Prompt Expansion Options

prompt_cr

• print '\r' before printing the prompt.

prompt_subst

• turn on various expansions in prompts

prompt_bang

• if set, '!' is treated specially in prompt expansion.

prompt_percent

• if set, '%' is treated specially in prompt expansion.

transient_rprompt

• remove any right prompt from display when accepting a command line. this may be useful with terminals with other cut/paste methods.

prompt_sp

• attempt to preserve partial lines (no effect if 'prompt_cr' is unset).