Basic STSADM commands

Add the solution 

stsadm -o addsolution -filename {WSPFILENAME}

Deploy the solution 

stsadm -o deploysolution -name {WSPFILENAME} -url {SITEURL}

Install the feature 

stsadm -o installfeature -filename {FeatureFolder}\feature.xml

Activate the feature 

stsadm -o activatefeature -id {FEATUREID} -url {SITEURL} -force

Deactivate the feature 

Stsadm.exe -o deactivatefeature -filename