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diff --git a/content/blog/2022-07-31-bash-it.md b/content/blog/2022-07-31-bash-it.md deleted file mode 100644 index 18fceb8..0000000 --- a/content/blog/2022-07-31-bash-it.md +++ /dev/null @@ -1,242 +0,0 @@ -+++ -date = 2022-07-31 -title = "Upgrade Bash with Bash-It & Ble.sh" -description = "Learn how to increase the power of bash with Bash-It and Ble.sh." -+++ - -## Bash - -For those who are not familiar, -[Bash](https://en.wikipedia.org/wiki/Bash_(Unix_shell)) is a Unix shell -that is used as the default login shell for most Linux distributions. -This shell and command processor should be familiar if you've used -Linux (or older version of macOS) before. - -However, bash is not the only option. There are numerous other shells -that exist. Here are some popular examples: - -- [zsh](https://en.wikipedia.org/wiki/Z_shell) -- [fish](https://en.wikipedia.org/wiki/Fish_(Unix_shell)) -- [oksh](https://github.com/ibara/oksh) -- [mksh](https://wiki.gentoo.org/wiki/Mksh) -- [dash](https://en.wikipedia.org/wiki/Debian_Almquist_shell) - -While each shell has its differences, bash is POSIX compliant and the -default for many Linux users. Because of this, I am going to explore a -program called `bash-it` below that helps bash users increase -the utility of their shell without installing a completely new shell. - -### Installation - -First, if bash is not already installed on your system, you can -[download bash from GNU](https://www.gnu.org/software/bash/) or use your -package manager to install it. - -For example, this is how you can install bash on Fedora Linux: - -```sh -sudo dnf install bash -``` - -If you are not using bash as your default shell, use the -`chsh` command to change your shell: - -```sh -chsh -``` - -You should see a prompt like the one below. If the brackets -(`[]`) contain `bash` already, you're done, and -you can simply continue by hitting the Enter key. - -If the brackets contain another shell path (e.g. =/usr/bin/zsh=), enter -the path to the bash program on your system (it's most likely located -at `/usr/bin/bash`). - -```sh -Changing shell for <user>. -New shell [/usr/bin/bash]: -``` - -You must log out or restart the machine in order for the login shell to -be refreshed. You can do it now or wait until you're finished -customizing the shell. - -```sh -sudo reboot now -``` - -## Bash-it - -As noted on the [Bash-it](https://github.com/Bash-it/bash-it) -repository: - -> Bash-it is a collection of community Bash commands and scripts for -> Bash 3.2+. (And a shameless ripoff of oh-my-zsh 😃) - -Bash-it makes it easy to install plugins, set up aliases for common -commands, and easily change the visual theme of your shell. - -### Installation - -To install the framework, simply copy the repository files and use the -`install.sh` script provided. If you want, you can (and -should!) inspect the contents of the installation script before you run -it. - -```sh -git clone --depth=1 https://github.com/Bash-it/bash-it.git ~/.bash_it -~/.bash_it/install.sh -``` - -If you didn't restart your session after making bash the default, and -are currently working within another shell, be sure to enter a bash -session before using `bash-it`: - -```sh -bash -``` - -### Aliases - -Bash-it contains a number of aliases for common commands to help improve -efficiency in the terminal. To list all available options, use the -following command: - -```sh -bash-it show aliases -``` - -This will provide you a list that looks like the following text block. -Within this screen, you will be able to see all available options and -which ones are currently enabled. - -```txt -Alias Enabled? Description -ag [ ] the silver searcher (ag) aliases -ansible [ ] ansible abbreviations -apt [ ] Apt and dpkg aliases for Ubuntu and Debian distros. -atom [ ] Atom.io editor abbreviations -bash-it [ ] Aliases for the bash-it command (these aliases are automatically included with the "general" aliases) -bolt [ ] puppet bolt aliases -bundler [ ] ruby bundler -clipboard [ ] xclip shortcuts -composer [ ] common composer abbreviations -curl [x] Curl aliases for convenience. -... -``` - -To enable an alias, do: - -```sh -bash-it enable alias <alias name> [alias name]... -or- $ bash-it enable alias all -``` - -To disable an alias, do: - -```sh -bash-it disable alias <alias name> [alias name]... -or- $ bash-it disable alias all -``` - -### Plugins - -Similar to aliases, plugins are available with bash-it. You can find a -complete list of plugins in the same way as aliases. Simply execute the -following: - -```sh -bash-it show plugins -``` - -You will see the following output showing enabled and disabled plugins: - -```txt -Plugin Enabled? Description -alias-completion [ ] -autojump [ ] Autojump configuration, see https://github.com/wting/autojump for more details -aws [ ] AWS helper functions -base [x] miscellaneous tools -basher [ ] initializes basher, the shell package manager -battery [x] display info about your battery charge level -blesh [ ] load ble.sh, the Bash line editor! -boot2docker [ ] Helpers to get Docker setup correctly for boot2docker -browser [ ] render commandline output in your browser -``` - -To enable a plugin, do: - -```sh -bash-it enable plugin <plugin name> [plugin name]... -or- $ bash-it enable plugin all -``` - -To disable a plugin, do: - -```sh -bash-it disable plugin <plugin name> [plugin name]... -or- $ bash-it disable plugin all -``` - -### Themes - -There are quite a few pre-defined -[themes](https://bash-it.readthedocs.io/en/latest/themes-list/#list-of-themes) -available with bash-it. - -To list all themes: - -```sh -ls ~/.bash_it/themes/ -``` - -To use a new theme, you'll need to edit `.bashrc` and alter -the `BASH_IT_THEME` variable to your desired theme. For -example, I am using the `zork` theme. - -```sh -nano ~/.bashrc -``` - -```sh -export BASH_IT_THEME='zork' -``` - -Once you save your changes, you just need to exit your terminal and -create a new one in order to see your changes to the -`.bashrc` file. You can also `source` the file to -see changes, but I recommend starting a completely new shell instead. - -## ble.sh - -One big feature I was missing in Bash that both `zsh` and -`fish` have is an autosuggestion feature. To explain: as you -type, an autosuggestion feature in the shell will offer suggestions in a -lighter font color beyond the characters already typed. Once you see the -command you want, you can click the right arrow and have the shell -auto-complete that line for you. - -Luckily, the [Bash Line Editor](https://github.com/akinomyoga/ble.sh) -(ble.sh) exists! This program provides a wonderful autosuggestions -feature perfectly, among other features that I haven't tested yet. - -In order to install ble.sh, execute the following: - -```sh -git clone --recursive https://github.com/akinomyoga/ble.sh.git -make -C ble.sh install PREFIX=~/.local -echo 'source ~/.local/share/blesh/ble.sh' >> ~/.bashrc -``` - -Again, exit the terminal and open a new one in order to see the -newly-configured shell. - -## Restart the Session - -Finally, as mentioned above, you'll need to restart the session to -ensure that your user is using bash by default. - -You will also need to exit and re-open a shell (e.g., terminal or -terminal tab) any time you make changes to the `.bashrc` -file. - -```sh -sudo reboot now -``` |