0x04. Loops, conditions and parsing Resource Loops sample Variable assignment and arithmetic Comparison operators File test operators Make your scripts portable Tasks 0. Create a SSH RSA key pair Links from screenshot Linux and Mac OS users Windows users data centers 1. For Best School loop 2. While Best School loop 3. Until Best School loop 4. If 9, say Hi! 5. 4 bad luck, 8 is your chance Links from screenshot 8 in the Chinese culture 4 in the Chinese culture 6. Superstitious numbers 7. Clock 8. For ls 9. To file, or not to file 10. FizzBuzz 11. Read and cut 12. Tell the story of passwd Links from screenshot Understanding /etc/passwd IFS (internal field separator) 13. Let's parse Apache logs Links from screenshot Apache HTTP Server HTTP status codes System: Analyzing Apache log Files 14. Dig the data