1. cat datebook.txt | grep "\<San\>"
2. cat datebook.txt | grep "^[J]"
3. cat datebook.txt | grep "700$"
4. cat datebook.txt | grep -v "834"
5. cat datebook.txt | grep ":1[2]\/"
6. cat datebook.txt | grep ":408"
7. cat datebook.txt | grep "[A-Z][a-z]\{4\}\,\ [A-Z]"
8. cat datebook.txt | grep "^[A-Z][a-z]*\ [Kk]"
9. cat datebook.txt | grep "[0-9]\{6\}$"
10. cat datebook.txt | grep "[Ll]incoln"