I would like to display a message (some texts) when I or others start a new konsole. How do I do this? Thanks in advance.

Put the text in each user's .bashrc file, if you want the messages to be different. If you don't, put it in /etc/profile

i.e.
[me@localhost ~]$ cat .bashrc
export PATH=$PATH:/usr/sbin/:/home/me/OpenOffice.org1.1.0/program:/usr/gnat/bin:/usr/java/jdk1.3.1_07/bin/
export PYTHONPATH=/usr/local/lib/python2.2/site-packages/gtk-2.0/:/usr/local/lib/python2.2/site-packages/
export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig

#aliases
alias ls="ls --color"
alias ll="ls -l"
alias umount="sudo umount"
alias mount="sudo mount"
alias shutdown="sudo /sbin/shutdown"
alias zork="~/Download/jzip201g/jzip ~/zork/zork_x/ZORK1.DAT"

#Customize bash prompt to look human...
PS1="[\u@\h \w]\\$ "

#The last thing in the file
echo "What is your command, my mistress?"

Now, of course, the question that's burning in everybody's mind is whether that's being said as Igor, faithful assistant to countless evil geniuses, or as a supplicant... o.O

Thanks for your help rose_bud.

I guess you'll never know... ;-)

Incidentally, root's is
[me@localhost ~]$ su
Password:
Whoohoo, ultimate power!
[root@localhost /home/me]#

*grin*

another method would be to create a file /etc/motd and write your message in it. so when you login next time, /etc/motd would be read and the message be displayed. but that works when you want the same message to be displayed for everyone

i already use /etc/motd but this only works if i ssh to my box not when I start a konsole.