how do I stabilize camera in After Effects

[Will Cavanagh]

You can use motion tracking to stabilize motion, assuming there are distinctive shapes that are in the frame and unobscured. (See here.)
The problem with this is that you will need to have more resolution in the source footage than you will need for the end product. This technique will also be ineffective if the camera’s location moves at all. This means that jitter in where the camera is aimed can be removed as long as the camera is held in the same place. Deliberate camera moves will also be removed by this technique (as long as the track points are in frame) so it can take a lot of tweaking to make it work correctly. Obviously, your best option is to do it right in production so you don’t have to fix it in post! 😉

[Frank Hardie]

[Dayo Olufade] “I shot a city scene on my hand held and i want to stabilize the shot, how do I do that?”

You search The Cow, using the term “stabilize”, then read, read, and read some more. This topic has been covered at length, so there can be no excuse for not finding the information.