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Terminal_Commands.md

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Terminal Commands

macOS related

  • List of defaults commands for modifying macOS default settings/behavior.
  • List of PMSET Commands for modifying power management paramters.
    • Example: sudo pmset proximitywake 0 → Disables wake based on proximity of other devices using the same iCloud ID (iWatch or similar).

Show macOS Version and Build Number:

sw_vers

Show macOS Kernel Version:

uname -r

Disable Gatekeeper:

sudo spctl --master-disable

Show the User Library in Big Sur+:

setfile -a v ~/Library
chflags nohidden ~/Library

Disable/enable DMG Verification:

defaults write com.apple.frameworks.diskimages skip-verify TRUE 
defaults write com.apple.frameworks.diskimages skip-verify FALSE

Disable/enable Notification Center:

launchctl unload -w /System/Library/LaunchAgents/com.apple.notificationcenterui.plist
launchctl load -w /System/Library/LaunchAgents/com.apple.notificationcenterui.plist

Add "Quit" option to Finder:

defaults write com.apple.finder "QuitMenuItem" -bool "true" && killall Finder

Add "GPU" Tab to Activity Monitor:

defaults write com.apple.ActivityMonitor ShowGPUTab -bool true

Disable Library Validation:

sudo defaults write /Library/Preferences/com.apple.security.libraryvalidation.plist DisableLibraryValidation -bool true

List MAC Addresses:

networksetup -listallhardwareports

Show all Files in Finder:

defaults write com.apple.finder AppleShowAllFiles TRUE && killall Finder
defaults write com.apple.finder AppleShowAllFiles FALSE && killall Finder

Alternatively, use a Key Command: ⌘⇧. (Command-Shift-Dot)

Rebuild Launch Services:

/System/Library/Frameworks/CoreServices.framework/Frameworks/LaunchServices.framework/Support/lsregister -kill -r -domain local -domain system -domain user

Rebuild DYLD and XPC caches (≤ macOS 10.15):

sudo update_dyld_shared_cache -force
sudo /usr/libexec/xpchelper --rebuild-cache

Enable Sidecar:

defaults write com.apple.sidecar.display AllowAllDevices -bool true
defaults write com.apple.sidecar.display hasShownPref -bool true

Disable Logging:

sudo rm /System/Library/LaunchDaemons/com.apple.syslogd.plist

Enable Key Repeating

defaults write -g ApplePressAndHoldEnabled -bool false

Disabling macOS from mastering iDevices:

defaults write com.apple.iTunesHelper ignore-devices -bool YES
defaults write com.apple.AMPDeviceDiscoveryAgent ignore-devices 1
defaults write com.apple.AMPDeviceDiscoveryAgent reveal-devices 0
defaults write -g ignore-devices -bool true

Source: Apple-Knowledge

CPU related

Show CPU Vendor:

sysctl -a | grep machdep.cpu.vendor

Show CPU Model (doesn't really tell you much):

sysctl -a | grep machdep.cpu.model

Show CPU Brand String:

sysctl machdep.cpu.brand_string

List CPU features:

sysctl -a | grep machdep.cpu.features

Display Bus and CPU Frequency:

sysctl -a | grep freq

List supported instruction sets (AVX2 and others):

sysctl -a | grep machdep.cpu.leaf7_features

Get CPU details from IO Registry:

ioreg -rxn "CPU0@0"

NOTE: Text in quotation marks = CPU name as defined in ACPI. On Intel CPUs it can also be "PR00@0", "P000@0" or "C000@0". Check SSDT-PLUG/SSDT-PM to find the correct name.

Hackintosh specific

Checking Reasons for Wake:

pmset -g log | grep -e "Sleep.*due to" -e "Wake.*due to"

Currently used SMBIOS:

system_profiler SPHardwareDataType | grep 'Model Identifier'

Check OpenCore version set in NVRAM:

nvram 4D1FDA02-38C7-4A6A-9CC6-4BCCA8B30102:opencore-version

Check currently active csr-active-config set in NVRAM:

nvram 7C436110-AB2A-4BBB-A880-FE41995C9F82:csr-active-config

Find loaded Kexts (excluding those from Apple):

kextstat | grep -v com.apple

Rebuild Kext Cache (Deprecated in macOS 13):

sudo kextcache -i /

Update PreBoot Volume:

sudo diskutil apfs updatePreboot /

Check the status of System Integrity Protection:

csrutil status

Show last boot log:

log show --last boot

Search for terms in last boot log:

log show --last boot | grep "your search term"

Example: log show --last boot | grep "ACPI"

Create new shapshot (macOS 11+ only) In Recovery, enter:

csrutil authenticated-root disable
bless --folder /Volumes/x/System/Library/CoreServices --bootefi --create-snapshot

x = name of your macOS Big Sur/Monterey Volume

Check if used Hardware supports Apple Secure Boot:

  1. In Terminal, enter:
    nvram 94b73556-2197-4702-82a8-3e1337dafbfb:AppleSecureBootPolicy
  2. Check the Results:
    • if %00 = No Security
    • if %01 = Medium Security
    • if %02 = Full Security

Show currently used Board-ID:
ioreg -l | grep -i board-id

Check Hibernation Settings:
pmset -g

Make .command files executable:
chmod +x (drag file in terminal, hit enter)

Find USB Controller Renames:

ioreg -l -p IOService -w0 | grep -i EHC1
ioreg -l -p IOService -w0 | grep -i EHC2
ioreg -l -p IOService -w0 | grep -i XHC1
ioreg -l -p IOService -w0 | grep -i XHCI

Verifying if SMBus is working:

kextstat | grep -E "AppleSMBusController|AppleSMBusPCI"

Debug ACPI Hotpatches:

log show --predicate "processID == 0" --start $(date "+%Y-%m-%d") --debug | grep "ACPI"

Display CPU Features:

sysctl -a | grep machdep.cpu.features
sysctl -a | grep machdep.cpu.leaf7_features
sysctl machdep.cpu | grep AVX

Disable/Delete Metal Support:

sudo defaults write /Library/Preferences/com.apple.CoreDisplay useMetal -boolean no
sudo defaults write /Library/Preferences/com.apple.CoreDisplay useIOP -boolean no

or:

sudo defaults delete /Library/Preferences/com.apple.CoreDisplay useMetal
sudo defaults delete /Library/Preferences/com.apple.CoreDisplay useIOP

Source

Change Update Seed to Developer:

sudo /System/Library/PrivateFrameworks/Seeding.framework/Resources/seedutil unenroll
sudo /System/Library/PrivateFrameworks/Seeding.framework/Resources/seedutil enroll DeveloperSeed

Removing Network .plists (for troubleshooting):

sudo rm /Library/Preferences/SystemConfiguration/NetworkInterfaces.plist
sudo rm /Library/Preferences/SystemConfiguration/preferences.plist

List ACPI Errors:

log show --last boot | grep AppleACPIPlatform
log show --last boot | grep AppleACPIPlatform > ~/Desktop/Log_"$(date '+%Y-%m-%d_%H-%M-%S')".log

The 2nd Command saves a log on the desktop.

Dump Audio Codec (in Linux):

cd ~/Desktop && mkdir CodecDump && for c in /proc/asound/card*/codec#*; do f="${c/\/*card/card}"; cat "$c" > CodecDump/${f//\//-}.txt; done && zip -r CodecDump.zip CodecDump

Disable Power Management Scheduler (fixes high CPU usage for Powerd service in macOS Ventura beta 4):

sudo pmset schedule cancelall

Keyboard Shorcuts

Show hidden Files and Folders in Finder: ⌘⇧. (Command-Shift-Dot)