- <tt>-m NAME</tt> or <tt>--mode-name=NAME</tt> specifies that the name NAME should be used to save/load the history file. If NAME is fish, the regular fish history will be available.
- <tt>-p PROMPT_CMD</tt> or <tt>--prompt=PROMPT_CMD</tt> uses the output of the shell command \c PROMPT_CMD as the prompt for the interactive mode. The default prompt command is <tt>set_color green; echo read; set_color normal; echo "> "</tt>.
- <code>-s</code> or <code>--shell</code> enables syntax highlighting, tab completions and command termination suitable for entering shellscript code in the interactive mode.
- <code>-u</code> or <code>--unexport</code> prevents the variables from being exported to child processes (default behaviour).
- <code>-U</code> or <code>--universal</code> causes the specified environment variable to be made universal.
- <code>-x</code> or <code>--export</code> exports the variables to child processes.
\c read reads a single line of input from stdin, breaks it into tokens
based on the <tt>IFS</tt> environment variable, and then assigns one
token to each variable specified in <tt>VARIABLES</tt>. If there are more
tokens than variables, the complete remainder is assigned to the last variable.