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
