Shell snippet to share the output of your terminal with another user on the system.

share_terminal_output.sh

#!/usr/bin/env -S bash -i

# Unofficial Bash strict mode
set \
  -o errexit \
  -o errtrace \
  -o noglob \
  -o nounset \
  -o pipefail
IFS=$'\n\t'
shopt -s inherit_errexit

set_and_check_target_tty() {
  # shellcheck disable=2016
  read -rp 'Target TTY (target user can check with `tty`): ' TARGET_TTY
  [[ -c ${TARGET_TTY} ]] ||
    {
      printf '%s\n' "${TARGET_TTY} is not a suitable TTY."
      exit 1
    }
}

set_and_check_target_tty

declare -a RC_COMMANDS
RC_COMMANDS+=(
  "PS1='(${SHLVL}) ${PS1}';"
  "exec &> >(sudo tee '${TARGET_TTY}');"
  "printf '\n'"
)

exec bash --rcfile <(printf %s "${RC_COMMANDS[@]}")