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 Introduction | 
 
 
 
 
 
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 ============ | 
 
 
 
 
 
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 This is GNU Bash, version 5.1.  Bash is the GNU Project's Bourne | 
 
 
 
 
 
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 Again SHell, a complete implementation of the POSIX shell spec, | 
 
 
 
 
 
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 but also with interactive command line editing, job control on | 
 
 
 
 
 
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 architectures that support it, csh-like features such as history | 
 
 
 
 
 
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 substitution and brace expansion, and a slew of other features.  | 
 
 
 
 
 
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 For more information on the features of Bash that are new to this | 
 
 
 
 
 
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 type of shell, see the file `doc/bashref.texi'.  There is also a | 
 
 
 
 
 
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 large Unix-style man page.  The man page is the definitive description | 
 
 
 
 
 
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 of the shell's features.  | 
 
 
 
 
 
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 See the file POSIX for a discussion of how the Bash defaults differ | 
 
 
 
 
 
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 from the POSIX spec and a description of the Bash `posix mode'. | 
 
 
 
 
 
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 There are some user-visible incompatibilities between this version | 
 
 
 
 
 
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 of Bash and previous widely-distributed versions, bash-4.4 and | 
 
 
 
 
 
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 bash-5.0.  For details, see the file COMPAT.  The NEWS file tersely | 
 
 
 
 
 
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 lists features that are new in this release.  | 
 
 
 
 
 
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  | 
 
 
 
 
 
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 Bash is free software, distributed under the terms of the [GNU] General | 
 
 
 
 
 
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 Public License as published by the Free Software Foundation, | 
 
 
 
 
 
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 version 3 of the License (or any later version).  For more information, | 
 
 
 
 
 
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 see the file COPYING.  | 
 
 
 
 
 
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 A number of frequently-asked questions are answered in the file | 
 
 
 
 
 
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 `doc/FAQ'. | 
 
 
 
 
 
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 To compile Bash, type `./configure', then `make'.  Bash auto-configures | 
 
 
 
 
 
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 the build process, so no further intervention should be necessary.  Bash | 
 
 
 
 
 
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 builds with `gcc' by default if it is available.  If you want to use `cc' | 
 
 
 
 
 
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 instead, type | 
 
 
 
 
 
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         CC=cc ./configure | 
 
 
 
 
 
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 if you are using a Bourne-style shell.  If you are not, the following | 
 
 
 
 
 
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 may work: | 
 
 
 
 
 
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         env CC=cc ./configure | 
 
 
 
 
 
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 Read the file INSTALL in this directory for more information about how | 
 
 
 
 
 
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 to customize and control the build process.  The file NOTES contains | 
 
 
 
 
 
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 platform-specific installation and configuration information. | 
 
 
 
 
 
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 If you are a csh user and wish to convert your csh aliases to Bash | 
 
 
 
 
 
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 aliases, you may wish to use the script `examples/misc/alias-conv.sh' | 
 
 
 
 
 
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 as a starting point.  The script `examples/misc/cshtobash' is a | 
 
 
 
 
 
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 more ambitious script that attempts to do a more complete job. | 
 
 
 
 
 
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  | 
 
 
 
 
 
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 Reporting Bugs | 
 
 
 
 
 
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 ============== | 
 
 
 
 
 
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 Bug reports for bash should be sent to: | 
 
 
 
 
 
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         bug-bash@gnu.org | 
 
 
 
 
 
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 using the `bashbug' program that is built and installed at the same | 
 
 
 
 
 
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 time as bash. | 
 
 
 
 
 
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 The discussion list `bug-bash@gnu.org' often contains information | 
 
 
 
 
 
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 about new ports of Bash, or discussions of new features or behavior | 
 
 
 
 
 
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 changes that people would like.  This mailing list is also available | 
 
 
 
 
 
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 as a usenet newsgroup: gnu.bash.bug.  | 
 
 
 
 
 
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 When you send a bug report, please use the `bashbug' program that is | 
 
 
 
 
 
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 built at the same time as bash.  If bash fails to build, try building | 
 
 
 
 
 
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 bashbug directly with `make bashbug'.  If you cannot build `bashbug', | 
 
 
 
 
 
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 please send mail to bug-bash@gnu.org with the following information: | 
 
 
 
 
 
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         * the version number and release status of Bash (e.g., 2.05a-release) | 
 
 
 
 
 
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         * the machine and OS that it is running on (you may run | 
 
 
 
 
 
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           `bashversion -l' from the bash build directory for this information) | 
 
 
 
 
 
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         * a list of the compilation flags or the contents of `config.h', if | 
 
 
 
 
 
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           appropriate | 
 
 
 
 
 
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         * a description of the bug | 
 
 
 
 
 
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         * a recipe for recreating the bug reliably | 
 
 
 
 
 
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         * a fix for the bug if you have one! | 
 
 
 
 
 
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 The `bashbug' program includes much of this automatically. | 
 
 
 
 
 
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 Questions and requests for help with bash and bash programming may be | 
 
 
 
 
 
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 sent to the help-bash@gnu.org mailing list. | 
 
 
 
 
 
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 If you would like to contact the Bash maintainers directly, send mail | 
 
 
 
 
 
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 to bash-maintainers@gnu.org. | 
 
 
 
 
 
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 While the Bash maintainers do not promise to fix all bugs, we would | 
 
 
 
 
 
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 like this shell to be the best that we can make it. | 
 
 
 
 
 
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 Other Packages | 
 
 
 
 
 
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 ============== | 
 
 
 
 
 
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 This distribution includes, in examples/bash-completion, a recent version | 
 
 
 
 
 
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 of the `bash-completion' package, which provides programmable completions | 
 
 
 
 
 
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 for a number of commands. It's available as a package in many distributions, | 
 
 
 
 
 
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 and that is the first place from which to obtain it. If it's not a package | 
 
 
 
 
 
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 from your vendor, you may install the included version. | 
 
 
 
 
 
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 The latest version of bash-completion is always available from | 
 
 
 
 
 
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 https://github.com/scop/bash-completion. | 
 
 
 
 
 
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 Enjoy! | 
 
 
 
 
 
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  | 
 
 
 
 
 
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 Chet Ramey | 
 
 
 
 
 
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 chet.ramey@case.edu | 
 
 
 
 
 
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 Copying and distribution of this file, with or without modification, | 
 
 
 
 
 
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 are permitted in any medium without royalty provided the copyright | 
 
 
 
 
 
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 notice and this notice are preserved.  This file is offered as-is, | 
 
 
 
 
 
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 without any warranty. |