Situation: I have a script watching over NumLock status, well not really watching, but turning it On every 1 second. The script is running in the background.
Reasoning: I often accidentally turn off NumLock. And I have no indicator of NumLock status on the keyboard.
OS, DE, DM, WM,
$ lsb_release -a No LSB modules are available. Distributor ID: LinuxMint Description: Linux Mint 18 Sarah Release: 18 Codename: sarah
echo $DESKTOP_SESSION cinnamon
cat /etc/X11/default-display-manager /usr/sbin/mdm
wmctrl -m | head -n 1 Name: Mutter (Muffin)
xmodmap -pm xmodmap: up to 4 keys per modifier, (keycodes in parentheses): shift Shift_L (0x32), Shift_R (0x3e) lock Caps_Lock (0x42) control Control_L (0x25), Control_R (0x69) mod1 Alt_L (0x40), Alt_R (0x6c), Meta_L (0xcd) mod2 Num_Lock (0x4d) mod3 mod4 Super_L (0x85), Super_R (0x86), Super_L (0xce), Hyper_L (0xcf) mod5 ISO_Level3_Shift (0x5c), Mode_switch (0xcb)
My original Bash script follows:
#!/bin/bash while true do numlockx on sleep 1s done
As you can see, the script does not care about current status of NumLock. It just keeps turning it on.
Goal: I would like to make the script at least somewhat CPU efficient.
Question: What is the most CPU efficient way to ensure that NumLock is On in Linux (Mint 18)?