nixCraft

Here are some examples you may find interesting:

Display message welcome on screen
Write message File deleted to a file called /tmp/log.txt
Append message File deleted to a file called /tmp/log.txt
Append message and command output on screen
Append message and command output to a file
More help - just type command

__________________
Raj
Linux rulz.
I have never turned back in my life ; I shall not do so today.. haha

Good work Raj
Keep GOING

__________________
LivE Free 0r DiE
L!nux rul3z aLL

echo is a very powerful tool


#env
this command will show
HOSTNAME=viren.com
TERM=xterm
SHELL=/bin/bash
HISTSIZE=1000
KDE_NO_IPV6=1
SSH_CLIENT=10.16.5.139 1885 22
SSH_TTY=/dev/pts/0
USER=root
LS_COLORS=no=00:fi=00:di=00;34:ln=00;36i=40;33:s o=00;35:bd=40;33;01:cd=40;33;01r=01;05;37;41:mi= 01;05;37;41:ex=00;32:*.cmd=00;32:*.exe=00;32:*.com =00;32:*.btm=00;32:*.bat=00;32:*.sh=00;32:*.csh=00 ;32:*.tar=00;31:*.tgz=00;31:*.arj=00;31:*.taz=00;3 1:*.lzh=00;31:*.zip=00;31:*.z=00;31:*.Z=00;31:*.gz =00;31:*.bz2=00;31:*.bz=00;31:*.tz=00;31:*.rpm=00; 31:*.cpio=00;31:*.jpg=00;35:*.gif=00;35:*.bmp=00;3 5:*.xbm=00;35:*.xpm=00;35:*.png=00;35:*.tif=00;35:
KDEDIR=/usr
MAIL=/var/spool/mail/root
PATH=/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
INPUTRC=/etc/inputrc
PWD=/root
LANG=en_US.UTF-8
KDE_IS_PRELINKED=1
SSH_ASKPASS=/usr/libexec/openssh/gnome-ssh-askpass
SHLVL=1
HOME=/root
LOGNAME=root
SSH_CONNECTION=172.16.5.139 1885 172.16.5.235 22
LESSOPEN=|/usr/bin/lesspipe.sh %s
G_BROKEN_FILENAMES=1
_=/bin/env



and then understand what echo can do

like

#echo $PATH
#echo $HOSTNAME
#echo $HISTSIZE

what is himBH?
when i typed
# echo $-
the o/p displayed himBH.


try this
#echo $&

what is it?

i hv read abt the q parameter used with echo, as:

echo -e "\033[2q"

it turns on the num lock key's LED, but it wont effect the num keypad. i wanna know is it only for the LEDs or it actually works? (same for 0q, 1q, 3q)

Here's a little trick i often use, Brace Expansion:

what exactly does this command do?
echo $?

It will displays the exit status of a command, see

• The exit status of a command - Linux Shell Scripting Tutorial - A Beginner's handbook

__________________
Vivek Gite
Linux Evangelist
Be proud RHEL user, and let the world know about your enterprise choices! Join RedHat user group.
Always use CODE tags for posting system output and commands!
Do you run a Linux? Let's face it, you need help

i owe you great thanks,as i was going to go mad because of unix