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Basics
* Common options: (coreutils)Common options.
* Coreutils: (coreutils).       Core GNU (file, text, shell) utilities.
* Date input formats: (coreutils)Date input formats.
* File permissions: (coreutils)File permissions.
                                Access modes.
* Finding files: (find).        Operating on files matching certain criteria.

Compression
* Gzip: (gzip).                 General (de)compression of files (lzw).

Development
* SSIP: (ssip).                 Speech Synthesis Interface Protocol.
* Speech Dispatcher: (speech-dispatcher).
                                Speech Dispatcher.

Editors
* nano: (nano).                 Small and friendly text editor.

Emacs
* Emacs FAQ: (efaq).            Frequently Asked Questions about Emacs.

GNU organization
* Maintaining Findutils: (find-maint).
                                Maintaining GNU findutils

BASH(1)                              General Commands Manual                              BASH(1)

NAME
       bash - GNU Bourne-Again SHell

SYNOPSIS
       bash [options] [command_string | file]

COPYRIGHT
       Bash is Copyright (C) 1989-2016 by the Free Software Foundation, Inc.

DESCRIPTION
       Bash is an sh-compatible command language interpreter that executes commands read from the
       standard input or from a file.  Bash also incorporates useful features from the Korn and C
       shells (ksh and csh).

       Bash  is  intended to be a conformant implementation of the Shell and Utilities portion of
       the IEEE POSIX specification (IEEE Standard 1003.1).  Bash can be configured to be  POSIX-
       conformant by default.

OPTIONS
       All of the single-character shell options documented in the description of the set builtin
       command can be used as options when the shell is invoked.  In  addition,  bash  interprets
       the following options when it is invoked:

       -c        If  the  -c  option is present, then commands are read from the first non-option
                 argument command_string.  If there are arguments after the  command_string,  the
                 first argument is assigned to $0 and any remaining arguments are assigned to the
                 positional parameters.  The assignment to $0 sets the name of the  shell,  which
                 is used in warning and error messages.
       -i        If the -i option is present, the shell is interactive.
       -l        Make bash act as if it had been invoked as a login shell (see INVOCATION below).
       -r        If  the -r option is present, the shell becomes restricted (see RESTRICTED SHELL
                 below).
       -s        If the -s option is present, or if no arguments remain after option  processing,
                 then  commands  are  read from the standard input.  This option allows the posi‐
                 tional parameters to be set when invoking an interactive shell.