How to count the number of lines in a file in Bash

Question

In the following script:

```
#bin/bash

counter=0

for file in ./*.txt
do
  line=$(wc -l $file | cut -d" " -f1);
  counter=$(($counter+$line))
done
echo "$counter"
```

What does the `cut -d" " -f1` part do?

Accepted Answer

it cuts the text at each space

Accepted Answer

it cuts the text to display only the first word of it

Answer

it deletes the first word of the text

Answer

it removes all spaces from a character string

Question from the Bash - Fundamentals test