Changing the terminal title to the last shell command

trap 'echo -e "\e]0;$BASH_COMMAND\007"' DEBUG
You can set the previous bash command as the terminal title by this command. Explanation: -trap assigns a command to execute at a given bash signal. -in the $BASH_COMMAND you find the last command -you can set the terminal title with the escape sequence: \e]0;this is the title\007 -to let the echo care about the backslashes give the -e to it Since trap is a built in bash command you find more informatin in 'man bash'for more Source: http://www.davidpashley.com/articles/xterm-titles-with-bash.html

8
By: Vereb
2009-09-29 21:09:21

2 Alternatives + Submit Alt

What Others Think

Holy crap, that's nice! I've got plenty of aliases that wrap lengthy commands and give me feedback in the titlebar. Your trap combined with a PROMPT_COMMAND opens up a whole new world! Thanks.
flatcap · 472 weeks and 3 days ago
Doesn't seems to work when sending process in background using "&"
eastwind · 472 weeks and 3 days ago
I don't have a problem with background tasks -- they show up as expected. However, I do see an unnecessary newline after every command. Try changing the command to use: echo -ne
flatcap · 472 weeks and 2 days ago
Just for fairness, I found the similar trick in zsh: http://www.davidpashley.com/articles/xterm-titles-with-bash.html Although for the behaviour to be really identical, I'd change the code from the above URL to: # Last command on window title: if [ "$SHELL" = '/bin/zsh' ] then case $TERM in rxvt|*term|linux) preexec () { print -Pn "\e]0;$1\a" } ;; esac fi
Patola · 471 weeks and 5 days ago
Yes, you are right, i found it there. I didn't want to be unfair. I started to collect these useful scripts here. I should have mention the source, sorry!
Vereb · 471 weeks and 4 days ago
What about bash ENV.? does any remedy there?
krax · 356 weeks and 1 day ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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