I have a multi-line prompt in zsh. I've found that sometimes when I CTRL-C out of an autocompletion the previous line of the prompt gets erased unexpectedly. Here's a gif showing this happening with ls, vim and fzf: http://imgur.com/1jTrrzA
Here's an outline of events that happen:
ls all the files
ls then tab complete and CTRL-C out of the first completion (previous line of prompt gets erased)
ls then tab complete and CTRL-C out of the second completion. The previous line of the prompt doesn't get erased
same as step 2 but with vim instead
same as step 3 but I hit Enter instead of CTRL-C, this is my mistake. However, if I CTRL-C out of this example (the not-first completion) the previous line isn't erased
Show how fzf suffers from the same problem several times
I've found that the issue as shown during step 2 and step 4 still exists with a single line prompt. However fzf isn't broken with a single line prompt.
My entire prompt can be found at http://pastebin.com/JwufRy6m which is a modified version of https://github.com/sorin-ionescu/prezto/blob/master/modules/prompt/functions/prompt_sorin_setup to work with mercurial repositories at my company. The lines of interest (I think) in my prompt file are 166 and 167 (line 167 == line 166 minus $prompt_newline).
I've tried creating a multiline prompt without using $prompt_newline by doing:
NEWLINE=$'\n'
PROMPT=.....${NEWLINE}....
But that didn't help either which kinda makes sense to me because part of the problem still exists with single-line prompts.
How would I hide the computer name in the prompt while using the terminal?
At the moment it shows both username and computer name like so:
It would save some space by removing anwarchoukah#anwars-mbp, seeing as I actually know who I am:)
Try to add export DEFAULT_USER=$USER to your .zshrc file
On MacOS 10.15 Catalina:
Open the file /private/etc/zshrc in a text editor
Locate the comment: # Default prompt
Modify the line that looks like this: PS1="%n#%m~ %& # "
Save the file. You will be prompted to enter a password to save it.
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
step 1. one your .zshrc file by vim .zshrc
step 2. go to end of your file.
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.
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.
I like this approach (on my mac)
put in .zshrc
PS1="%n$ "
The terminal will look like
username$
Just add prompt_context() {} to .zshrc
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.
Voila this worked. Now to me it just displays the machine name, as I intended.
Hope that helps. Many links and SOF posts only made me click that solution.
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
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:
Open the .zshrc file using sudo nano ~/.zshrc
Add the line
POWERLEVEL9K_CONTEXT_TEMPLATE="%n" at the end of .zshrc file
Save the file.
Maybe this will help you [ Open Profile => Shell ]
PS1="~ $: ";clear;
Just add this to your ~/.zshrc file:
export DEFAULT_USER=\`whoami`
Install Oh My Zsh is the easiest solution for me:
https://ohmyz.sh/
One liner install:
sh -c "$(curl -fsSL https://raw.github.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"
Result:
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.
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 :)
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"
Lets say, the prompt is as below
run_scripts >
How to set that terminal tab title same as prompt
i.e Terminal tab tile also should be
run_scripts>
So that terminal title should dynamically update when the prompt changes.
Many terminals emulators are able to understand the special escaping : "\033]0;foo\007".
I know its a old post but i saw it today :
Here is the answer:
title `pwd`
if title command does not works in your shell then:
write a shell script with follwing contents (filename = title)
#!/usr/bin/tcsh -f
echo "^[]2;$1^G^[]1;$1^G"
then:
chmod +x title (give this script executable permission)
type:
title `pwd` <enter>
This single line command will change the title of the tab.
Simply run the command from terminal tab which title need to change-
PS1=$PS1"\[\e]0;My_Tab_Name\a\]"
Some Info:
The PS1 is a primary prompt variable which holds the characters displayed at the terminal prompt. You can set it whatever you want. However the above command will make it only work for current terminal session. Once you close the terminal and opena new one, it'll be the default one.
To make it permenant edit the PS1 variable in ~/.bashrc or ~/.zshrc file.
Benefits-
It help us to easily navigate over the tabs.
I know that I can exec a date command in my zsh prompt.
However, it shows the old time; to see the current time, I have to hit <return> and get a new prompt with the current time.
Is there a way to configure the zsh prompt to constantly update itself every second?
Note: I wrote this answer for a similar question, but seeing how this question has more views I think reposting my answer here would be useful.
This is in fact possible without resorting to strange hacks. I've got this in my .zshrc
RPROMPT='[%D{%L:%M:%S %p}]'
TMOUT=1
TRAPALRM() {
zle reset-prompt
}
The TRAPALRM function gets called every TMOUT seconds (in this case 1), and here it performs a prompt refresh, and does so until a command starts execution (and it doesn't interfere with anything you type on the prompt before hitting enter).
Source: http://www.zsh.org/mla/users/2007/msg00944.html (It's from 2007!)
Sounds like a pleasant request to me. If anything it makes more sense than showing the time when the prompt was displayed.
Fortunately Peter Stephenson posted a technique. Try something like this in .zshrc:
PROMPT="[%T] %n#%M %~ %# "
schedprompt() {
emulate -L zsh
zmodload -i zsh/sched
# Remove existing event, so that multiple calls to
# "schedprompt" work OK. (You could put one in precmd to push
# the timer 30 seconds into the future, for example.)
integer i=${"${(#)zsh_scheduled_events#*:*:}"[(I)schedprompt]}
(( i )) && sched -$i
# Test that zle is running before calling the widget (recommended
# to avoid error messages).
# Otherwise it updates on entry to zle, so there's no loss.
zle && zle reset-prompt
# This ensures we're not too far off the start of the minute
sched +30 schedprompt
}
schedprompt
This would be .... unpleasant in a standard zsh prompt (or bash, or other shells).
I suggest you'd be better off using Gnu Screen.
Screen can have a status line which can show the time.
Here's an example screenrc scroll down to "Red Hat Magazine A guide to GNU Screen" to see the sample (i'll reproduce that here) which will, when screen is run, show the current time in the lower right corner of the terminal:
~/.screenrc
hardstatus alwayslastline
hardstatus string '%{= kG}[ %{G}%H %{g}][%= %{=kw}%?%-Lw%?%{r}(%{W}%n*%f%t%?(%u)%?%{r})%{w}%?%+Lw%?%?%= %{g}][%{B}%Y-%m-%d %{W}%c %{g}]'
# Default screens
screen -t shell1 0
screen -t shell2 1
http://www.gnu.org/software/screen/
I run at path/test
rm -r *
The tutorial says that I can undo the change by
If one of these fancyeditor commands
changes your command line in a way you
did not intend, you can undo changes
withˆ_,ifyou can get it out of your
keyboard, orˆXˆU,otherwise.
However, I did not get the files back by pressing Ctrl-x Ctrl-u or Ctrl-x-u.
I also tried ^_ unsuccessfully by pressing Shift-6 Shift-- or Shift-6--.
How can you undo the removal in Zsh?
The undo ability is a feature of the Z Line Editor, the editor that you use while typing at the command line. It lets you undo things you type on the command line, like any good text editor. But it won't let you undo commands that you execute.
You're misunderstanding. They're talking about undoing changes to the command-line, before you press enter, not undoing the results of a command.