i'm using zsh on my mac (oh-my-zsh) and i don't understand why at the end of my output there is always this character: "%"
If i don't put export TERM="xterm-256color" in my ~/.zshrc i haven't that character:
Usually a bold % (or # for root) with reversed colors is used to signify a "partial" line in the output. That is a line, which is not terminated with a newline character.
As it seems to depend on the value of TERM I suspect an incompatibility between that value and the settings of terminal emulator. Contrary to the warning shown in your second screenshot, you actually should not set TERM in your ~/.zshrc (or anywhere inside the shell session). TERM should always be set by the terminal emulator itself. Its value (in conjunction with the terminfo terminal capability data base) tells the shell and other programs, which features a terminal emulator supports and how to use them. If the value is changed in the shell, the terminal emulator will not know about it. This may lead to programs sending control codes the terminal emulator does not understand correctly or at all.
In order to change the value of TERM you should change it in the terminal emulator settings. According to the iTerm 2 FAQ the settings is to be found at Preferences->Profiles->Terminal->Report Terminal Type.
I personally placed export PROMPT_EOL_MARK='' inside my ~/.zprofile and hide the character.
Related
I have a daily use case where I need to work with projects on different version of Java (8, 11, ...).
I would like to have it displayed in the right side prompt in my shell (ZSH with Oh-My-Zsh). I know of a dummy way (computationally expensive) to do it (just java --version to var and display it). I would like it to have it cached until I don't source a file (which is a specific project file that sets the new env vars for different java versions).
Do you have any ideas how to do this efficiently?
Br,
Stjepan
The PROMPT and RPROMPT variables can have both static and dynamic parts, so you can set the version there when you source the project file, and it will only be calculated one time. The trick is to get the quoting right.
This line goes in the project file that sets the env variables, somewhere after setting PATH to include the preferred java executable:
RPROMPT="${${=$(java --version)}[1,3]}"
The pieces:
RPROMPT= - variable for the right-side prompt.
"..." - the critical part. Variables in double quotes will be expanded then and there, so the commands within this will only be executed when the project file is sourced.
${...[1,3]} - selects the first three words of the enclosed expression. On my system, java --version returns three lines of data, which is way too big for a prompt; this reduces it to something manageable.
${=...} - splits the enclosed value into words.
$(java --version) - jre version info.
I've removed and added a few times now the following line to ~/.tmux.conf:
set -ga terminal-overrides ',xterm*:smcup#:rmcup#'
Which according to the person who provided it does the following:
to fool the multiplexers into thinking that the terminal has no "alternate screen" mode (such as that used by pico, mutt, etc). This is accomplished by setting termcap commands for the session.
The 'xterm*' part of the command should be set to whatever your terminal-emulator is declared as.
The end result is that the overflow ends up in the terminal's scrollback buffer instead of disappearing. Of course, since this is one static buffer, things will get messy as you switch between screen or tmux windows, but this is handy for quickly flicking up to see the output of an ls command or the such.
I don't quite understand the bolded section (emphasis added), but guess this is the source of what I'm seeing. It's causing some weird sort of unicode overspill upon exiting tmux.
Pasted as plaintext this text won't show up, but the symbol [001B]112 appears alongside the usual [exited]:
]112[exited]
(FWIW I think it has pasted in that line, but isn't displaying)
I followed this advice ("Use terminal scrollbar with tmux"), and while it does work, this is just ugly/annoying to see that upon exiting. Can anyone advise how to fix or avoid the output message?
Offhand, I would get the unwanted "message" is some hard-coded application (or script) which is helpfully resetting the xterm dynamic text cursor color. See XTerm Control Sequences in the description of Operating System Controls:
The dynamic colors can also be reset to their default
(resource) values:
...
Ps = 1 1 2 -> Reset text cursor color.
So... somewhere there is some script doing the equivalent of
echo -n -e '\e]112\a
The results probably depend most on what particular terminal emulator you are using. Both screen and tmux filter out escape sequences that their developers did not care to implement, and pass through those that the terminal "should" handle.
Just take a look at sentence you provided: "The 'xterm*' part of the command should be set to whatever your terminal-emulator is declared as."
In my case, the $TERM has value xterm-256color and the corresponding line in ~/.tmux.conf looks like:
set -g terminal-overrides "xterm-color256:smcup#:rmcup#"
I have written my own zsh (actually, I'm using zsh with oh-my-zsh, if it's relevant to the subject) prompt, its code follows:
PROMPT="%{$fg[green]%n%}#%{%m%}:%{$fg[yellow]%~%} %{$fg[red]%#$reset_color%} "
Everything is fine except the only issue: when I use autocompletion (press Tab), prompt collapses to first few symbols.
Here's the screenshot, collapsed prompt is in the left Terminal window, and the normal prompt is in the right window.
http://i.imgur.com/a1iWHdA.png
I'm not sure whether I got it exactly as you wanted but try this for a start:
local gr=${1:-'green'}
local bl=${2:-'blue'}
local re=${3:-'red'}
local wh=${4:-'white'}
local cy=${5:-'cyan'}
local ye=${6:-'yellow'}
export PROMPT="%F{$gr}%n%f#%m:%F{$ye}%~%f %F{$re}%#%f "
I'm not sure exactly what you did wrong, but it appears that those curly braces were messing with your prompt. By approach to prompt customization uses %F{$ID} where ID is one of the identifiers I defined for starting colouring and %f for stopping colouring. You can make text bold using %B (remove bold using %b).
Currently I have installed zsh in archlinux (in gnome 3), and every time when I open the terminal, there are 3 "???" before, then I have to change it manually on the options
Actually I have already set the default locale to UTF-8, and it works in the console before I enter the gnome.But after I enter the gnome interface, it did not work.
After I have changed that, it works, but there is another problem, everytime I type a command and press tab, all the command will be shifted right by 2 words, for example if I type ls, it will display like this:
ls becomes lsls
vim becomes vivim
The first 2 letters cannot be cleared, which is very annoying, can anyone help me about this? Thanks
I finally got how to solve this question
After we enabled the locale in the /etc/locale.gen and use locale-gen to generate it. I have to also set the locale system-wide,
create the /etc/locale.conf file
and set the default locale
localectl set-locale LANG="de_DE.UTF-8"
Then if I exit and log again, the oh-my-zsh will work fine.
I'm new to zsh and am using the ZSH_THEME="jnrowe", which works great for a little while.
It starts out and I get a prompt that looks like this:
Ξ ~ →
but if I run a command like: ssh it becomes:
↑255 ~ →
I suspect something is messing up the character that was creating the triple bar in the first one, but have no clue really as to what's going on. I could just pick a different theme, but I've noticed most of them with a fancy character in the prompt do the same thing.
Is this a special error code or something? Or is something just borking out?
I don't know the prompt theme "jnrowe" (it's not part of the default zsh distribution afaics), but I suspect this prompt includes the error code of the last command in its output.
Try to run "ls" or "true" and the number will disapper. Run "false" and it will be 1, run ssh without arguments and it will be 255. zsh preserves this value until you run the next command, so pressing ENTER many times will not clear it.
(This will be the same value that is stored in the shell variable "$?")