To find, compare, and check in work from a command shell

From your view (if you work in a multiple-stream UCM project, your development view), produce a list of the file or directory versions checked out to your view.
To determine which changes are in a checked-out version:
- To see the differences between the previously checked-in version and the current version, type this command:
  cleartool diff -predecessor filename
- To see checkin comments, type this command:
  cleartool lshistory filename
Perform one of the following actions:
- To deliver changes for a given file, check it in by typing this command:
  cleartool checkin filename
- To cancel your changes for a file, undo its checkout by typing this command:
  cleartool unco filename
  
  During the cancel checkout operation, you can choose to save your changes in a view-private file.
- To keep your changes without delivering a file, leave it checked out.
  If you work in a multiple-stream UCM project and leave a file checked out, the predecessor version in the activity change set is delivered. If the checked-out version is the only version in the change set, no version of the element is delivered.