I tried to use 'coypfile' function from folder to folder.
assuming I have file a.txt, b.txt in folder 'A', and a.txt, b.txt, c.txt in folder 'B', using command: copyfile('A','B'), looks like it has some behaviors below:
- it will only not replace folder 'B' with 'A', it seems like copy files in to folder 'A' to folder 'B', i.e. the file 'c.txt' in folder 'B' will not be removed
- copyfile will overwrite the files having the same name in folder 'B' by files from folder 'A', i.e. the file 'a.txt' and 'b.txt' in folder 'B' will be overwrite by 'a.txt' and 'b.txt' from folder 'A'
but I could not find any illustration regarding this behavior anywhere, am I correct with the observation described above?