MySQL 5.7 set datetime column to NULL from 0000-00-00 00:00:00
How to change a datetime or date column in MySQL to default NULL.
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Continuous download of remote files with «rsync» from the macOS Terminal
A better alternative to «scp» when transferring multiple large files – which continues where it stopped in case of interrupted connectivity.
Download macOS & OS X installers from Mac App Store or softwareupdate
Because I had a hard time finding them: official Apple links to download OS X
Leopard → macOS Tahoe