Assign

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Assign [(name):] [{(target)}] [LIST] [EXISTS] [DISMOUNT] [DEFER]
       [PATH] [ADD] [PREPEND] [REMOVE] [VOLS] [DIRS] [DEVICES]

NAME, TARGET/M, LIST/S, EXISTS/S, DISMOUNT/S, DEFER/S, PATH/S, ADD/S,
PREPEND/S, REMOVE/S, VOLS/S, DIRS/S, DEVICES/S

C:

ASSIGN creates a reference to a file or directory. The reference
is a logical device name which makes it very convenient to specify
assigned objects using the reference instead of their paths.

If the NAME and TARGET arguments are given, ASSIGN assigns the
given logical name to the specified target. If the NAME given is
already assigned to a file or directory the new target replaces the
previous target. A colon must be included after the NAME argument.

If only the NAME argument is given, any assigns to that NAME are
removed. If no arguments whatsoever are given, all logical
assigns are listed.

NAME      --  the name that should be assigned to a file or directory
TARGET    --  one or more files or directories to assign the NAME to
LIST      --  list all assigns made
EXISTS    --  display the target of the specified assign. If NAME is
              not assigned, set the condition flag to WARN
DISMOUNT  --  remove the volume or device NAME from the dos list
DEFER     --  make an ASSIGN to a path or directory that not need to
              exist at the time of assignment. The first time the
              NAME is referenced the NAME is bound to the object
PATH      --  path is assigned with a non-binding assign. This means
              that the assign is re-evaluated each time a reference
              to NAME is done. Like for DEFER, the path doesn't have
              to exist when the ASSIGN command is executed
ADD       --  don't replace an assign but add another object for a
              NAME (multi-assigns)
PREPEND   --  like ADD, but puts the assign at the front of the list
REMOVE    --  remove an ASSIGN
VOLS      --  show assigned volumes if in LIST mode
DIRS      --  show assigned directories if in LIST mode
DEVICES   --  show assigned devices if in LIST mode