A symbolic link is a type of file that contains another path
name. It is a permanent file in the system directory. This
concept is similar to MPE/iX file equations.
A symbolic link file may contain a relative or absolute path
name. If a symbolic link to a relative path name is
encountered during path name traversal, the contents of the
symbolic link replace the symbolic link component and is
expanded into the path name being interpreted. If a
symbolic link to an absolute path name is encountered, the
contents of the symbolic link replaces all components up to
and including the symbolic link and is expanded into the
remainder of the path name.
Suppose that files file1, file2, and file3
originally existed under the group PXGROUP of account
DEVELOP. You have decided to move the files to the
/users/denis/bin/FILES directory. To ensure that all of
the applications that access those files will still function
properly, you must create symbolic links to those files.
Use the NEWLINK command to create the symbolic links.
:chdir /DEVELOP/PXGROUP
:newlink ./file1, /users/denis/bin/FILES/file1
:newlink ./file2, /users/denis/bin/FILES/file2
:newlink ./file3, /users/denis/bin/FILES/file3
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From this point on, anytime an application accesses these
files, the symbolic links will redirect the file system to
the new location of the files.
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 | NOTE:
This only applies to commands that operate on the target of
the links and not the links themselves. For example,
PURGELINK and STORE operate on the link itself and
not the target files.
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You can use this method to install newer versions of these
files in another location without overlaying their current
version, and changing the symbolic links to point to the
newer version. If at any time you need to access the old
version, you can point the symbolic links to that version of
the files.
