无法从Bash中的txt文件中删除单引号或双引号

Question

I'm trying to remove all punctuation from a text file, and decided to try to use this code:

$ cat file | tr -d [:punct:] 

I also attempted with some added single quotes:

$ cat file | tr -d'[:punct:]'

and double bracketed

$ cat file | tr -d[[:punct:]]

While most of the punctuation is deleted from the text, the single and double quotes remain. I tried just deleting the quotes with code like this:

$ tr -d \'\" file

but this also fails to remove the punctuation and takes out some random letters instead.
I would love to know how to resolve this error and ideally find a way to remove all the punctuation, including quotes, in one line. Thank you!

Answer 1

I suggest:

tr -d '[:punct:]' < file

Example:

echo 'Abc.!?#,"`'"'" | tr -d '[:punct:]'

Output:

Abc