NAME

cd − change working directory

SYNOPSIS

cd [ directory ]

DESCRIPTION

If specified, directory becomes the new working directory; otherwise, the value of the shell parameter $HOME is used.  The process must have execute (search) permission in directory.

Because a new process is created to execute each command, cd would be ineffective if it were written as a normal command; therefore, it is recognized and executed by the shell. 

SEE ALSO

pwd(1), sh(1), chdir(2).