January 16, 2013, 2:53 PM — Here's how you can check your current memory usage in Ubuntu or Linux Mint.
1. Open a terminal window.
2. Type in the following command, then hit Enter:
watch -n 1 free -m
3. You can also use this command to see real-time usage:
watch -n 1 cat /proc/meminfo
For more, see the original article at the link below.