Determining the last changelist synced to in Perforce

Question

A question that occasionally arises is what is the best way to determine the changelist that you last synced to in Perforce. This is often needed for things like injecting the c

Answer 1

The best I've found so far is to do your sync to whatever changelist you want to build and then use changes -m1 //...#have to get the current local changelist (revision).

p4 sync @CHANGELIST_NUM p4 changes -m1 //...#have | awk '{print $2}'

Gives you the changelist number that you can the use wherever you want. I am currently looking for a simpler way than p4 changes -m1 //...#have.