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This implies the -n option no commands are executed. These are the strings that are subject to language translation when the current locale is not C or POSIX. This option allows the positional parameters to be set when invoking an interactive shell.Ī list of all double-quoted strings preceded by $ is printed on the standard output. If the -s option is present, or if no arguments remain after option processing, then commands are read from the standard input. If the -r option is present, the shell becomes restricted (see the " Restricted Shell" section below for more details. See the " Invocation" section below for more details. Make bash act as if it had been invoked as a login shell. For more information about interactive shells, see invocation, below. If the -i option is present, the shell is interactive. If there are arguments after the string, they are assigned to the positional parameters, starting with $0. If the -c option is present, then commands are read from string. The following options are also available: -c string Syntax bash OptionsĪll the single- character shell options documented in the description of the set builtin command can be used as options when invoking bash.
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bash can be configured to be POSIX-conformant by default. bash also incorporates useful features from the Korn and C shells ( ksh and csh).īash is intended to be a conformant implementation of the Shell and Utilities portion of the IEEE POSIX specification (IEEE Standard 1003.1). Bash is a sh-compatible command language interpreter that executes commands read from the standard input or from a file.