnecessary frills, but you have to buy the whole shebang. [informal] [PJC] 3. (computers) [Possibly derived from shell bang; the character ! is referred to in some computer contexts as bang.] The character sequence #!, which frequently begins shell scripts in a Unix system. [PJC] /sh*-bang'/ (From "{sharp}" and "{bang}") The {magic cookie} "#!" used in {Unix} to mark the start of a {script}, e.g. a {shell script} or {Perl script}. Under {Unix}, if the first two bytes of an {executable} file are "#!", the {kernel} treats the file as a script rather than a {machine code} program. The word following the "!" (i.e., everything up to the first {whitespace}) is used as the {pathname} of the {interpreter}. For example, if the first line of an executable is #!/usr/local/bin/perl the script will be treated as a {Perl} script and passed as an argument to /usr/local/bin/perl to be interpreted. Some variants of Unix also allow one or more parameters to be passed to the interpreter, for example, you can write #!/usr/bin/perl -w and the script will be started as if you typed /usr/bin/perl -w on the command line. Also, most modern kernels ignore any whitespace between the "!" and the interpreter pathname. Even some modern kernels have fairly small limits (e.g. 32) on the length of line they will accept, making long pathnames and arguments somewhat unportable. [Does anyone call this a "magic string"?] (1998-05-06) shebang: /sh@·bang/, n. [possibly a portmanteau of “sharp bang”] The character
sequence “#!” that frequently begins executable shell scripts under Unix. Probably derived from “shell bang” under the influence of American slang “the whole shebang” (everything, the works).
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