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12-16-2005
hi mbb.... thanks for the info.. I hope that is what they want me to do.... 
I can't place escape characters or quotes to those special characters when I use them as part of my arguments. I have to find a way to display a message that will indicate that a special character is included in my arguments...
Do you or does anyone know how to do this? Or is there really a way that my script may treat them as an ordinary part of my string arguments? The only hint I got from them (those who are asking me to do this exercise) is that I have to trap the special character before the shell performs the character's function.(
This is too tough for me... hope I can hear some feedback.. thanks so much in advance.....
I can't place escape characters or quotes to those special characters when I use them as part of my arguments. I have to find a way to display a message that will indicate that a special character is included in my arguments...
Do you or does anyone know how to do this? Or is there really a way that my script may treat them as an ordinary part of my string arguments? The only hint I got from them (those who are asking me to do this exercise) is that I have to trap the special character before the shell performs the character's function.
( This is too tough for me... hope I can hear some feedback.. thanks so much in advance.....
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LEARN ABOUT DEBIAN
wall
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