How to Copy the directory and its contents from local file system to VOB (Source control)
I know there are commands (mkdir, mkelem) to create directory , elements and copy the files one by one.
But I would like to know is there any easy way to do this as there are thousands of sub directories and files inside parent directory?
Yes: you can use clearfsimport, which is made precisely for that.
It will do the mkdir, and cleartool mkelem (or cleartool checkout if you import new versions on top of existing versioned elements)
See also "How can I use ClearCase to “add to source control …” recursively?":
clearfsimport -preview -rec -nset c:\sourceDir\* m:\MyView\MyVob\MyDestinationDirectory
About the clearfsimport options used here, see "Creating a new subdirectory structure in ClearCase?".
来源：https://stackoverflow.com/questions/39367793/cleartool-command-to-copy-the-directory-and-its-contents-from-local-file-system