题解 | #转置文件的内容#
打印每一行出现的数字个数
http://www.nowcoder.com/practice/2d2a124f98054292aef71b453e705ca9
awk 'BEGIN{sum=0}{
k=0;
for(i=1;i<=length($0);i++){
c=substr($0,i,1);
if(c<6 && c>0){
k++;
sum++;
}
}
print "line"NR" number:"k
}END{print "sum is " sum}' $1