t-o-d

Posted on Oct 31, 2020

Mac hardware and system information retrieval one-liner

#shell #mac #bash #webdev

When I use Mac, there are times when I want to get system information and so on by command.
Also, you may want to use that information in shellscript.
In this article, we will write commands to obtain hardware and system information from your Mac.

Result

# model name
# output : MacBook Pro**

info=$(system_profiler SPHardwareDataType | grep 'Model Identifier'); echo "${info#*: }"

# processor
# output : Dual-Core Intel **
info=$(system_profiler SPHardwareDataType | grep 'Processor Name'); echo "${info#*: }"

# core
# output : 2
info=$(system_profiler SPHardwareDataType | grep 'Cores'); echo "${info#*: }"

# serial number
# output : *****
info=$(system_profiler SPHardwareDataType | grep 'Serial Number'); echo "${info#*: }"

# UUID
# output : *****-*****-****
info=$(system_profiler SPHardwareDataType | grep 'UUID'); echo "${info#*: }"

# memory information
# output : ** GB
info=$(system_profiler SPHardwareDataType | grep 'Memory'); echo "${info#*: }"

# user information
# output : **** *** (*******)
info=$(system_profiler SPSoftwareDataType | grep 'User Name'); echo "${info#*: }"

For ease of use, the fetched content only outputs the results.
Use shall be in the following format.
- info=$(system_profiler data-type-name | grep 'field-name'); echo "${info#*: }"
The above data-type-name and field-names are confirmed by the following command.
- data-type-name : system_profiler -listDataTypes
- field-name : system_profiler data-type-name
Other information that can be obtained with system_profiler can be found here.