User`s guide

DIFFERENCES
ooo specifies the octal offset within the block that contains the
difference.
ffffff specifies the value in the first file you are comparing.
ssssss specifies the value in the second file you are comparing.
xxxxxx specifies a bit-wise exclusive OR of the two values in the input
files.
If you use the /OUTPUT:filespec option with /BINARY, RT–11 stores the
DIFFERENCES listing in the file you specify (if there are any differences found),
instead of displaying the differences at the terminal.
The DIFFERENCES/BINARY command on magtapes is valid only with tapes
having 512-byte blocks.
/BLANKLINES
Includes blank lines in the file comparison. Normally, RT–11 disregards blank
lines.
/BYTES
Used with the /BINARY option, lists the differences byte by byte.
/CASE[:option]
Controls case sensitivity in a file comparison. The two options are EXA for case-
sensitive comparisons and GEN for case-insensitive comparisons.
/CASE[:EXA], the default, causes a case-sensitive file comparison. The upper-
and lowercase of the same character are treated as a difference.
/CASE:GEN causes a case-insensitive file comparison. The upper- and lowercase
of the same character are not treated as a difference.
/CHANGEBAR
Creates an output file that contains the 2nd-file with a changebar character next
to the lines in the 2nd-file that differ from the 1st-file. RT–11 inserts a vertical
bar next to each line that has been added to the 2nd-file, and a bullet (lowercase
letter o) next to each line that has been deleted.
The output defaults to the terminal. Use the /PRINTER option to list the output
on the printer. Specify an output file with the /OUTPUT:filespec option.
The following example command creates a listing of RTLIB.MAC with a
changebar or bullet character at the left margin of each line that is different
from RTLIB.BAK:
.DIFFERENCES/CHANGEBAR RTLIB.BAK RTLIB.MAC
To change the characters SRRCOM uses to indicate insertions and deletions in
DIFFERENCES listings, see customization patch 6.1 in the RT–11 Installation
Guide.
82 RT–11 Command Descriptions