cd ?dirName?
Changes the current working directory to
dirName, or the home directory (as
given by the HOME environment variable) if
dirName isn't given. Returns an empty
string.
pwd
Returns the full path name of the current working directory.
glob ?-nocomplain? ?--? pattern ?pattern ...?
Returns a list of the names of all files that match
any of the pattern arguments (special
characters ?, *, [],
{}, and \). If -nocomplain
isn't specified, an error occurs if the return list
would be empty.
file dirname name
Returns all of the characters in name
up to but not including the last / character.
Returns . if name contatins no
slashes, / if the last slash in
name is its first character.
file rootname name
Returns all of the characters in name up
to but not including the last character. Returns
name if it doesn't contain any dots or
it it doesn't contain any dots after the last slash.
file tail name
Returns all of the characters in name
after the last / character. Returns
name if it contains no slashes.
file extension name
Returns all of the characters in name
after and including the last dot. Returns an empty
string if there is no dot in name or no
dot after the last slash in name.
file exists name
Returns 1 if name exists and
the current user has seach privilege for the
directories leading to it, 0 otherwise.
file executable name
Returns 1 if name is
executable by the current user,
0 otherwise.
file owned named
Returns 1 if name is owned by
the current user, 0 otherwise.
file readable name
Returns 1 if name is readable
by the current user, 0 otherwise.
file writable name
Returns 1 if name is
writable by the current user, 0 otherwise.
file type name
Returns a string giving the type of the file
name. The return value will be one of
file, directory,
characterSpecial, blockSpecial,
fifo, link, socket.
file isdirectory name
Returns 1 if name is a
directory, 0 otherwise.
file isfile name
Returns 1 if name is a
file, 0 otherwise.
file size name
Returns a decimal string giving the size of the file
name in bytes.
file stat name arrayName
Invokes stat system call on
name and sets elements of
arrayName to hold information returned
by stat. The following elements are set, each
as a deciamal string: atime, ctime,
dev, gid, ino, mode,
mtime, nlink, size,
and uid.
file lstat name arrayName
Invokes the lstat system call on
name and sets elements of
arrayName to hold information returned
by lstat. This option is identical to the
stat option unless name refers
to a symbolic link, in which case this command returns
information about the link instead of the file to which
it points.
file atime name
Returns a decimal string giving the time at which file
name was last accessed, measured in
seconds from 12:00 A.M. on January 1, 1970.
file mtime name
Returns a decimal string giving the time at which file
name was last modified, measuered in
seconds from 12:00 A.M. on January 1, 1970.
file readlink name
Returns the value of the symbolic link given by
name (the name of the file to which
it points).