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1986-02-12
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2KB
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54 lines
Scan -- Courtesy of
Dr. Bob's Utilities
444 Maple lane
St. Paul, MN 55126
Scan is not warranted in any way although it seems safe enough to me.
Scan displays the ASCII portions of any file. It ignores leading spaces,
isolated punctuation, leading digits, and any ascii string less than 4
characters long. The idea is to give you a quick look at the ASCII
messages in a file without showing you a lot of garbage. Ignoring
strings less than 4 characters long still gives you some garbage and
occasionally skips things you might like to see but it seems to be
a fair compromise.
Scan may be useful in guessing at undocumented features of .com
and .exe programs (like printing 'ARF ARF -- GOT YOU' after formatting
your hard drive).
It's also fun to scan commercial programs (especially Microsoft's)
looking for unusual messages. WordPerfect4.1 is a trip -- it includes
things like "There are no phonetic rules for this language." (in case
aliens from outer space try to run the spelling checker),
and one lengthy message about how you've probably lost all your work
and may have to reboot.
Command.com is also interesting:
"Intermediate file error during pipe"
"Cannot do binary reads from device"
although some of the messages are truncated because the high bit is set
on some characters a la WordStar. This has been fixed in DOS 3.x
Of course scan can also be used to read a text file although LIST is
probably a better choice since it is faster and allows paging backwards.
Scan shows the data continuously.
Use CTRL S to pause
CTRL C to abort
Enjoy -- Dr. Bob
(Bob Ray has been known to frequent Terrapin Station BBS often.
612/623-0152 24 hours a day --- 1200/2400
A BBS for Programmers and Technical Folk)