10 Linux Shell Tricks You Don’t Already Know. Really, we swear.

Here’s a bunch of damn useful commands you haven’t heard before.
1. A Simple way to Send Output and Errors
2. Parallelize Your Loops
3. Catch Memory Leaks By Using Top via Cron
4. Standard in directly from the command line
5. Set a Random Initial Password, That Must be Changed
6. Add Your Public Key to Remote Machines the Easy Way
7. Extract an RPM without any additional software
8. See How a File Has Changed from Factory Defaults
9. Undo Your Network Screwups After You’ve Lost the Connection
10. Check a Port is Open

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