Types, shells, echoes and other phenomena ? [ was: Re: dapper sudo ]

[Peter Garrett]

On Wed, 5 Jul 2006 18:55:11 +1000
erik at dd.nec.com.au (Erik Christiansen) wrote:

> erik at dvalin:~$ which echo
> echo is a shell builtin

Interesting.

peter at prospero:~ $ which echo
/bin/echo
peter at prospero:~ $ which cd
peter at prospero:~ $

peter at prospero:~ $ type echo
echo is a shell builtin
peter at prospero:~ $ ls -l `which echo`
-rwxr-xr-x 1 root root 16552 2006-05-06 03:50 /bin/echo
peter at prospero:~ $ file `which echo`
/bin/echo: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), for
GNU/Linux 2.2.0, dynamically linked (uses shared libs), for GNU/Linux
2.2.0, stripped

peter at prospero:~ $ type cd
cd is a shell builtin

So... I'm more confused than I was now :) Are there two "echoes" ? ( An
echo of an echo perhaps ? 

Echo...echo...echo...echo.... ( fading out as it bouces between the
mountains..... )

;-)

Peter