MirOS Manual: cd(1)

CD(1)                        BSD Reference Manual                        CD(1)

NAME

     cd - change working directory

SYNOPSIS

     cd [directory]

DESCRIPTION

     directory is an absolute or relative pathname which becomes the new work-
     ing directory. The interpretation of a relative pathname by cd depends on
     the CDPATH environment variable (see below). For an explanation of the
     directory hierarchy, see hier(7).

     Note that cd is implemented as a built-in shell command and not as a
     stand-alone program. Because each process has its own working directory,
     a separate cd utility would have no effect (it would change the directory
     and exit, leaving the working directory in the parent unchanged). Dif-
     ferent shells may implement cd with features different from those
     described here. Please consult the manual for your specific shell.

     The cd command exits 0 on success or >0 if an error occurred.

ENVIRONMENT

     The following environment variables affect the execution of cd:

     CDPATH  If the directory operand does not begin with a slash ('/') char-
             acter, and the first component is not dot ('.') or dot-dot
             ('..'), cd searches for the directory relative to each colon-
             separated directory named in the CDPATH variable, in the order
             listed. The new working directory is set to the first matching
             directory found. An empty string in place of a directory pathname
             represents the current directory. If the new working directory
             was derived from CDPATH, it will be printed to the standard out-
             put. See sh(1) for details. Users of csh(1) use the variable
             cdpath instead.

     HOME    If cd is invoked without arguments and the HOME environment vari-
             able exists and contains a directory name, that directory becomes
             the new working directory.

     See environ(7) for more information on environment variables.

SEE ALSO

     csh(1), pwd(1), sh(1), chdir(2), environ(7), hier(7)

STANDARDS

     The cd command is expected to be IEEE Std 1003.2 ("POSIX.2") compatible.

MirOS BSD #10-current            June 5, 1993                                1

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