I am trying to write a bash script that will list and count the number of HTTP: 500 - 511 web error inside this file "ccc2022-02-19.txt"
Inside every file there are several 500 errors ranging from HTTP 500, 501, 502, 503 up to 511.

Within the directory where this files are , there are 4 different type of files listed there daily but I am only interested on the files that starts with "ccc" because they are listed daily for example "ccc2022-02-19.txt", "ccc2022-02-20.txt" etc

Below is an example of the file content "ccc2022-02-19.txt"

```
10.32.10.181    ignore  19 Feb 2022 00:26:04 GMT        10.32.10.44     GET / HTTP/1.1  500     73      N       0       h
10.32.26.124    ignore  19 Feb 2022 00:26:06 GMT        10.32.10.44     GET / HTTP/1.1  501     73      N       0       h
10.32.42.249    ignore  19 Feb 2022 00:26:27 GMT        10.32.10.44     GET / HTTP/1.1  500     73      N       1       h
10.32.10.181    ignore  19 Feb 2022 00:26:34 GMT        10.32.10.44     GET / HTTP/1.1  302     73      N       0       h
10.32.26.124    ignore  19 Feb 2022 00:26:36 GMT        10.32.10.44     GET / HTTP/1.1  503     73      N       1       h
10.32.26.124    ignore  19 Feb 2022 00:26:36 GMT        10.32.10.44     GET / HTTP/1.1  502     73      N       1       h
10.32.26.124    ignore  19 Feb 2022 00:26:36 GMT        10.32.10.44     GET / HTTP/1.1  502     73      N       1       h
10.32.26.124    ignore  19 Feb 2022 00:26:36 GMT        10.32.10.44     GET / HTTP/1.1  504     73      N       1       h
10.32.26.124    ignore  19 Feb 2022 00:26:36 GMT        10.32.10.44     GET / HTTP/1.1  511     73      N       1       h
10.32.26.124    ignore  19 Feb 2022 00:26:36 GMT        10.32.10.44     GET / HTTP/1.1  508     73  

```

I have tried using this command

```
awk '{for(i=1;i<=NF;i++){if($i>=500 && $i<=511){print $i}}}' ccc2022-02-19.txt

```

which listed the numbers 500 -511 but I'm afraid that it is not giving only the HTTP response but grepped other number too like **500**23, **503**893 found inside the file.

To be specific, I just want to see only the HTTP errors. Please note that the file content above is just an example......