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334 lines
17 KiB
Markdown
334 lines
17 KiB
Markdown
## powerlevel9k Theme for ZSH
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Powerlevel9k is a theme for ZSH which uses [Powerline
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Fonts](https://github.com/powerline/fonts). It can be used with vanilla
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ZSH, [Oh-My-Zsh](https://github.com/robbyrussell/oh-my-zsh), or
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[Prezto](https://github.com/sorin-ionescu/prezto), and can also be installed
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using [antigen](https://github.com/zsh-users/antigen).
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Get more out of your terminal. Be a badass. Impress everyone in 'Screenshot Your
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Desktop' threads. Use powerlevel9k.
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You can check out some other users' configurations in our wiki: [Show Off Your
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Config](https://github.com/bhilburn/powerlevel9k/wiki/Show-Off-Your-Config).
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There are a number of Powerline ZSH themes available, now. The developers of
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this theme focus on four primary goals:
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1. Give users a great out-of-the-box configuration with no additional
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configuration required.
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2. Make customization easy for users who do want to tweak their prompt.
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3. Provide useful segments that you can enable to make your prompt even more
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effective and helpful. We have prompt segments for everything from unit test
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coverage to your AWS instance.
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4. Optimize the code for execution speed as much as possible. A snappy terminal
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is a happy terminal.
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Here is `powerlevel9k` in action, with [some simple settings](https://github.com/bhilburn/powerlevel9k/wiki/Show-Off-Your-Config#natemccurdys-configuration).
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### Table of Contents
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1. [Installation](#installation)
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2. [Customization](#prompt-customization)
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1. [Stylizing Your Prompt](https://github.com/bhilburn/powerlevel9k/wiki/Stylizing-Your-Prompt)
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2. [Customizing Prompt Segments](#customizing-prompt-segments)
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3. [Available Prompt Segments](#available-prompt-segments)
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3. [Troubleshooting](https://github.com/bhilburn/powerlevel9k/wiki/Troubleshooting)
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Be sure to also [check out the Wiki](https://github.com/bhilburn/powerlevel9k/wiki)!
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### Installation
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There are two installation steps to go from a lame terminal to a "Power Level
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9000" terminal. Once you are done, you can optionally customize your prompt.
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[Installation Instructions](https://github.com/bhilburn/powerlevel9k/wiki/Install-Instructions)
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1. [Install the Powerlevel9k Theme](https://github.com/bhilburn/powerlevel9k/wiki/Install-Instructions#step-1-install-powerlevel9k)
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2. [Install Powerline-Patched Fonts](https://github.com/bhilburn/powerlevel9k/wiki/Install-Instructions#step-2-install-powerline-fonts)
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No configuration is necessary post-installation if you like the default
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settings, but there are plenty of segment customization options available if you
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are interested.
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### Prompt Customization
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Be sure to check out the wiki page on the additional prompt customization
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options, including color and icon settings: [Stylizing Your Prompt](https://github.com/bhilburn/powerlevel9k/wiki/Stylizing-Your-Prompt)
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#### Customizing Prompt Segments
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Customizing your prompt is easy! Select the segments you want to have displayed,
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and then assign them to either the left or right prompt by adding the following
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variables to your `~/.zshrc`.
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| Variable | Default Value | Description |
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|----------|---------------|-------------|
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|`POWERLEVEL9K_LEFT_PROMPT_ELEMENTS`|`(context dir rbenv vcs)`|Segment list for left prompt|
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|`POWERLEVEL9K_RIGHT_PROMPT_ELEMENTS`|`(status history time)`|Segment list for right prompt|
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So if you wanted to set these variables manually, you would put the following in
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your `~/.zshrc`:
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POWERLEVEL9K_LEFT_PROMPT_ELEMENTS=(context dir rbenv vcs)
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POWERLEVEL9K_RIGHT_PROMPT_ELEMENTS=(status history time)
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#### Available Prompt Segments
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The segments that are currently available are:
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* [aws](#aws) - The current AWS profile, if active.
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* **background_jobs** - Indicator for background jobs.
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* [battery](#battery) - Current battery status.
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* [context](#context) - Your username and host.
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* [custom_command](#custom_command) - A custom command to display the output of.
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* [dir](#dir) - Your current working directory.
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* **go_version** - Show the current GO version.
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* **history** - The command number for the current line.
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* [ip](#ip) - Shows the current IP address.
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* **load** - Your machines 5 minute load average.
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* **node_version** - Show the version number of the installed Node.js.
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* **nvm** - Show the version of Node that is currently active, if it differs from the version used by NVM
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* **os_icon** - Display a nice little icon, depending on your operating system.
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* **php_version** - Show the current PHP version.
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* [ram](#ram) - Show free RAM and used Swap.
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* [rbenv](#rbenv) - Ruby environment information (if one is active).
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* **root_indicator** - An indicator if the user is root.
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* [rspec_stats](#rspec_stats) - Show a ratio of test classes vs code classes for RSpec.
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* **rust_version** - Display the current rust version.
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* [status](#status) - The return code of the previous command.
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* [symphony2_tests](#symphony2_tests) - Show a ratio of test classes vs code classes for Symfony2.
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* **symphony2_version** - Show the current Symfony2 version, if you are in a Symfony2-Project dir.
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* [time](#time) - System time.
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* [todo](http://todotxt.com/) - Shows the number of tasks in your todo.txt tasks file.
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* [vi_mode](#vi_mode)- Vi editing mode (NORMAL|INSERT).
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* **virtualenv** - Your Python [VirtualEnv](https://virtualenv.pypa.io/en/latest/).
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* [vcs](#vcs) - Information about this `git` or `hg` repository (if you are in one).
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##### aws
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If you would like to display the [current AWS
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profile](http://docs.aws.amazon.com/cli/latest/userguide/installing.html), add
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the `aws` segment to one of the prompts, and define `AWS_DEFAULT_PROFILE` in
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your `~/.zshrc`:
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| Variable | Default Value | Description |
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|----------|---------------|-------------|
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|`AWS_DEFAULT_PROFILE`|None|Your AWS profile name|
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##### battery
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This segment will display your current battery status (fails gracefully on
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systems without a battery). It is supported on both OSX and Linux (note that it
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requires `acpi` on Linux).
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| Variable | Default Value | Description |
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|----------|---------------|-------------|
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|`POWERLEVEL9K_BATTERY_CHARGING`|`"yellow"`|Color to indicate a charging battery.|
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|`POWERLEVEL9K_BATTERY_CHARGED`|`"green"`|Color to indicate a charged battery.|
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|`POWERLEVEL9K_BATTERY_DISCONNECTED`|`$DEFAULT_COLOR`|Color to indicate absence of battery.|
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|`POWERLEVEL9K_BATTERY_LOW_THRESHOLD`|`10`|Threshold to consider battery level critical.|
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|`POWERLEVEL9K_BATTERY_LOW_COLOR`|`"red"`|Color to indicate critically low charge level.|
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Note that you can [modify the `_FOREGROUND`
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color](https://github.com/bhilburn/powerlevel9k/wiki/Stylizing-Your-Prompt#segment-color-customization)
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without affecting the icon color.
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##### custom_command
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The `custom_...` segment allows you to turn the output of a custom command into
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a prompt segment. As an example, if you wanted to create a custom segment to
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display your WiFi signal strength, you might define a custom segment called
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`custom_wifi_signal` like this:
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POWERLEVEL9K_LEFT_PROMPT_ELEMENTS=(context time battery dir vcs virtualenv custom_wifi_signal)
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POWERLEVEL9K_CUSTOM_WIFI_SIGNAL="echo signal: \$(nmcli device wifi | grep yes | awk '{print \$8}')"
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POWERLEVEL9K_CUSTOM_WIFI_SIGNAL_BACKGROUND="blue"
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POWERLEVEL9K_CUSTOM_WIFI_SIGNAL_FOREGROUND="yellow"
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If you prefer, you can also define the function in your `.zshrc` rather than
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putting it in-line with the variable export, as shown above. Just don't forget
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to invoke your function from your segment! Example code that achieves the same
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result as the above:
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zsh_wifi_signal(){
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local signal=$(nmcli device wifi | grep yes | awk '{print $8}')
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local color='%F{yellow}'
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[[ $signal -gt 75 ]] && color='%F{green}'
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[[ $signal -lt 50 ]] && color='%F{red}'
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echo -n "%{$color%}\uf230 $signal%{%f%}" # \uf230 is
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}
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POWERLEVEL9K_CUSTOM_WIFI_SIGNAL="zsh_wifi_signal"
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POWERLEVEL9K_LEFT_PROMPT_ELEMENTS=(context time battery dir vcs virtualenv custom_wifi_signal)
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The command, above, gives you the wireless signal segment shown below:
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You can define as many custom segments as you wish. If you think you have
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a segment that others would find useful, please consider upstreaming it to the
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main theme distribution so that everyone can use it!
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##### context
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The `context` segment (user@host string) is conditional. This lets you enable
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it, but only display it if you are not your normal user or on a remote host
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(basically, only print it when it's likely you need it).
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To use this feature, make sure the `context` segment is enabled in your prompt
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elements (it is by default), and define a `DEFAULT_USER` in your `~/.zshrc`:
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| Variable | Default Value | Description |
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|----------|---------------|-------------|
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|`DEFAULT_USER`|None|Username to consider a "default context" (you can also use `$USER`)|
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##### dir
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The `dir` segment shows the current working directory. When using the "Awesome
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Powerline" fonts, there are additional glyphs, as well:
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| `Compatible` | `Powerline` | `Awesome Powerline` | Situation
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|------------|-----------|-------------------|----------------------------
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| None | None |  | At the root of your home folder |
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| None | None |  | Within a subfolder of your home directory |
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| None | None |  | Outside of your home folder |
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To turn off these icons you could set these variables to an empty string.
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POWERLEVEL9K_HOME_ICON=''
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POWERLEVEL9K_HOME_SUB_ICON=''
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POWERLEVEL9K_FOLDER_ICON=''
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You can limit the output to a certain length by truncating long paths.
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Customizations available are:
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| Variable | Default Value | Description |
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|`POWERLEVEL9K_SHORTEN_DIR_LENGTH`|`2`|If your shorten strategy, below, is entire directories, this field determines how many directories to leave at the end. If your shorten strategy is by character count, this field determines how many characters to allow per directory string.|
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|`POWERLEVEL9K_SHORTEN_STRATEGY`|None|How the directory strings should be truncated. By default, it will truncate whole directories. Other options are `truncate_middle`, which leaves the start and end of the directory strings, and `truncate_from_right`, which cuts starting from the end of the string.|
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|`POWERLEVEL9K_SHORTEN_DELIMITER`|`..`|Delimiter to use in truncated strings. This can be any string you choose, including an empty string if you wish to have no delimiter.|
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For example, if you wanted the truncation behavior of the `fish` shell, which
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truncates `/usr/share/plasma` to `/u/s/plasma`, you would use the following:
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POWERLEVEL9K_SHORTEN_DIR_LENGTH=1
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POWERLEVEL9K_SHORTEN_DELIMITER=""
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POWERLEVEL9K_SHORTEN_STRATEGY="truncate_from_right"
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In each case you have to specify the length you want to shorten the directory
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to. So in some cases `POWERLEVEL9K_SHORTEN_DIR_LENGTH` means characters, in
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others whole directories.
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##### ip
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This segment tries to examine all currently used network interfaces and prints
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the first address it finds. In the case that this is not the right NIC, you can
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specify the correct network interface by setting:
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| Variable | Default Value | Description |
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|----------|---------------|-------------|
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|`POWERLEVEL9K_IP_INTERFACE`|None|The NIC for which you wish to display the IP address. Example: `eth0`.|
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##### rspec_stats
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See [Unit Test Ratios](#unit-test-ratios), below.
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##### status
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This segment shows the return code of the last command.
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| Variable | Default Value | Description |
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|----------|---------------|-------------|
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|`POWERLEVEL9K_STATUS_VERBOSE`|`true`|Set to false if you wish to hide this segment when the last command completed successfully.|
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##### ram
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| Variable | Default Value | Description |
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|----------|---------------|-------------|
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|`POWERLEVEL9K_RAM_ELEMENTS`|Both|Specify `ram_free` or `swap_used` to only show one or the other rather than both.|
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##### symphony2_tests
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See [Unit Test Ratios](#unit-test-ratios), below.
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##### time
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| Variable | Default Value | Description |
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|----------|---------------|-------------|
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|`POWERLEVEL9K_TIME_FORMAT`|`'H:M:S'`|ZSH time format to use in this segment.|
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As an example, if you wanted a reversed time format, you would use this:
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# Reversed time format
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POWERLEVEL9K_TIME_FORMAT='%D{%S:%M:%H}'
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If you are using an "Awesome Powerline Font", you can add a time symbol to this
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segment, as well:
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# Output time, date, and a symbol from the "Awesome Powerline Font" set
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POWERLEVEL9K_TIME_FORMAT="%D{%H:%M:%S \uE868 %d.%m.%y}"
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##### vcs
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By default, the `vcs` segment will provide quite a bit of information. Further
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customization is provided via:
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| Variable | Default Value | Description |
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|`POWERLEVEL9K_HIDE_BRANCH_ICON`|`false`|Set to `true` to hide the branch icon from the segment.|
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|`POWERLEVEL9K_SHOW_CHANGESET`|`false`|Set to `true` to display the hash / changeset in the segment.|
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|`POWERLEVEL9K_CHANGESET_HASH_LENGTH`|`12`|How many characters of the hash / changeset to display in the segment.|
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**vcs Symbols**
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The `vcs` segment uses various symbols to tell you the state of your repository.
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These symbols depend on your installed font and selected `POWERLEVEL9K_MODE`
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from the [Installation](#Installation) section above.
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| `Compatible` | `Powerline` | `Awesome Powerline` | Explanation
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| `↑4` | `↑4` | 4 | Number of commits your repository is ahead of your remote branch
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| `↓5` | `↓5` | 5 | Number of commits your repository is behind of your remote branch
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| `⍟3` | `⍟3` | 3 | Number of stashes, here 3.
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| `●` | `●` |  | There are unstaged changes in your working copy
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| `✚` | `✚` |  | There are staged changes in your working copy
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| `?` | `?` |  | There are files in your working copy, that are unknown to your repository
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| `→` | `→` |  | The name of your branch differs from its tracking branch.
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| `☿` | `☿` |  | A mercurial bookmark is active.
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| `@` |  |  | Branch Icon
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| None | None | 2c3705 | The current commit hash. Here "2c3705"
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| None | None |  | Repository is a git repository
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| None | None |  | Repository is a Mercurial repository
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##### vi_mode
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This segment shows ZSH's current input mode. Note that this is only useful if
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you are using the [ZSH Line Editor](http://zsh.sourceforge.net/Doc/Release/Zsh-Line-Editor.html)
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(VI mode). You can enable this either by `.zshrc` configuration or using a plugin, like
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[Oh-My-Zsh's vi-mode plugin](https://github.com/robbyrussell/oh-my-zsh/blob/master/plugins/vi-mode/vi-mode.plugin.zsh).
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| Variable | Default Value | Description |
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|----------|---------------|-------------|
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|`POWERLEVEL9K_VI_INSERT_MODE_STRING`|`"INSERT"`|String to display while in 'Insert' mode.|
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|`POWERLEVEL9K_VI_COMMAND_MODE_STRING`|`"NORMAL"`|String to display while in 'Command' mode.|
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#### Unit Test Ratios
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The `symfony2_tests` and `rspec_stats` segments both show a ratio of "real"
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classes vs test classes in your source code. This is just a very simple ratio,
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and does not show your code coverage or any sophisticated stats. All this does
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is count your source files and test files, and calculate the ratio between them.
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Just enough to give you a quick overview about the test situation of the project
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you are dealing with.
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### Other
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Looking for more information? We put a lot of stuff in our Wiki!
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[Head to the Wiki](https://github.com/bhilburn/powerlevel9k/wiki)
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