How to change the terminal title to currently running process? - bash

Question

I know how to change the Terminal Window title. What I am trying to find out is how to make bash not zsh write out the currently running process so if I say do
$ ls -lF
I would get something like this for the title
/home/me/curerntFolder (ls -lF)
Getting the last executed command would be too late since the command has executed already, so it won't set the title with the command that was executed.

Answer 1

In addition to #markp-fuso's answer, here's how I did it to make it work with Starship.
function set_win_title() {
local cmd=" ($#)"
if [[ "$cmd" == " (starship_precmd)" || "$cmd" == " ()" ]]
then
cmd=""
fi
if [[ $PWD == $HOME ]]
then
if [[ $SSH_TTY ]]
then
echo -ne "\033]0; 🏛️ # $HOSTNAME ~$cmd\a" < /dev/null
else
echo -ne "\033]0; 🏠 ~$cmd\a" < /dev/null
fi
else
BASEPWD=$(basename "$PWD")
if [[ $SSH_TTY ]]
then
echo -ne "\033]0; 🌩️ $BASEPWD # $HOSTNAME $cmd\a" < /dev/null
else
echo -ne "\033]0; 📁 $BASEPWD $cmd\a" < /dev/null
fi
fi
}
starship_precmd_user_func="set_win_title"
eval "$(starship init bash)"
trap "$(trap -p DEBUG | awk -F"'" '{print $2}');set_win_title \${BASH_COMMAND}" DEBUG
Note this differs from the Custom pre-prompt and pre-execution Commands in Bash instructions in that the trap is set after starship init. Which I have noted in a bug.

Answer 2

UPDATE: my previous answer (below) displays the previous command in the title bar.
Ignoring everything from my previous answer and starting from scratch:
trap 'echo -ne "\033]0;${PWD}: (${BASH_COMMAND})\007"' DEBUG
Running the following at the command prompt:
$ sleep 10
The window title bar changes to /my/current/directory: (sleep 10) while the sleep 10 is running.
Running either of these:
$ sleep 1; sleep 2; sleep 3
$ { sleep 1; sleep2; sleep 3; }
The title bar changes as each sleep command is invoked.
Running this:
$ ( sleep 1; sleep 2; sleep 3 )
The title bar does not change (the trap does not apply within a subprocess call).
One last one:
$ echo $(sleep 3; echo abc)
The title bar displays (echo $sleep 3; echo abc)).
previous answer
Adding to this answer:
store_command() {
declare -g last_command current_command
last_command=$current_command
current_command=$BASH_COMMAND
return 0
}
trap store_command DEBUG
PROMPT_COMMAND='echo -ne "\033]0;${PWD}: (${last_command})\007"'
Additional reading materials re: trap / DEBUG:
bash guide on traps
SO Q&A

Answer 3

You can combine setting the window title with setting the prompt.
Here's an example using bashs PROMPT_COMMAND:
tputps () {
echo -n '\['
tput "$#"
echo -n '\]'
}
prompt_builder () {
# Window title - operating system command (OSC) ESC + ]
echo -ne '\033]0;'"${USER}#${HOSTNAME}:$(dirs)"'\a' >&2
# username, green
tputps setaf 2
echo -n '\u'
# directory, orange
tputps setaf 208
echo -n ' \w'
tputps sgr0 0
}
prompt_cmd () {
PS1="$(prompt_builder) \$ "
}
export PROMPT_COMMAND=prompt_cmd

Answer 4

For Linux OS Adding following function in bashrc file
Following Steps
Open bashrc file
vi ~/.bashrc
Write a function in bashrc file
function set-title() {
if [[ -z "$ORIG" ]]; then
ORIG=$PS1
fi
TITLE="\[\e]2;$*\a\]"
PS1=${ORIG}${TITLE}
}
save the file
source ~/.bashrc
call function
set-title "tab1"

Answer 5

The easiest way to change the title of the terminal I could think of is to use echo in shell script
echo "\033]0;Your title \007"
And to change open a new tab with new title name is
meta-terminal--tab-t"Your title"