统计rpm安装包---egrep和sed,rev
ls|egrep -o "[^.]+.rpm$" |sort |uniq -c
ls |sed -rn "s/(.)(.rpm$)/\1/p"|sed -r "s/..<([^.].+)$/\1/"|sort|uniq -c
ls |sed -rn "s/(.)(.rpm$)/\1/p"|sed -rn "s/..<([^.].+)$/\1/p"|sort|uniq -c
ls |sed -r "s/(.)(.rpm$)/\1/"|sed -r "s/..<([^.].+)$/\1/"|sort|uniq -c
会出现---TBL(因为没有加n选项)