Add help messages

[eliasericsson]

CPU

usage: cpu.py [-h] [-i INTERVAL] [--percpu]

options:
  -h, --help            show this help message and exit
  -i INTERVAL, --interval INTERVAL
                        interval in seconds
  --percpu              display per cpu usage

Memory

usage: mem.py [-h] [-t]

options:
  -h, --help   show this help message and exit
  -t, --total  display memory usage as used/total in GB

DISK

usage: disk.py [-h] [-t | -f] [-p PATH]

options:
  -h, --help            show this help message and exit
  -t, --total           display disk usage as used/total in GB
  -f, --free            display free disk in GB
  -p PATH, --path PATH  path to check disk usage

[hendrikmi]

Nice! This was missing. Thanks 🚀