Operating System Shell Commands

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.