Basic Syntax of free Command

Basic Syntax of free Command

The basic syntax of the “free” command is as follows:...

Basic Usage free Command

You can use the free command as:...

Options for free command

Option Description -b, –bytes Displays memory usage in bytes. -k, –kilo Displays memory usage in kilobytes (default). -m, –mega Displays memory usage in megabytes. -g, –giga Displays memory usage in gigabytes. –tera Displays memory usage in terabytes. -h, –human Automatically scales all output columns to the shortest three-digit unit and displays the units (B, K, M, G, T). -c, –count Displays the output ‘c’ number of times; works with the -s option. -l, –lohi Shows detailed low and high memory statistics. -o, –old Disables the display of the buffer-adjusted line. -s, –seconds Continuously displays the output after ‘s’ seconds delay. Uses the usleep system call for microsecond resolution delay times. -t, –total Adds an additional line in the output showing column totals. –help Displays a help message and exits. -V, –version Displays version information and exits....

Using free command with options

Using -b :...

Free Command in Linux – FAQs

What is the free command used for?...

Conclusion

The free command is used in Linux to check the amount of free and used memory on your system. It shows details about the RAM (physical memory) and swap space usage. The output displays different columns like total memory, used memory, free memory, and memory used for caching. You can use various options with free to change the units (bytes, kilobytes, etc.), show a continuous update of memory usage, or display totals. The free command is very useful for monitoring how much memory is available on your Linux system before running big programs or installing new applications....