Command:   elvrec - recover from a crash
Syntax:    elvrec [preservedfile [newfile]]
Flags:     (none)
Examples:  elvrec prog.c            # Recover prog.c
           elvrec prog.c savedprog.c # Recover under a new name

     Elvrec is used to recover an edit  session  after  a  crash.   Both
elvis  and  ex  keep  scratch files in /usr/tmp.  After an editor crash,
this information is used to reconstruct the file.  If elvrec  is  called
with no file name, it expects one of these temporary files on stdin.