STSADM Command Line Reference

Database

AddcontentDB

stsadm.exe -o addcontentdb
           -url   -databasename
           [-databaseserver ]
           [-databaseuser ]

DeletcontentDB

stsadm.exe -o deletecontentdb  -url
           -databasename
           [-databaseserver ]

Feature

Activatefeature   
stsadm.exe -o activatefeature
           {-filename | -name | -id }
           [-url ]   [-force]

Deactivatefeature   
stsadm.exe -o deactivatefeature
           {-filename | -name | -id }
           [-url ]    [-force]

uninstallfeature   
stsadm.exe -o uninstallfeature
           {-filename | -name |
            -id }  [-force]