1 clear 2 ll 3 man grep 4 ln -s /usr/share/dict/words 5 ll 6 more words 7 wc words 8 grep 'director' words 9 grep '^director$' words 10 grep '^director' words 11 grep -c '^director' words 12 grep '^director' words | wc 13 grep '^director*' words | wc 14 grep '^[a]*' words 15 grep 'qu.*ing' words 16 grep '^qu.*ing&' words 17 grep '^qu.*ing$' words 18 grep '^qu...ing$' words 19 grep 'qu...ing' words 20 echo other the them > testfile 21 more testfile 22 grep '\' testfile 23 grep '\' words 24 grep 'the*' words 25 grep 'the' words 26 grep 'th' words 27 grep 'the\+' words 28 grep '\(the\)\+' testfile 29 grep '\(the\)*' testfile 30 echo thethe >> testfile 31 grep '\(the\)*' testfile 32 echo theeeeee >> testfile 33 grep '\(the\)*' testfile 34 grep 'the*' testfile 35 grep '^a\|A' words 36 grep '^a\|A' words | head 37 grep '^\(a\|A\)' words 38 grep '^[aA]' words 39 grep '^[abc]' words 40 grep '^[^a-gi-zA-Z]' words 41 grep '^\([A-Za-z]*\)\1$' words 42 grep '^\([A-Za-z]*\)\1\1$' words 43 grep '^\(.\)\(.\)\(.\)\3\2\1$' words 44 ll 45 more phonenums 46 wc phonenums 47 grep -c '([0-9]*' phonenums 48 history > lect6history