A collection of handy Bash One-Liners
Link: A collection of handy Bash One-Liners: "A collection of handy Bash One-Liners and terminal tricks for data processing and Linux system maintenance. - onceupon/Bash-Oneliner: A collection of handy Bash One-Liners and terminal tricks for d..."
There are just so many that I can always use a refresher! Linked is a nice long list of bash one liners, tips and tricks. For example, I am always unsure of sed and bash conditionals. So this linked article is helpful!