fish(1)

keymaps

  Shift-Tab ........... tab-completion with search
  Alt-Up / Alt-Down ... search history with token under the cursor
  Alt-l ............... list content of dir under cursor
  Alt-p ............... append '2>&1 | less;' to current cmdline

debug

  status print-stack-trace .. prints function stacktrace (can be used in scripts)
  breakpoint ................ halt script execution and gives shell (C-d | exit
                              to continue)