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bash

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bash --version (return code: 0)

GNU bash, version 4.3.46(1)-release (x86_64-pc-linux-gnu)
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>

This is free software; you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

bash --help (return code: 0)

GNU bash, version 4.3.46(1)-release-(x86_64-pc-linux-gnu)
Usage: bash [GNU long option] [option] ...
 bash [GNU long option] [option] script-file ...
GNU long options:
 --debug
 --debugger
 --dump-po-strings
 --dump-strings
 --help
 --init-file
 --login
 --noediting
 --noprofile
 --norc
 --posix
 --rcfile
 --restricted
 --verbose
 --version
Shell options:
 -ilrsD or -c command or -O shopt_option  (invocation only)
 -abefhkmnptuvxBCHP or -o option
Type `bash -c "help set"' for more information about shell options.
Type `bash -c help' for more information about shell builtin commands.
Use the `bashbug' command to report bugs.

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