home *** CD-ROM | disk | FTP | other *** search
-
-
- ATTR (Attribute) Charles Petzold
- Command PC Magazine Vol 5, No 11
- Copyright 1986 Ziff-Davis Publishing Company
- ______________________________________________________
-
- Purpose: ATTR.COM permits display and modification of
- the archive, system, hidden, and read-only
- file attributes.
-
- Format: ATTR
- or
- ATTR *.*
- or
- ATTR [+A|-A] [+S|-S] [+H|-H] [+R|-R]
- [d:][path]filename[.ext]
-
- Remarks: Entering ATTR without any parameters, as in
- the first format shown above, produces a help
- display (essentially identical to the third
- form above) that shows which file attributes
- can be changed.
-
- ATTR.COM permits the use of the global ? and
- * characters (as in the second format above).
- Entering ATTR filename displays a specific
- file's attributes. For example,
-
- ATTR IBMBIO.COM
-
- returns the display
-
- IBMBIO.COM Arc Sys Hid R-O
-
- showing that the Archive, System, Hidden, and
- Read-Only bits of the attribute byte are set
- for this file.
-
- When wildcards are used to list the
- attributes of all the files in a directory,
- subdirectory names are shown as Dir (between
- the Arc and Sys in the example above).
- Unlike the DOS DIR command, ATTR lists hidden
- files, whether sought by specified filename
- or through a *.* listing. However, ATTR does
- not show Volume names or the dot and double-
- dot entries in subdirectories.
-
- The syntax for changing file attributes is
- indicated in the third format above. After
- typing ATTR (and a space) you simply precede
- the file specification with a plus or minus
- sign, followed by the letter A (Archive), S
- (System), H (Hidden), or R (Read-Only). A
- plus sign turns on the specified attribute; a
- minus sign turns it off. More than one
- attribute can be changed at once, and the
- attribute-designating letters may be entered
- in any order and in upper- or lowercase. No
- space may be used between the plus or minus
- and the letter that follows it, however.
-
- Example: To convert the file 85TAX.WKS to hidden and
- read-only, you would enter
-
- ATTR +H +R 85TAX.WKS
-
- Since DOS itself normally sets the Archive
- bit, entering
-
- ATTR 85TAX.WKS
-
- would produce the display
-
- 85TAX.WKS Arc Hid R-O
-
- Since the Hidden attribute has been set,
- however, the DIR command will produce the
- message, "File not found." And since the
- Read-Only flag has also been set, a DEL
- command will produce the message, "Access
- denied."
-
- Notes:
-
- 1. Requires DOS 2.0 or later.
-