Re: [Mlterm-dev-en] Window title

[Benjamin R. H. <bha...@be...>]

On Fri, 21 Nov 2008, Mauricio wrote:

> Hi,
>
> Is it possible to change mlterm window title according to the 
> application in its foreground?

Hi Maurício,

It's certainly possible to change the title. To do that, you need to 
print to the terminal:

\033]0;whatever title you want\007

Where the special characters are:
\033 = 0x1b = ^[ = \e = ANSI escape.
\007 = 0x07 = ^G = BELL.
(Different escapes depending on how you're printing)

This usually depends on your shell. I use Zsh, which isn't the most common 
shell (though I highly, highly recommend it -- it's a very easy transition 
from Bash). With it, I accomplish what you want (and a lot more -- extra 
info in the titlebar) as:


######## ~/.zsh_titlebar ########
TITLE=$(print -n "\e]0;")
ENDTITLE=$(print -n "\007")
setopt promptsubst
TITLESEP='│' # ceçi n'est pas un pipe
[ -n "$NO_UTF8_TITLE" ] && TITLESEP='|'
function fancytitle () {
 	local c=$TITLESEP
 	printf "${TITLE}%s%s${ENDTITLE}" $1 "$(print -nP '%(!.ROOT $c .)%m $c %~ $c %n${STY+ $c $STY}')"
}
function preexec () {
 	if [ $SHLVL -eq 1 -a "$TERM" = "linux" ] ; then return ; fi
 	[[ -z "$NOTITLE" ]] || return
 	fancytitle "$1 $TITLESEP "
}
function precmd () {
 	if [ $SHLVL -eq 1 -a "$TERM" = "linux" ] ; then return ; fi
 	[[ -z "$NOTITLE" ]] || return
 	fancytitle ""
}
############## END ##############



The part you need is just:

function preexec () {
  # this will change whenever you run a command
  printf "\e]0;%s\007" $1
}
function precmd () {
  printf "\e]0;%s\007" "whatever you want your shell title to be"
}



But, since you probably use Bash, check out:

http://www.macosxhints.com/dlfiles/preexec.bash.txt

where someone created scripts that emulate Zsh's precmd/preexec in Bash. 
(And they include something similar to what my scripts above do.)


Best,
Ben