A quick method to remove duplicates from text files - including for example CSV files - where multiple records have been added (perhaps automatically) at different times resulting in multiple copies of the same record scattered throughout the file. Here is a simple one-liner bash command to remove duplicates using

Brace expansion is one of the most powerful bash tricks with the potential to save you considerable time. Bash brace expansion takes a list of arguments and expands them into separate arguments to the command. $ echo hello{1,2,3} hello1 hello2 hello3 🧠Braces can also be nested for more

Find the pids of all instances/processes of a given program running on your system

Interactively search through your command line history with a simple keyboard shortcut.

GNU Screen is a command-line application that allows use of multiple virtual sessions within a single real terminal or remote session. Importantly, it allows for persistent running of command-line applications independent of the shell that initiated them program, meaning active applications can persist during disconnection. 🧠This is just one of