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Test Your Knowledge in Computers #1001
Difficulty: Medium
Grace Brewster Murray Hopper was an American computer scientist and United States Navy rear admiral who found a moth in a computer stuck in a relay in 1947 and was later referred to as "Grandma COBOL" for her pioneering work in machine-independent programming languages.
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huh(1) [centos man page]

HUH(1)                                                        General Commands Manual                                                       HUH(1)

huh - redisplay last telegram received. SYNOPSIS
Huh reprints the last telegram that was sent to you. It is intended for use when telegrams get garbled on your screen. Huh will only work if you had the ``record'' flag turned on when the telegram was received. This flag can be turned on with the mesg(1) command. Normally, huh will delete each message immediately after displaying it. If the -k flag is given, the message is non deleted, and the next huh command will display it again. On the other hand, the -s flag suppresses the display of the message, so it will just be deleted. Normally, only the last message is retained, except when amin(1) is run with the -p flag. AUTHOR
Jan Wolter FILES
~/.lastmesg /etc/wrttmp SEE ALSO
mesg(1), write(1), amin(1) 7th Edition Jan 20, 2000 HUH(1)

Check Out this Related Man Page

MESG(1) 						    BSD General Commands Manual 						   MESG(1)

mesg -- display (do not display) messages from other users SYNOPSIS
mesg [n | y] DESCRIPTION
The mesg utility is invoked by a user to control write access others have to a terminal device. Write access is allowed by default, and pro- grams such as talk(1) and write(1) may display messages on the terminal. The first terminal device in the sequence of devices associated with standard input, standard output and standard error is affected. Options available: n Disallows messages. y Permits messages to be displayed. If no arguments are given, mesg displays the present message status to the standard output. EXAMPLES
Disallow messages from other users to the current terminal: mesg n Allow messages from other users to ttyp1 (assuming you are also logged in on that terminal): mesg y </dev/ttyp1 DIAGNOSTICS
The mesg utility exits with one of the following values: 0 Messages are allowed. 1 Messages are not allowed. >1 An error has occurred. COMPATIBILITY
Previous versions of the mesg utility wrote the message status to the standard error output and affected the terminal attached to standard error without first trying the standard input or output devices. SEE ALSO
biff(1), talk(1), wall(1), write(1) STANDARDS
The mesg utility conforms to IEEE Std 1003.1-2001 (``POSIX.1''). HISTORY
A mesg command appeared in Version 1 AT&T UNIX. BSD
May 5, 2002 BSD

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