greycat 1304349342 learn The parameter _ is often used as a dummy variable in read commands, to discard unwanted fields. Its value is overwritten automatically later. See $_ ormaaj 1407970666 forget ormaaj 1407970806 learn The parameter _ is often used as a dummy variable in read commands to discard unwanted fields. It should not be used this way in portable scripts due to known conflicting usages in several common shells. See also: $_