Update files

An update file contains information relating to the result of a comparison and is generated when one of the update process options is specified:

Note:

UPDCMS8, UPDMVS8, UPDPDEL, UPDREV, UPDREV2, and UPDSEQ0 do not generate an update file after a comparison of matching files (Return Code = 0).
Dates, where applicable, in the heading lines of update files are in the format MM/DD/YYYY.
All "do not process" options, and DPLINE or CMPLINE process statements are invalid when used with the process options UPDCMS8, UPDMVS8, UPDSEQ0, UPDLDEL, and UPDPDEL. The "do not process" options are cancelled with error notification ASMF014.

Update files are normally used as input to post-processing programs and can be specified besides the normal listing output file.

On the following pages, descriptions and examples are given of the contents of the update file produced for each of the update (UPD…) process options.

In most of the examples shown, the same two input files are used. The contents of the old file are shown in Figure 1. The contents of the new file are shown in Figure 2.

Figure 1. The “Old” input file used in most of the update examples

This line is reformatted; the  spacing  in  the  "new"  file  differs.  00000100
This line is the same in both files.                                    00000200
This line differs from the text in the "new" file.                      00000300
This line is the same in both files.                                    00000400

Figure 2. The “New” input file used in most of the update examples

This line is reformatted; the spacing in the "new" file differs.        00000100
This line is the same in both files.                                    00000200
This line differs from the text in the "old" file.                      00000300
This line is the same in both files.                                    00000400
This line is in the "new" file, but not in the "old".                   00000500