如何使用shell脚本计算每行中的选项卡数？

Question

I need to write a script to count the number of tabs in each line of a file and print the output to a text file (eg, output.txt).

How do I do this?

Answer 1

awk '{print gsub(/\t/,"")}' inputfile > output.txt

Answer 2

如果将\\t视为字段分隔符，则每行上的字段数将少于\\t ：

awk -F'\t' '{ print NF-1 }' input.txt > output.txt

Answer 3

This will give the total number of tabs in file:

od -c infile | grep -o "\t" | wc -l > output.txt

This will give you number of tabs line by line:

awk '{print gsub(/\t/,"")}' infile > output.txt

Answer 4

sed 's/[^\t]//g' input.txt | awk '{ print length }' > output.txt

基于这个答案 。