Useful commands
Network speed quality
Since macOS Monterey is there a command to test your network quality:
networkQuality -v
Output will looks like follow:
==== SUMMARY ====
Upload capacity: 16.239 Mbps
Download capacity: 475.129 Mbps
Upload flows: 20
Download flows: 12
Responsiveness: Low (154 RPM)
Base RTT: 26
Start: 19.04.2022 13:56:47
End: 19.04.2022 13:57:04
OS Version: Version 12.3.1 (Build 21E258)
If you’re curious, networkQuality uses Apple’s CDN at https://mensura.cdn-apple.com/api/v1/gm/config as the target for its testing.
List all mounted drives on Mac
df -h
Open any source
open # [url|filename|directory...]
Prevent the system from sleeping
The caffeinate
command is used to prevent a Mac from going to sleep.
-d
- Prevent the display from sleeping.-i
- Prevent the system from idle sleeping.-m
- Prevent the disk from idle sleeping.-s
- Prevent the system from sleeping. This assertion is valid only when system is running on AC power.-u
- Declare that a user is active. If the display is off, this option turns the display on and prevents the display from going into idle sleep.-t
- Specifies the timeout value in seconds for which the command is valid.-w
- Waits for the process with the specified pid to exit.
caffeinate -i make
# caffeinate forks a process, execs "make" in it
# and prevents idle sleep as long as that
# process is running
caffeinate -t 18000 # 18000 seconds
Or you can just use free app KeepingYouAwake