Operating System Shell Commands
Example
IT-600
Journal Entry 1
Every operating system, whether Windows, Linux, or Macintosh have command, which guide the owner operator about the system they are using, cores, memory, processor, hardware, software, etc. They system I am using is Apple Mac OS Sierra Version 10.12.1, as displayed below.
Not being familiar with OS, I had difficulty finding out where to click and run command system_profiler, so the hardware and software information can be retrieved. Finally, after good research online, it was just the matter of clicking on system icons to get information (with more than one way).
So, on Mac OS, one can either go under Application folder and click on Utilities folder and once that opens up just click on System Information. Another way of getting on this page is to click on the Apple Menu on top left corner. Just click About This Mac and then click System Report.
Once the profiler is open, one can view information on three different contents of the system, Hardware, Network, and Software. The Hardware information is copy/paste below:
Hardware Overview:
Model Name: MacBook Pro
Model Identifier: MacBookPro9,2
Processor Name: Intel Core i7
Processor Speed: 2.9 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache (per Core): 256 KB
L3 Cache: 4 MB
Memory: 8 GB
Boot ROM Version: MBP91.00D3.B0D
SMC Version (system): 2.2f41
Serial Number (system): C1MKXC86DTY4
Hardware UUID: 3571F1FE-3368-58D3-85B6-26F7DDCCB1CF
Sudden Motion Sensor:
State: Enabled
This operating system in use is MacBook Pro, which can easily identified by MacBookPro9.2. The name of the processor being used on this machine is Intel Core i7 with 2.9 GHz speed. There are two different memory slots in this system, BANK0/DIMMO and BANK 1/DIMMO both of them are 4 GB with 1600 MHz speed. There are total of 2 Cores and 256 KB of L2 Cache is being used per core. Moreover, the System Profiler expands more inside information about hard drives, Bluetooth, Camera, Diagnostics, SD Card Reader, Ethernet Cards, FireWire, PCI, Memory, Printers, Storage, USB, Serial-ATA Device, etc. Under Serial-ATA Device, one can learn more about the Intel 7 Series. It is emphasizing more towards the vendor, product, link speed, negotiated link speed, physical interconnect.
Intel 7 Series Chipset:
Vendor: Intel
Product: 7 Series Chipset
Link Speed: 6 Gigabit
Negotiated Link Speed: 3 Gigabit
Physical Interconnect: SATA
Description: AHCI Version 1.30 Supported
APPLE HDD HTS541010A9E662:
Capacity: 1 TB (1,000,204,886,016 bytes)
Model: APPLE HDD HTS541010A9E662
Revision: JA0AB5D0
Serial Number: JA8006ET05XU8Y
Native Command Queuing: Yes
Queue Depth: 32
Removable Media: No
Detachable Drive: No
BSD Name: disk0
Rotational Rate: 5400
Medium Type: Rotational
Partition Map Type: GPT (GUID Partition Table)
S.M.A.R.T. status: Verified
Volumes:
EFI:
Capacity: 209.7 MB (209,715,200 bytes)
BSD Name: disk0s1
Content: EFI
Volume UUID: 0E239BC6-F960-3107-89CF-1C97F78BB46B
disk0s2:
Capacity: 999.35 GB (999,345,127,424 bytes)
BSD Name: disk0s2
Content: Apple_CoreStorage
Recovery HD:
Capacity: 650 MB (650,002,432 bytes)
BSD Name: disk0s3
Content: Apple_Boot
Volume UUID: F49B2333-8C57-3BD0-8D62-F814B3566D79
In conclusion, knowing the information on OS one is using is important to have, especially during the troubleshooting. It also helps to know what product or processor you are using, especially for someone like me, so that when you go in market to get better product you can compare and contrast or add-on with higher updates.