How to copy a directory with symbolic links and resolve them?

Question

I would like to recursively copy the contents of a directory which contains symbolic links (symlinks) as well as normal files with a Bash / Shell Script. I don’t know how to copy the symlink-contents. The pseudocode would look something like this:

for file in directory do
  if is symlink
    resolve symlink and copy its contents
  else 
    copy the file / folder

My directory-structure looks like this:

base/
  dir1/
  symlinkdir1*/ (--> ../somewhere/else/dirA)
    /file1
    /file2
  symlinkdir2*/ (--> ../somewhere/else/dirB)
    /file3
    /file4
  …

After the copy-procedure, I would like to have a directory-structure like this:

base/
  dir1/
  symlinkdir1/ (no symlink, actual directory)
    /file1
    /file2
  symlinkdir2/ (no symlink, actual directory)
    /file3
    /file4
  …

Answer 1

cp -rL /source /destination

r = recursive L = follow and expand symlinks