🖥️ioreg

➡️This is a command-line reference manual for commands and command combinations that you don’t use often enough to remember it. This cheatsheet explains the ioreg command with important options and switches using examples.

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▁ ▂ ▃ ▄ ꧁ 🔴☠ COMMANDLINE-KUNGFU WITH CHEATSHEETS ☠🔴꧂▅ ▃ ▂ ▁

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# show I/O Kit registry (Mac OS X)

# find out the arch of the efi firmware in a Mac
ioreg -l -p IODeviceTree | grep firmware-abi

# Get Hardware UUID in Mac OS X
ioreg -d2 -c IOPlatformExpertDevice | awk -F\" '/IOPlatformUUID/{print $(NF-1)}'

# Get Hardware UUID in Mac OS X - Formats the output from `ioreg` into XML, then parses the XML with `xmllint`'s xpath feature. Show Sample Output
ioreg -ad2 -c IOPlatformExpertDevice | xmllint --xpath '//key[.="IOPlatformUUID"]/following-sibling::*[1]/text()' -

#==============================##==============================#
# CMD IOREG 						       #
#==============================##==============================#

Cheatsheets are an excellent complement to other information sources like Linux man-pages, Linux help, or How-To’s and tutorials, as they provide compact and easily accessible information. While man-pages and detailed tutorials often contain comprehensive explanations and extensive guides, cheatsheets summarize the most important options forthe command ioreg in a clear format. This allows users to quickly access the needed information for ioreg without having to sift through lengthy texts. Especially in stressful situations or for recurring tasks, cheatsheets for ioreg are a valuable resource to work efficiently and purposefully.

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