题解 | #打印每一行出现的数字个数#
打印每一行出现的数字个数
http://www.nowcoder.com/practice/2d2a124f98054292aef71b453e705ca9
cat nowcoder.txt|awk -F "" '{for(i=1;i<=length($0);i++) \
{if($i~/[1-5]/){x[NR]+=1}} \
}END {{for(j=1;j<=NR;j++) \
{if(x[j]==""){print "line"j" number: 0"} \
else {sum+=x[j]; print "line"j" number: "x[j]}}} \
{print "sum is "sum}} '
