Bash Reference Manual
Bash Reference ManualReference Documentation for BashEdition , forBashVersion 2019Chet Ramey, Case Western Reserve UniversityBrian Fox, Free Software FoundationThis text is a brief description of the features that are present in the Bash shell ( , 12 May 2019).This is Edition , last updated 12 May 2019, ofThe GNU Bash Reference Manual , forBash, Version 1988 2018 Free Software Foundation, is granted to copy, distribute and/or modify this document under theterms of the GNU Free Documentation License, Version or any later versionpublished by the Free Software Foundation; with no Invariant Sections, noFront-Cover Texts, and no Back-Cover Texts.
The value returned by a command to its caller. The value is restricted to eight bits, so the maximum value is 255. field A unit of text that is the result of one of the shell expansions. After expansion, when executing a command, the resulting fields are used as the command name and arguments. filename A string of characters used to identify a ...
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