538  ./arguments.sh hello class i am dan
  539  pwd
  540  ../../oldTeaching/303guestLec/arguments.sh hello class i am dan
  541  ./arguments.sh hello
  542  ./example1.sh 
  543  ls
  544  ./example1.sh blah
  545  ls
  546  ls blah
  547  cat blah/notes.txt 
  548  ./example1.sh blah2
  549  cat blah2/notes.txt 
  550  ./example1.sh blah
  551  cat blah/notes.txt 
  552  echo "hello" | grep pat
  553  echo "hello" | grep ell
  554  echo "hello" | grep elo
  555  echo "hello" | egrep e(l|p)o
  556  echo "hello" | egrep 'e(l|p)o'
  557  echo "hello" | egrep 'e(l|p)(o|l)'
  558  echo "hello" | egrep 'e(l|p)(l|o)'
  559  echo "hello" | egrep 'e(l|p)l(o|q)'
  560  echo "helo" | egrep 'e(l|p)l(o|q)'
  561  echo "helo" | egrep 'e(ll|p)l(o|q)'
  562  echo "helo" | egrep 'ab*c'
  563  echo "hceloa" | egrep 'ab*c'
  564  echo "hca" | egrep 'ab*c'
  565  echo "hac" | egrep 'ab*c'
  566  echo "habbbbbbbbbc" | egrep 'ab*c'
  567  echo "habbbbbcbbbbc" | egrep 'ab*c'
  568  echo "habbbqbbcbbbbc" | egrep 'ab*c'
  569  echo "habbbabbcbbbbc" | egrep 'ab*c'
  570  echo "habbbbbbbbbc" | egrep '(ab)*c'
  571  echo "c" | egrep '(ab)*c'
  572  echo "habbbbbbbbbc" | egrep '[lpo]'
  573  echo "habbbbbbbbbc" | egrep '[lpo]*'
  574  echo "habbbbbbbbbc" | egrep 'h[lpo]*'
  575  echo "habbbbbbbbbc" | egrep 'h[a-zA-Z]'
  576  ls
  577  grep "To:" hw0
  578  grep "To:" hw0 |wc
  579  grep -c "To:" hw0"


  580  grep -c "To:" hw0
  581  grep -c "To:" hw0 | grep -v "Reply-To:"
  582  grep  "To:" hw0 | grep -v "Reply-To:"
  583  grep  "To:" hw0 | grep -c -v "Reply-To:"
  584  "my favorit word is To: how about you
"
  585  grep -c  "^To:" hw0
  586  grep -c  "^To:$" hw0
  587  grep -c  "q.*p" hw0
  588  grep  "q.*p" hw0
  589  grep ninja hw0
  590  grep pirate hw0
  591  grep -c 322 hw0
  592  grep 322 hw0
  593  grep " 322 " hw0
  594  grep " 322( \|,)" hw0
  595  grep " 322( |,)" hw0
  596  egrep " 322( |,)" hw0
  597  egrep "[^0-9]322[^0-9]" hw0
  598  egrep -c "[^0-9]322[^0-9]" hw0
  599  egrep -c "." hw0
  600  egrep -c "\." hw0
  601  egrep -c "\..*\." hw0
  602  egrep -c "\.\." hw0
  603  egrep -c "\..{5}\." hw0
  604  egrep "\..{5}\." hw0
  605  ls
  606  less words
  607  wc words
  608  grep 'tr..p' words
  609  grep '^tr..p$' words
  610  grep 'ii' words
  611  grep '[^i]ii[^i]' words
  612  echo "ii" '[^i]ii[^i]' 
  613  echo "ii" |grep '[^i]ii[^i]' 
  614  echo "ii" '([^i]ii[^i]) | (^ii[^i]) | ([^i]ii$)' 
  615  echo "ii" '([^i]ii[^i]) | grep (^ii[^i]) | ([^i]ii$)' 
  616  echo "ii" | grep (^ii[^i]) | ([^i]ii$)' 
  617  echo "ii" | grep '(^ii[^i]) | ([^i]ii$)' 
  618  echo "ii" | grep '([^i]ii[^i]) | (^ii[^i]) | ([^i]ii$) | (^ii$)' 
  619  echo "ii" | grep '([^i]ii[^i]) | (^ii[^i]) | ([^i]ii$) | (^ii$)' 
  620  echo "ii" | egrep '([^i]ii[^i]) | (^ii[^i]) | ([^i]ii$) | (^ii$)' 
  621  echo "ii" | egrep '([^i]ii[^i]) | (^ii[^i]) | ([^i]ii$) | (^ii$)' 
  622  egrep -c '.{10}' words
  623  egrep -c '.{20}' words
  624  egrep -c '.{30}' words
  625  egrep -c '.{1000}' words
  626  egrep -c '.{500}' words
  627  egrep -c '.{250}' words
  628  egrep -c '.{50}' words
  629  egrep '.{30}' words
  630  egrep -c '(aba)c\1' words
  631  egrep '(aba)c\1' words
  632  egrep '(a)c\1' words
  633  egrep '(a.*b)\1' words
  634  egrep '(a.*b)(a.*b)' words
  635  egrep '^(.*)\1$' words
  636  egrep '^(.?)(.?)(.?)(.?)(.?)\5\4\3\2\1$' words