PROMPT_COMMAND

best_prompt_command

export PROMPT_COMMAND='
  # Get relative path (~ instead of /home/user)
  relpath=$PWD
  case "$relpath" in
    $HOME*) relpath="~${relpath#$HOME}";;
  esac
  [ ${#relpath} -gt 30 ] && relpath="…${relpath: -30}"

  # Get current git branch if inside a repo
  branch=$(git rev-parse --abbrev-ref HEAD 2>/dev/null)

  # Get timestamp (HH:MM:SS)
  timestamp=$(date +"%H:%M:%S")

  # Choose separator based on branch presence
  sep=":"
  [ -n "$branch" ] && sep="·"

  # Build and print tab title
  printf "\033]0;%s%s%s%s [%s]\007" \
    "$(hostname)" "$sep" "$relpath" \
    "${branch:+ ($branch)}" "$timestamp"
'