NAME
       cd - Change working directory

SYNOPSIS
       cd ?dirName?


DESCRIPTION
       Change the current working directory to dirName, or to the
       home directory (as specified in the HOME environment vari-
       able)  if  dirName is not given.  If dirName starts with a
       tilde, then  tilde-expansion  is  done  as  described  for
       Tcl_TildeSubst.  Returns an empty string.


KEYWORDS
       working directory