Write a Bash script that counts the number of lines in all text files in the current directory.

Question

What does the following script do?

```
#bin/bash

counter=0

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

Accepted Answer

it counts the number of lines in all text files in the current directory

Answer

it counts the number of lines of each text file in the current directory

Answer

it systematically returns 0

Answer

returns an error

Question from the Bash - Fundamentals test