Jtdcftul

I don't like all long directory paths to feel up my terminal's space so, I truncate them through a python script. I have edited the .bashrc file and replaced PS1 to

export PROMPT_COMMAND='PS1="$(python /home/vinay/bash_promt.py)"'.

And when I do that terminal's title doesn't work anymore. It simply displays Terminal Which is irritating. I can change the title manually by running following command in bash:

PROMPT_COMMAND='echo -ne "33]0;CUSTOM TITLE07"'

Is there a way to set terminal's title to the custom prompt which is being set in my bash.

For gnome-terminal, the terminal title is set via PROMPT_COMMAND which is defined in /etc/profile.d/vte-2.91.sh.

PROMPT_COMMAND, as defined in this script, does two things:

• changes the terminal title using the OSC 0 escape sequence (33]0;NEW_TITLE07),




• changes the terminal's notion of the current directory using the OSC 7 escape sequence (33]7;NEW_CURRENT_DIRECTORY07, this is factored out to the __vte_osc7 function).

Should you remove the second one from your PROMPT_COMMAND, your newly opened terminal windows or tabs wouldn't open in the directory where you were standing in the previous terminal. Most likely you don't want this.

So, in your shell startup scripts, after sourcing vte-2.91.sh you have to construct your preferred PROMPT_COMMAND that sets the title in a similar manner to vte-2.91.sh, and sets the current working directory exactly as it's done by default.

I'm not aware of any way to refer to PS1's resolved value (that is, after substituting the username and such) inside PROMPT_COMMAND or anywhere else (let alone filter out the escape sequences such as color changes). If you wish to see the same string in your prompt and in the window title, I believe you need to duplicate the construction of that string for PS1 and PROMPT_COMMAND.

This will work for you

open ~/.bashrc . Find the line that says:

PS1="[e]0;${debian_chroot:+($debian_chroot)}u@h: wa]$PS1"

Comment out this line, by putting a # character in front of it:

# PS1="[e]0;${debian_chroot:+($debian_chroot)}u@h: wa]$PS1"

Now add this line (you may want to put it just after the commented-out line):

PROMPT_COMMAND='echo -ne "33]0;Custom Name07"'

Replace Custom Name with whatever you want to change the Terminal title to be.

Hope this helps.

The escape sequence to use is ESC]2;new titleBEL where ESC and BEL are the escape and bell characters. Like [e]2;NEWTITLEa]. Using #Bash escape sequences, changing the title in your prompt looks like:

export PS1='[e]2;new titlea]prompt > ' doc ref

So an example of a multi-color truncated bash prompt that also has a custom terminal title is:

export PS1='[e]2;$PWDa]e[93m$USERe[97m@e[90m$HOSTNAME e[93m$ e[0m'

In that example the terminal title will always reflect the present working directory ($PWD) and the terminal prompt will always look like the following regardless of what directory you are in: user@hostname $.

You can replace $PWD with CUSTOM TITLE to make the terminal title always reflect CUSTOM TITLE.

Update

Be careful when not wrapping non-printed characters in [ and ]. It works without it and I've been doing it without them for years. However, as I found out today with some setups, it can cause some issues in terminal. Below is a cleaner version using variables and wrapping the color codes:

T_YELLOW='[e[93m]'

T_WHITE='[e[97m]'

T_GRAY='[e[90m]'

T_DEFAULT='[e[0m]'

T_TITLE='[e]2;$PWDa]'

export PS1="${T_TITLE}${T_YELLOW}$USER${T_WHITE}@${T_GRAY}$HOSTNAME${T_YELLOW} $ ${T_DEFAULT}"