505  grep oink pig.txt
  506  grep moooooo pig.txt
  507  grep oink *.txt
  508  grep OOOOOMAMA *.txt
  509  grep -n oink pig.txt
  510  grep -n oink *.txt
  511  grep grep *.sh
  512  man grep | grep -n grep
  513  grep -c oink pig.txt
  514  grep -c oink *
  515  grep -l oink *
  516  grep1.sh
  517  # after fix grep in loop
  518  grep1.sh
  519  # after saved the fix!
  520  grep1.sh
  521  grep oink moooooo
  522  grep -s oink moooooo
  523  grep -q oink pig.txt && echo "look ma it worked"
  524  grep -q oink mooooo && echo "look ma it worked"
  525  grep -qs oink mooooo && echo "look ma it worked"
  526  grep oink grep1.sh
  527  grep -v oink grep1.sh
  528  grep -vn oink grep1.sh
  529  wc grep1.sh
  530  man wc
  531  echo OINK pig.txt
  532  echo OINK >> pig.txt
  533  grep -i oink pig.txt
  534  grep -c "CS 279" *.txt
  535  grep -c "CS 279" .*\.txt$
  536  grep -l "CS 279" *.txt
  537  grep -n "CS 279" *.txt
  538  iffy1.sh mooooo
  539  iffy1.sh pig.txt
  540  iffy1.sh mooooo
  541  iffy1.sh pig.txt
  542  if-and-re1.sh
  543  if-and-re1.sh moomoo oink argggg whazzup
  544  if-and-re1.sh moomoo oink argggg whazzup
  545  if-and-re1.sh moomoo oink argggg whazzup
  546  history > 279lect08-1-history.txt