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which_term.sh script

This script is used by prompt.sh to know the name of the terminal application you used.

It rely on xdotool on Linux to obtain the name of the terminal and on the variable TERM_PROGRAM on MacOS.

This script simply print the name of the terminal as output which is then compared to the variable UNICODE_SUPPORTED_TERM and TRUE_COLOR_TERM to know if your terminal is supported, i.e. if it was test and if the project now if your prompt support unicode character and/or true colors.

Below is the content of this simple script:

Content of which_term.sh (Click to reveal) 
which_term(){
  # Method to determine which terminal emulator is used.
  # Also set supported list of terminal emulator that support unicode char.
  # Main resource come from :
  # https://askubuntu.com/questions/476641/how-can-i-get-the-name-of-the-current-terminal-from-command-line
  # NO PARAM

  local term
  if who am i | grep tty &> /dev/null && ! [[ "$(uname)" =~ .*Darwin.* ]]
  then
    # If currently in tty but not on MacOS, i.e. Darwin, as all macos terminal
    # are launch in tty and not pty
    term="tty"
  elif [[ -n "${TERM_PROGRAM}" ]]
  then
    # If variable TERM_PROGRAM exists, means user is on MacOS, set term
    # accordingly
    term="${TERM_PROGRAM}"
  elif ! command -v xdotool &> /dev/null || ! xdotool getactivewindow &> /dev/null
  then
    # If xdotool not present, unable to determine the terminal emulator
    # application
    term="unkown"
  else
    term=$(sed -e "s/\x0//g" /proc/"$(xdotool getwindowpid "$(xdotool getactivewindow)")"/cmdline)
    case ${term} in
        # If this terminal is perl program, then the emulator's
        # name is likely the second part of it
        */perl* )
         term=$(basename "$(readlink -f "$(echo "${term}" | cut -d ' ' -f 2)")")
         ;;
        # If this terminal is python program, then the emulator's
        # name is likely the last part of it
        */python*)
          term=${term##*/}
          ;;
        # The special case of gnome-terminal
        *gnome-terminal-server* )
          term="gnome-terminal"
        ;;
        # For other cases, just take the 1st field of $term
        * )
          term=${term/% */}
        ;;
    esac
  fi
  echo ${term}
}
which_term
Last update: December 2, 2021
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