Jump to an Editor in “more”

An editor can be invoked from more using v; by default this tries to invoke $VISUAL, and then $EDITOR, and then just vi before giving up.

Note that using ! to invoke a command (!/bin/bash, etc.) won’t work, as by default more is executing $SHELL -c $COMMAND, which can fail if $SHELL is set to something exotic in /etc/passwd.

(Exotic shells in /etc/passwd can also cause commands executed via ssh to fail for the same reason.)