engineering tips most people don't know

• On Windows, Shift+RightClick adds an item called "Copy as Path" into the context menu.

• On Bash, Ctr + r let you filter the command history, which is much faster than Ctr+P/N to find the right command.

• On Bash, !! represents the last command, !$ represents the last command's last argument. So sudo !! is to run the last command with sudo.

• On Linux, less +F has the similar function as tail -f

• On Linux, tail -f 1.txt 2.txt 3.txt can follow up multiple files at the same time.