问题
如果我有一个长文件包含许多不同长度的行，我如何计算每行长度的出现次数？
例：
file.txt
this is a sample file with several lines of varying length
运行count_line_lengths file.txt将给出：
Length Occurences 1 1 2 2 4 3 5 1 6 2 7 2
想法？
count.awk：
{
print length($0);
}
… …
$ awk -f count.awk input.txt | sort | uniq -c
1 1
2 2
3 4
1 5
2 6
2 7
