% ls 
README.txt      conf.xml      conf.xml.org    conf.xml.org2  
text.txt        text2.txt     text3.txt

% pwd
/home/paul/dev
% su scott
[scott@server1] % ls
README.txt      conf.xml      conf.xml.org    conf.xml.org2  
text.txt        text2.txt     text3.txt
[scott@server1] % pwd
/home/paul/dev

% ls 
README.txt      conf.xml      conf.xml.org    conf.xml.org2  
text.txt        text2.txt     text3.txt

% pwd
/home/paul/dev
% su
# ls /sbin
shutdown        halt          poweroff 
# /sbin/poweroff
shutting down the system...

% ls 
README.txt      conf.xml      conf.xml.org    conf.xml.org2  
text.txt        text2.txt     text3.txt

% pwd
/home/paul/dev
%