Using the OS X Terminal instead of the Finder to copy files – CNET April 29, 2015Posted by sandyclaus in Academic Technology.
When the Finder copies files, it first catalogs all files to be copied and then treats the copy process as one all-or-nothing copy routine. Because of this, if you copy multiple files and there is an error in accessing one, then the system will cancel the entire process and revert the system to its state before the files were moved. This setup is good from some standpoints since it ensures that all files were copied properly; however, it can be frustrating if you are trying to recover as many files as possible from one location such as a hard drive with bad sectors.
One approach to overcoming errors that prevent a full copy process is to copy in smaller batches, but this can be time-consuming and impede on organization. Another approach that may be more successful is to use the OS X Terminal to perform the copy. There are several commands that can be used to copy files from one location to the next in the Terminal, and using them is fairly straightforward.