uniq\\ -information on repeated lines in a file\\ -generally works better if the lines are initially sorted\\ -can count number of repeated lines\\ -can show lines that are repeated\\ more dfruit\\ apple\\ pear\\ peach\\ peach\\ apple\\ blueberry\\ blueberry\\ blueberry\\ apple\\ grape\\ blueberry\\ uniq dfruit\\ apple\\ pear\\ peach\\ apple\\ blueberry\\ apple\\ grape\\ blueberry\\ -notice that repeated lines have been collapsed into one sort dfruit |uniq\\ apple\\ blueberry\\ grape\\ peach\\ pear\\ how many copies of a line?\\ sort dfruit |uniq -c\\ 3 apple 4 blueberry 1 grape 2 peach 1 pear which lines are repeated?\\ sort dfruit |uniq -d\\ apple\\ blueberry\\ peach\\ which lines are not repeated?\\ sort dfruit |uniq -u\\ grape\\ pear\\