04-03-2014
command OS specific, moved to linux...
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Question: Suppose I want to, from the terminal, use a shell script that would do the display image.jpg command to load multiple images from a directory all at the same time. One terminal, and for example 10 image files. Basically I want to execute 10 different commands simultaniously all from the... (4 Replies)
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I'm just wondering what the differences/relationships there are between processes, services, daemons and subsystems?
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Hi,
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Mark leo 87798798... (1 Reply)
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Objective
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=========================Shell Script code=================
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Hello,
I am debugging a program which works as daemon. It sigfaults, unfortunately I'm unable to generate core dump file. Here is what I am doing:
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unlimited
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Hi,
Is it possible to display processes which have been running for more than a 5hrs using a variation of the ps -ef command?
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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