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## skip_secrets
### Instructions
You need to write a script, `skip_secrets.py`, that will be able to decrypt the text coming form a specific file.
The script will receive a file name as the first argument, check if the file is readable, filter the content by skipping all the lines containing `pineapple` and save the result in a file `out.txt`
If the file passed as argument is not readable or the number of arguments is not the one expected, the script should exit with a status code `1`.
### Usage
Below an example of how the script is supposed to work:
```console
$ cat -e file.txt
A normal pizza $
Another normal pizza$
A pizza with pineapple$
Yet another very normal and delicious pizza$
$ python3 skip_secrets.py
$ echo $?
1
$ python3 skip_secrets.py file.txt
$ cat out.txt
A normal pizza $
Another normal pizza$
A pizza with pineapple$
Yet another very normal and delicious pizza$
$
```
### Hints
- It is possible to read arguments passed to a python script using the `sys` module. Here is an example of script (`argv.py`):
```python
import sys
for argv in sys.argv:
print(argv)
```
And its output:
```console
$ python3 argv.py 1 2 3 something else
argv.py
1
2
3
something
else
$
```
- It is possible to interrupt the execution of a script and returning a status code different from `0` with the function `exit()`. For example, consider the following `example.py`:
```python
exit(1)
```
This would be the result:
```console
$ python3 example.py
$ echo $? # check the status code
1
```
### Reference
[Python sys.argv](https://docs.python.org/3/library/sys.html#sys.argv)