#!/bin/bash

SESSION="Goals"
SESSIONS=$(tmux list-sessions -F "#S")

HAS_SESSION=false

while IFS= read -r line; do
    if [ "$line" = "$SESSION" ]; then
        HAS_SESSION=true
    fi
done <<< "$SESSIONS"

if [ "$HAS_SESSION" = true ]; then
    tmux kill-session -t "$SESSION"
fi