Change home directory of OS user

Go to the path and create a directory(where i need) with new name and move the contents from old directory to new directory if any and do as below.
Vi /etc/passwd
Rename the old home to new home directory
Ex I need to change from /export/vol01 to /export/vol02
Earlier
oraguest:x:176:117::/export/vol01/home/oraguest:/bin/ksh
#later chage to
oraguest:x:176:117::/export/vol02/home/oraguest:/bin/ksh
and save it
:wq