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- CHECK.COM
-
- syntax: CHECK keyword parameter1 parameter2 ...
-
- purpose: This is an extension of the DOS batch file capabilities. When
- run, Check returns an error level number to the batch file to report a
- condition.
- keywords and parameters information returned
- FileSize filespec Length of file in K
- FileFound filespec 0 - file found
- 1 - file not found
- FileText filespec `string' 0 - string found
- 1 - string not found
- DiskSpace [d:] number of whole 16k blocks free
- on indicated or default drive
- Memory number of 16k RAM modules
- VideoCard 0 - monochrome display adapter
- 1 - color graphics adapter
- 2 - enhanced graphics adapter
- Model machine ID byte
- 8087 0 - 8087 or 80287 installed
- 1 - 8087 & 80287 not installed
- 80287 0 - 8087 or 80287 installed
- 1 - 8087 & 80287 not installed
- Time current hour (0-23)
- Day current day (1-31)
- Month current month (1-12)
- VideoMode current video mode (0-16)
- Version DOS version (major number) in use
- KeyBoard 0 - keyboard buffer empty
- 1 - entry awaiting processing
- Keypress ASCII code of key pressed
-
- Operation: Enter the check command on a line in the batch file. Have the
- next line look at the returned error level number to determine the next
- operation. Example check memory
- if not errorlevel 16 goto short
- goto end
- :short
- echo minimum 256 K required to run
- :end
-
- Source: PC Magazine 10 Feb 1987 volume 6 number 3 page 299
-