Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
I have two directories with similar files, (one being a backup), what is a command that allows me to copy over only the files that are different to the backup?
cp -rf firstDir/* secondDir is awfully inefficient, since a lot of the files are the same.
Rsync is the best way
note the trailing / on ‘from’ is important!
v is verbose mode – leave it on until it’s working, a is archive = copy all the file info.
Or you can just use the -u (update) flag to cp = only copy newer files.