{sidebar id=6}{sidebar id=1}
Q1)
cut -d: -f 6 passwd
cut -d: -f 7 passwd|sort|uniq|wc -l
Q2)
sort telephone.txt
Q3)
-
wc -l telephone.txt
- grep Dupond telephone.txt
- cat telephone.txt | grep -v « Dupond »
- grep Dupond telephone.txt|uniq -f 1|cut -d\; -f 3
- sort telephone.txt|grep Dupond |uniq -f 1|cut -d\; -f 3
