How to write a shell script that starts tmux session, and then runs a ruby script

Question

I want to write a shell script that does this:

• First, create a tmux session
• Second, run a ruby script called \"run.rb\" INSIDE the tmux session
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Answer 1

I am not sure if this is still interesting for you, but I like to give you an answer / hint: in case you want, for example, start multiple tmux sessions by shell script and execute some command, you can do it like follow:

# just for test and show case
mkdir test_1 test_2

echo "current tmux sessions"
tmux ls

echo "kill all tmux sessions"
tmux kill-server

declare -a directories=("test_1" "test_2")

for i in "${directories[@]}"
do
cd ${i}
pwd
tmux new -d -s ${i} "ls -la"
cd ..
done

For the demonstration, the script will create a folder test_1 and test_2. After that I have defined an array with the two folders and run through the two folders and start a tmux session with the current folder name and execute the command "ls -la".

If you like to run through all sub directories in your current directory, please replace "for i in "${directories[@]}" with "for f in *; do". Here is an example that also exclude symbolic folders:

echo "current tmux sessions"
tmux ls

echo "kill all tmux sessions"
tmux kill-server dependencies

     for f in *; do
        if [[ -d "$f" && ! -L "$f" ]]; then
            cd ${f}
            pwd
            tmux new -d -s ${i} "ls -la"
            cd ..
        fi
    done

Here is a link to the gist file: https://gist.github.com/AICDEV/cf1497793bb1c27cb9b94d56c209ad6f