Preexec before SSH command

[vroumvroum]

Hello,

I'm trying to change my tmux window name on the fly when i'm connecting to another server through SSH.
I tried the following :

preexec() { if [ "$1" == "ssh" ]; then tmux rename-window $3@$1; else tmux rename-window $(whoami)@$(hostname); fi }

After trying ssh myhost -l myuser
Preexec does not seem to be executed ...

Am i missing something ?

Thank you, regards, Greg.

[rcaloras]

Hey @vroumvroum,

I'm unable to recreate. Could you try using a simpler preexec command to confirm it's getting executed? e.g.

preexec() { echo "«$1»"; }

For example:

$ preexec() { echo "«$1»"; }
$ ssh rcaloras@bashhub.com
«ssh rcaloras@bashhub.com»

[vroumvroum]

Hey @rcaloras,

Thank you so much for answering.
It's working now. I didn't understand that command line arguments were all aggregated into "$1".

So I needed to cut "$1" or make a regex search on it. Here is what I did

preexec() { cmd=$(echo $1 | cut -d " " -f1); if [ "$cmd" == "ssh" ]; then tmux rename-window "$1"; fi }
precmd() { tmux rename-window "vroumvroum VDI"; }

Regards, Greg.

[rcaloras]

Great. Glad to hear everything is good. Thanks for using bash-preexec!