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hi experts please tell me the real difference between unix and linux at kernel structure (1 Reply)
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2. Shell Programming and Scripting
Hi,
I am using some codes that have been ported from unix to linux, and now the sorting no longer results in the desired ordering. I'm hoping to find a way to mimic the unix sort command in linux. The input file is structured the following:
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Hello all
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Sir ,
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What is the difference bettween linux and unix?
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:confused: Hi All
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CSaha (1 Reply)
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OK, I've used various versions of UNIX(Solaris, HPUX, etc..) over the years. Now the organization I work for is leaning towards more Linux based systems(Redhat, Suse, etc..)
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8. UNIX for Dummies Questions & Answers
Ok, I'm confused.
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This may/may not be a long answer to a short question.
I am learning the C programming language at home.I have seen some good books on the UNIX programming enviroment.However, there were a few books that hinted towards the Linux programming enviroment.Is there any difference between the two as... (1 Reply)
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WALL(1) User Commands WALL(1)
NAME
wall -- write a message to users
SYNOPSIS
wall [-n] [-t TIMEOUT] [file]
DESCRIPTION
Wall displays the contents of file or, by default, its standard input, on the terminals of all currently logged in users. The command will
cut over 79 character long lines to new lines. Short lines are white space padded to have 79 characters. The command will always put carriage
return and new line at the end of each line.
Only the super-user can write on the terminals of users who have chosen to deny messages or are using a program which automatically denies
messages.
Reading from a file is refused when the invoker is not superuser and the program is suid or sgid.
OPTIONS
-n, --nobanner
Supress banner
-t, --timeout TIMEOUT
Write timeout to terminals in seconds. Argument must be positive integer. Default value is 300 seconds, which is a legacy from
time when people ran terminals over modem lines.
-V, --version
Output version and exit.
-h, --help Output help and exit.
SEE ALSO
mesg(1), talk(1), write(1), shutdown(8)
HISTORY
A wall command appeared in Version 7 AT&T UNIX.
AVAILABILITY
The wall command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.
util-linux April 2011 util-linux
