convert a fully quoted csv file to tsv format

Question

I have a file like:

"a","b","c"...

And want to convert the comma to tab for the delimiter.

I tried:

sed -e 's/","/"\t"/g' < input_file > output_file

Yet, it looks the only effect is to change the comma to the literal character t:

"a"t"b"t"c"...

Anything wrong with my sed expression?

Answer 1

这是非GNU版本的sed的问题，如果可能，请使用空格作为delimier或粘贴制表符代替sed，或使用$(printf \\t)代替\\t