Remaining Battery Percentage

pmset -g batt | egrep "([0-9]+\%).*" -o --colour=auto | cut -f1 -d';'
Remaining Battery Time

pmset -g batt | egrep "([0-9]+\%).*" -o --colour=auto | cut -f3 -d';'

Prevent sleep for 1 hour:

caffeinate -u -t 3600

Show All Power Management Settings

sudo pmset -g

Put Display to Sleep after 15 Minutes of Inactivity

sudo pmset displaysleep 15
Put Computer to Sleep after 30 Minutes of Inactivity

sudo pmset sleep 30
Check System Sleep Idle Time

sudo systemsetup -getcomputersleep
Set System Sleep Idle Time to 60 Minutes

sudo systemsetup -setcomputersleep 60
Turn Off System Sleep Completelyhh

sudo systemsetup -setcomputersleep Never

sudo scutil --set ComputerName "newhostname" && \
sudo scutil --set HostName "newhostname" && \
sudo scutil --set LocalHostName "newhostname" && \
sudo defaults write /Library/Preferences/SystemConfiguration/com.apple.smb.server NetBIOSName -string "newhostname"

SSH

Remote Login

# Enable remote login
sudo launchctl load -w /System/Library/LaunchDaemons/ssh.plist

# Disable remote login
sudo launchctl unload -w /System/Library/LaunchDaemons/ssh.plist