Linux Operating System: A Complete Linux Guide for Beginners - Memory

The video tutorial explains how to use terminal commands to check memory usage on a computer. It covers the 'free' command to display available RAM and discusses how rounding affects the displayed values. The tutorial also introduces the 'VM stat' command, which provides detailed memory statistics, including free memory, buffer, cache, and swap information. The video emphasizes understanding memory usage and interpreting the data provided by these commands.

What command can you use to check the amount of free memory in your system?

• ps

• df

• free

• top

When using the 'free' command, why might the displayed free memory in gigabytes appear less than expected?

• Due to incorrect RAM installation

• Because of a bug in the command

• Due to rounding off to the nearest whole number

• Because the system reserves some memory for future use

How can you modify the 'free' command to display memory in megabytes?

• Use 'free -g'

• Use 'free -k'

• Use 'free -m'

• Use 'free -b'

What additional information does the 'vmstat' command provide compared to 'free'?

• Disk usage

• Detailed memory statistics including buffer and cache

• Network statistics

• CPU usage

Which command would you use to view memory statistics in a tabular format?

• free

• top

• vmstat

• htop