ZSH: 在终端中隐藏计算机名

在使用终端时，如何在提示符中隐藏计算机名称？

目前，它显示的用户名和计算机名是这样的:

iTerm screenshot of user prompt

移除 anwarchoukah@anwars-mbp可以节省一些空间，因为我实际上知道我是谁:)

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Thanks to Wes Bos' amazing video series Command Line Power User , I managed to find the answer.. It's pretty simple. Stuff like that is set in the ZSH theme.

Open up .zshrc, change the theme from ZSH_THEME="agnoster" (which is what I was using) to something else.

Wes Bos has made a lovely theme called Cobalt2 which does exactly what I was looking for :)

I've now changed it to ZSH_THEME="cobalt2"

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最佳答案

Open up .zshrc, find the line reading export PS1 or maybe export PROMPT.

Remove the variable that is used for the hostname, could be %m or %M.

Zsh on Archlinux wiki

You can use colors and also have a prompt (or some information) on the right side.

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  1. step 1. one your .zshrc file by vim .zshrc

  2. step 2. go to end of your file.

  3. Paste this code:

careful indent again your code

prompt_context() {
if [[ "$USER" != "$DEFAULT_USER" || -n "$SSH_CLIENT" ]]; then
prompt_segment black default "%(!.%{%F{yellow}%}.)$USER"
fi
}

EDIT - explaining what this does

This will remove the machine@user name from the prompt IF: - you are not logged in as the default user - you are not in an ssh client shell

For most people, not needed, but if you regularly ssh to other machines and have multiple terminals open (eg remote sys admin type work) then this is extremely useful so when you look at your terminal you know which machine and user you are logged in as inside that terminal.

If you don't need/manage that type of complexity then use one of the other answers to just modify your export PROMPT/PS1 value.

* WARNING *

If you are using a custom shell or theme, this might not work and although the prompt will no longer show your computer and username it will keep throwing the error:

prompt_context:2: command not found: prompt_segment

For example, you can see with this (very popular) powerlevel9k it does not work. This is because the Powerlevel9k theme uses it's own magic and you simply add commands to your ~/.zshrc file to get the same result, eg:

POWERLEVEL9K_LEFT_PROMPT_ELEMENTS=(context)

More info on that here.

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Try to add export DEFAULT_USER=$USER to your .zshrc file

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Just add this to your ~/.zshrc file:

export DEFAULT_USER=\`whoami`
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Set DEFAULT_USER in ~/.zshrc file to your regular username. You can get your exact username value by executing whoami in the terminal. Something like this:

export DEFAULT_USER=username
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Just add prompt_context() {} to .zshrc

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On MacOS 10.15 Catalina:

  1. Open the file /private/etc/zshrc in a text editor
  2. Locate the comment: # Default prompt
  3. Modify the line that looks like this: PS1="%n@%m~ %& # "
  4. Save the file. You will be prompted to enter a password to save it.
  5. Load a new Terminal window.

For example, you can:

  • Remove "%n@%m" to get rid of both the username and computer name
  • Remove "%n" to get rid of the user name
  • Remove "%m" to get rid of the machine name
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Maybe this will help you [ Open Profile => Shell ]

PS1="~ $: ";clear;
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I like this approach (on my mac)

put in .zshrc

PS1="%n$ "

The terminal will look like

username$

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If you are using PowerLevel9k theme, there is a variable POWERLEVEL9K_CONTEXT_TEMPLATE that can change the view of your hostname and computer name.

The default option is %n@%m,

  • %n -> username
  • %m -> machine name

to hide hostname:

  1. Open the .zshrc file using sudo nano ~/.zshrc

  2. Add the line POWERLEVEL9K_CONTEXT_TEMPLATE="%n" at the end of .zshrc file

  3. Save the file.

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Install Oh My Zsh is the easiest solution for me:

https://ohmyz.sh/

One liner install:

sh -c "$(curl -fsSL https://raw.github.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"

Result:

enter image description here

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Unfortunately none of the .zshrc changes worked for me. Machine : Mac M1, Big Sur 11.4

So this is what worked.

I Navigated to where the ZSH themes were installed, opened my theme, agnoster in TextEdit, and modified the configuration where it chooses what do display, which by default is $username@%m.

Note : %m here is the machine name.

Here is a screenshot of delta. Yellow is what I did, Green is the default setting from github version of agnoster theme.

enter image description here

Voila this worked. Now to me it just displays the machine name, as I intended.

enter image description here

Hope that helps. Many links and SOF posts only made me click that solution.

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If you're using Powerlevel10k, then you can run p10k configure and configure the output a bit.

My username and computer-name was gone after having gone through it. It feel less hacky, than the other solutions here.

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I don't know why I can't find a simplified solution.

So here is the simplified one.

Just jump into the themes directory,

# ~/.oh-my-zsh/themes

Select the theme, as I have been using

# vim agnoster.zsh-theme

Just remove %m to remove and also you can remove the username too.

Once done, Just run

#zsh

To reflect the changes, Enjoy :)


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