S3 CLI QuickStart for Mac 10.12 Sierra The Mac Tutorial Show Step-by-step How-to QuickStart with Amazon S3 Command Line Tool on Mac OS X 10.12 Sierra. This is Very Useful Command Line Tool will Enable Synchronization of Local Folders with the S3 Buckets and without a Risk of Wiping the already Existing Remote Datas. The Post Include all Commands and Links Needed to Successfully Installing s3cmd for Mac OS X. Download Latest s3cmd CLI Release: S3cmd tar.gz Archive S3cmd. Open a Terminal Shell Emulator Applications > Utilities > Terminal (Press “Enter” to Execute Commands) Installing the s3cmd CLI cd ~/Downloads …