Echo's strange output


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# 1  
Echo's strange output

Hi,

Kindly help me to understand the behavior or logic of the below shell command
Code:
$ echo $!#
echo $echo $
$

Code:
$ echo !$#
echo $#
0

I am using GNU bash, version 3.2.25(1)-release

Last edited by royalibrahim; 07-25-2013 at 04:58 AM..
# 2  
What shell are you using ?
# 3  
Just some thoughts, according to history manpage..

"!" character starts a history substitution in bash.

and "#" is The entire command line typed so far.
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