| 1 | Introduction | 
 
 
 
 
 | 2 | ============ | 
 
 
 
 
 | 3 |  | 
 
 
 
 
 | 4 | This is GNU Bash, version 5.1.  Bash is the GNU Project's Bourne | 
 
 
 
 
 | 5 | Again SHell, a complete implementation of the POSIX shell spec, | 
 
 
 
 
 | 6 | but also with interactive command line editing, job control on | 
 
 
 
 
 | 7 | architectures that support it, csh-like features such as history | 
 
 
 
 
 | 8 | substitution and brace expansion, and a slew of other features. | 
 
 
 
 
 | 9 | For more information on the features of Bash that are new to this | 
 
 
 
 
 | 10 | type of shell, see the file `doc/bashref.texi'.  There is also a | 
 
 
 
 
 | 11 | large Unix-style man page.  The man page is the definitive description | 
 
 
 
 
 | 12 | of the shell's features. | 
 
 
 
 
 | 13 |  | 
 
 
 
 
 | 14 | See the file POSIX for a discussion of how the Bash defaults differ | 
 
 
 
 
 | 15 | from the POSIX spec and a description of the Bash `posix mode'. | 
 
 
 
 
 | 16 |  | 
 
 
 
 
 | 17 | There are some user-visible incompatibilities between this version | 
 
 
 
 
 | 18 | of Bash and previous widely-distributed versions, bash-4.4 and | 
 
 
 
 
 | 19 | bash-5.0.  For details, see the file COMPAT.  The NEWS file tersely | 
 
 
 
 
 | 20 | lists features that are new in this release. | 
 
 
 
 
 | 21 |  | 
 
 
 
 
 | 22 | Bash is free software, distributed under the terms of the [GNU] General | 
 
 
 
 
 | 23 | Public License as published by the Free Software Foundation, | 
 
 
 
 
 | 24 | version 3 of the License (or any later version).  For more information, | 
 
 
 
 
 | 25 | see the file COPYING. | 
 
 
 
 
 | 26 |  | 
 
 
 
 
 | 27 | A number of frequently-asked questions are answered in the file | 
 
 
 
 
 | 28 | `doc/FAQ'. | 
 
 
 
 
 | 29 |  | 
 
 
 
 
 | 30 | To compile Bash, type `./configure', then `make'.  Bash auto-configures | 
 
 
 
 
 | 31 | the build process, so no further intervention should be necessary.  Bash | 
 
 
 
 
 | 32 | builds with `gcc' by default if it is available.  If you want to use `cc' | 
 
 
 
 
 | 33 | instead, type | 
 
 
 
 
 | 34 |  | 
 
 
 
 
 | 35 | CC=cc ./configure | 
 
 
 
 
 | 36 |  | 
 
 
 
 
 | 37 | if you are using a Bourne-style shell.  If you are not, the following | 
 
 
 
 
 | 38 | may work: | 
 
 
 
 
 | 39 |  | 
 
 
 
 
 | 40 | env CC=cc ./configure | 
 
 
 
 
 | 41 |  | 
 
 
 
 
 | 42 | Read the file INSTALL in this directory for more information about how | 
 
 
 
 
 | 43 | to customize and control the build process.  The file NOTES contains | 
 
 
 
 
 | 44 | platform-specific installation and configuration information. | 
 
 
 
 
 | 45 |  | 
 
 
 
 
 | 46 | If you are a csh user and wish to convert your csh aliases to Bash | 
 
 
 
 
 | 47 | aliases, you may wish to use the script `examples/misc/alias-conv.sh' | 
 
 
 
 
 | 48 | as a starting point.  The script `examples/misc/cshtobash' is a | 
 
 
 
 
 | 49 | more ambitious script that attempts to do a more complete job. | 
 
 
 
 
 | 50 |  | 
 
 
 
 
 | 51 | Reporting Bugs | 
 
 
 
 
 | 52 | ============== | 
 
 
 
 
 | 53 |  | 
 
 
 
 
 | 54 | Bug reports for bash should be sent to: | 
 
 
 
 
 | 55 |  | 
 
 
 
 
 | 56 | bug-bash@gnu.org | 
 
 
 
 
 | 57 |  | 
 
 
 
 
 | 58 | using the `bashbug' program that is built and installed at the same | 
 
 
 
 
 | 59 | time as bash. | 
 
 
 
 
 | 60 |  | 
 
 
 
 
 | 61 | The discussion list `bug-bash@gnu.org' often contains information | 
 
 
 
 
 | 62 | about new ports of Bash, or discussions of new features or behavior | 
 
 
 
 
 | 63 | changes that people would like.  This mailing list is also available | 
 
 
 
 
 | 64 | as a usenet newsgroup: gnu.bash.bug. | 
 
 
 
 
 | 65 |  | 
 
 
 
 
 | 66 | When you send a bug report, please use the `bashbug' program that is | 
 
 
 
 
 | 67 | built at the same time as bash.  If bash fails to build, try building | 
 
 
 
 
 | 68 | bashbug directly with `make bashbug'.  If you cannot build `bashbug', | 
 
 
 
 
 | 69 | please send mail to bug-bash@gnu.org with the following information: | 
 
 
 
 
 | 70 |  | 
 
 
 
 
 | 71 | * the version number and release status of Bash (e.g., 2.05a-release) | 
 
 
 
 
 | 72 | * the machine and OS that it is running on (you may run | 
 
 
 
 
 | 73 | `bashversion -l' from the bash build directory for this information) | 
 
 
 
 
 | 74 | * a list of the compilation flags or the contents of `config.h', if | 
 
 
 
 
 | 75 | appropriate | 
 
 
 
 
 | 76 | * a description of the bug | 
 
 
 
 
 | 77 | * a recipe for recreating the bug reliably | 
 
 
 
 
 | 78 | * a fix for the bug if you have one! | 
 
 
 
 
 | 79 |  | 
 
 
 
 
 | 80 | The `bashbug' program includes much of this automatically. | 
 
 
 
 
 | 81 |  | 
 
 
 
 
 | 82 | Questions and requests for help with bash and bash programming may be | 
 
 
 
 
 | 83 | sent to the help-bash@gnu.org mailing list. | 
 
 
 
 
 | 84 |  | 
 
 
 
 
 | 85 | If you would like to contact the Bash maintainers directly, send mail | 
 
 
 
 
 | 86 | to bash-maintainers@gnu.org. | 
 
 
 
 
 | 87 |  | 
 
 
 
 
 | 88 | While the Bash maintainers do not promise to fix all bugs, we would | 
 
 
 
 
 | 89 | like this shell to be the best that we can make it. | 
 
 
 
 
 | 90 |  | 
 
 
 
 
 | 91 | Other Packages | 
 
 
 
 
 | 92 | ============== | 
 
 
 
 
 | 93 |  | 
 
 
 
 
 | 94 | This distribution includes, in examples/bash-completion, a recent version | 
 
 
 
 
 | 95 | of the `bash-completion' package, which provides programmable completions | 
 
 
 
 
 | 96 | for a number of commands. It's available as a package in many distributions, | 
 
 
 
 
 | 97 | and that is the first place from which to obtain it. If it's not a package | 
 
 
 
 
 | 98 | from your vendor, you may install the included version. | 
 
 
 
 
 | 99 |  | 
 
 
 
 
 | 100 | The latest version of bash-completion is always available from | 
 
 
 
 
 | 101 | https://github.com/scop/bash-completion. | 
 
 
 
 
 | 102 |  | 
 
 
 
 
 | 103 | Enjoy! | 
 
 
 
 
 | 104 |  | 
 
 
 
 
 | 105 | Chet Ramey | 
 
 
 
 
 | 106 | chet.ramey@case.edu | 
 
 
 
 
 | 107 |  | 
 
 
 
 
 | 108 | Copying and distribution of this file, with or without modification, | 
 
 
 
 
 | 109 | are permitted in any medium without royalty provided the copyright | 
 
 
 
 
 | 110 | notice and this notice are preserved.  This file is offered as-is, | 
 
 
 
 
 | 111 | without any warranty. |