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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 | cd [ -qsLP ] [ arg ]
cd [ -qsLP ] old new
cd [ -qsLP ] {+|-}n
Change the current directory. In the first form, change the
current directory to arg, or to the value of $HOME if arg is not
specified. If arg is `-', change to the previous directory.
Otherwise, if arg begins with a slash, attempt to change to the
directory given by arg.
If arg does not begin with a slash, the behaviour depends on
whether the current directory `.' occurs in the list of directo-
ries contained in the shell parameter cdpath. If it does not,
first attempt to change to the directory arg under the current
directory, and if that fails but cdpath is set and contains at
least one element attempt to change to the directory arg under
each component of cdpath in turn until successful. If `.'
occurs in cdpath, then cdpath is searched strictly in order so
that `.' is only tried at the appropriate point.
The order of testing cdpath is modified if the option POSIX_CD
is set, as described in the documentation for the option.
If no directory is found, the option CDABLE_VARS is set, and a
parameter named arg exists whose value begins with a slash,
treat its value as the directory. In that case, the parameter
is added to the named directory hash table.
The second form of cd substitutes the string new for the string
old in the name of the current directory, and tries to change to
this new directory.
The third form of cd extracts an entry from the directory stack,
and changes to that directory. An argument of the form `+n'
identifies a stack entry by counting from the left of the list
shown by the dirs command, starting with zero. An argument of
the form `-n' counts from the right. If the PUSHD_MINUS option
is set, the meanings of `+' and `-' in this context are swapped.
If the -q (quiet) option is specified, the hook function chpwd
and the functions in the array chpwd_functions are not called.
This is useful for calls to cd that do not change the environ-
ment seen by an interactive user.
If the -s option is specified, cd refuses to change the current
directory if the given pathname contains symlinks. If the -P
option is given or the CHASE_LINKS option is set, symbolic links
are resolved to their true values. If the -L option is given
symbolic links are retained in the directory (and not resolved)
regardless of the state of the CHASE_LINKS option.
chdir Same as cd.
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