Solved Tmux configuration

[balanga]

I have been looking at sysutils/tmux but am unable to figure out if I can start it initially with three windows with an autostart program in each.

Can anyone advise?

 

[Phishfry]

I have quad windows going on my virt box. There are no limits. Tmux handles enormous loads without a gulp.

Use this cheat sheet for tmux as a terminal multiplexer

Whether you're starting up an elaborate Raspberry Pi homelab or you're managing a building full of

opensource.com

 

[junkyalleycat]

Very simply, you could run

tmux new-session -d "cmd1"; tmux new-window "cmd2"; tmux new-window "cmd3"; tmux a

You could get more complex with this, notice the commands are contextless and assume the latest session. tmux commands accept targets and more, the man page for tmux is well layed out with all the details and all the commands and their arguments.

 

[Phishfry]

For the autostart part I use /etc/local.rc and just prefix everything you want to run with tmux. You will also assign it a pane number so you can attach and detach from it or where it is positioned in your screen arrangement.

Example here:

Bhyve started from tmux

I have been messing around with different ways to start VM's with Bhyve. My latest works good. I use the stdio console and sysutils/tmux. /etc/rc.local #!/bin/sh bhyveload -m 8G -S -d /vm/freebsd/freebsd1.img freebsd1 sleep 2 bhyveload -m 4G -S -d /vm/freebsd/freebsd2.img freebsd2 sleep 2...

forums.freebsd.org

 

[chrbr]

As an example I have a script as below to show a few log files.

#!/bin/sh
tmux new-session -n logs -d 'tail -F /var/log/maillog' \; \
split-window -d 'tail -F /var/log/messages'\; \
split-window -d 'tail -F /var/log/unbound.log'\; \
split-window \; \
select-layout tiled \; \
attach

 

[balanga]

Does tmux have configuration options for starting windows 1,2,3 with specific commands with parameters autostarting in each?

 

[Phishfry]

Tmux configuration

I have been looking at sysutils/tmux but am unable to figure out if I can start it initially with three windows with an autostart program in each. Can anyone advise?

forums.freebsd.org

 

[Jose]

Another example. Start a 6-node Redis cluster in six tmux windows. It's for Mac, but should be easy to modify

#!/bin/bash

# Prerequisites: brew install tmux redis

# Set Session Name
SESSION="Redis local cluster"
SESSIONEXISTS=$(tmux list-sessions 2> /dev/null | grep "$SESSION")

if [ $(uname -p) = "arm" ]
then
    BINPATH="/opt/homebrew/bin"
else
    BINPATH="/usr/local/bin"
fi
CONFIGPATH=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")

# Only create tmux session if it doesn't already exist
if [ "$SESSIONEXISTS" = "" ]
then
    # Start New Session with our name
    tmux new-session -d -s "$SESSION"
    tmux send-keys "cd $CONFIGPATH/7001" C-m "$BINPATH/redis-server $CONFIGPATH/7001/redis.conf" C-m

    CLUSTERCMD="redis-cli --cluster create 127.0.0.1:7001 "
    for i in $(seq 2 6)
    do
        tmux split-window -t "$SESSION"
        tmux send-keys -t "$SESSION" "cd $CONFIGPATH/700$i" C-m "$BINPATH/redis-server $CONFIGPATH/700$i/redis.conf" C-m
        tmux select-layout -t "$SESSION" tiled
        CLUSTERCMD="$CLUSTERCMD 127.0.0.1:700$i "
    done

    CLUSTERCMD="$CLUSTERCMD --cluster-replicas 1"
    echo $CLUSTERCMD
    echo "Run the command above to create the cluster. Only has to be run once."
fi

# Attach Session, on the Main window
tmux attach-session -t "$SESSION"

 

[balanga]

View: https://www.youtube.com/watch?v=-f9rz7joEOA


That showed me more than any other video on tmux, although comments mention:

I think an overview of the key bindings for copy-paste along with some examples of interaction with the system clipboard are required since its a must have feature for anyone using tmux in a productive workflow.

Also this looks useful:-

Learn tmux (Part 5) – How to Customize tmux and Make It Your Own! – Learn Linux TV

www.learnlinux.tv

Also this especially for FreeBSD users.

Configuring FreeBSD with Tmux