Bash Pocket Reference. Arnold Robbins

This pocket reference covers Bash, particularly version 4.1, the primary shell for GNU/Linux and Mac OS X. Bash is available for Solaris and the various BSD systems, and can be easily compiled for just about any other Unix system. The following topics are covered:HistoryOverview of featuresInvoking the shellSyntaxFunctionsVariablesArithmetic expressionsCommand historyProgrammable completionJob controlShell optionsCommand executionCoprocessesRestricted shellsBuilt-in commandsResources