How do I find the number of all .txt files in a directory and all sub directories using specifically the find command and the wc command?

Question

So far I have this: ``` find -name ".txt" ``` I'm not quite sure how to use wc to find out the exact number of files. When using the command above, all the .txt files show up, but I need the exact number of files with the .txt extension. Please don't suggest using other commands as I'd like to specifically use find and wc. Thanks

Accepted Answer

Try:

```
find . -name '*.txt' | wc -l
```

The `-l` option to `wc` tells it to return just the number of lines.

Improvement (requires GNU find)

The above will give the wrong number if any .txt file name contains a newline character. This will work correctly with any file names:

```
find . -iname '*.txt' -printf '1
' | wc -l
```

`-printf '1
` tells `find` to print just the line `1` for each file name found. This avoids problems with file names having difficult characters.

Example

Let's create two `.txt` files, one with a newline in its name:

```
$ touch dir1/dir2/a.txt $'dir1/dir2/b
c.txt'
```

Now, let's find the find command:

```
$ find . -name '*.txt'
./dir1/dir2/b?c.txt
./dir1/dir2/a.txt
```

To count the files:

```
$ find . -name '*.txt' | wc -l
3
```

As you can see, the answer is off by one. The improved version, however, works correctly:

```
$ find . -iname '*.txt' -printf '1
' | wc -l
2
```

How do I find the number of all .txt files in a directory and all sub directories using specifically the find command and the wc command?

Solution

Problem