DEFRAG
Type: External (6.0 and later)
Syntax:
DEFRAG [d:] [/F][/S[:]order] [/B][/skiphigh [/LCD|/BW|/GO] [/H]
DEFRAG [d:] [/V][/B][/skiphigh] [/LCD]|/BW|/GO] [/H]
Purpose: Optimizes disk performance by reorganizing the files on
the
disk (new with DOS Version 6).
Discussion
You should start DEFRAG only from MS-DOS. Starting DEFRAG from a program
such
as Microsoft Windows may cause you to lose data. The following is a list
of
DEFRAG exit codes:
0 The defragmentation was successful.
1 An internal error occurred.
2 The disk contained no free clusters. To operate, DEFRAG needs 1
free
cluster.
3 The user pressed CTRL+C to stop the process.
4 A general error occurred.
5 DEFRAG encountered an error while reading a cluster.
6 DEFRAG encountered an error while writing a cluster.
7 An allocation error occurred. To correct the error, use the
SCANDISK
command.
8 A memory error occurred.
9 There was insufficient memory to defragment the disk.
Options
/F Used to defragment files, ensuring that the disk contains no
empty
spaces between files.
/U Used to defragment files, leaving empty spaces between files.
/S Used to control the way in which files are sorted in their
directories.
Without this option, the current order of files will be maintained. You
can use
any combination of the following sort options . Do not put spaces
between the
values.
N Alphabetical order by name.
N- Reverse alphabetical order by name.
E Alphabetical order by extension.
E- Reverse alphabetical order by extension.
D By date and time, earliest first.
D- By date and time, latest first.
S By size, smallest first.
S- By size, largest first
/B Used to restart your computer after files have been reorganized.
/skiphigh Used to load DEFRAG into conventional memory, rather than
in
upper memory.
/LCD Specifies an LCD color scheme.
/BW Specifies a black and white color scheme.
/GO Used to disable the graphic mouse and graphic character set.
/H Used to move hidden files.
Example
If you want to load DEFRAG into conventional memory and run it specifying
that
the files on drive C be sorted alphabetically by name, enter the
following:
defrag c: /f /sn /skiphigh
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