SharePoint: Add, deploy, Delete solution

For adding and deploying solution

C:\cd C:\Program Files\Common Files\Microsoft Shared\Web Server Ex
tensions\12\BIN

C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\12\BIN>stsa
dm -o addsolution -filename /.wsp

Go back in central admin, deploy the solution

Deleting Solution

from central admin, operations, solutions, Retract the solution
from command line run: stsadm -o deletesolution -name
e.g.
C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\12\BIN>stsa
dm -o deletesolution -name abc.wsp