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frei (FREe Improved)

screenshot

Since almost every basic command nowadays has a fancy Rust or Go rewrite, free should not be an exception.

In case you didn't know, free shows your memory usage on Unix-based systems. frei obtains memory data from /proc/meminfo and represents it in a colored bar chart using the same color-coding for as htop.

Installation

Arch Linux

frei is available on the AUR.

Pre-compiled binaries

Binaries for i386, amd64 and arm are available on the releases page.

Compiling from source

Make sure you have Go installed.

git clone https://github.com/alexcoder04/frei.git
cd frei

go build .    # builds a binary
go install .  # builds and install a binary to your $GOPATH

Command-line options

option description
-help show list of options
-h human-readable numbers (implies -numbers)
-key display color key
-numbers print numbers in addition to the chart
-version display version and exit

Contributing

I appreciate any kind of improvement/feature ideas or bug reports. Don't hesitate to open an issue.

FAQ

What is the differerence between "free" and "available" memory?

For more detailed information, see free(1).

"Free" (MemFree in /proc/meminfo) reports just the amount of memory that is currently not in use. "Available" (MemAvailable in /proc/meminfo), on the other side, is a more sophisticated estimation of how much memory is available for starting new applications, without swapping. It takes into account the page size and how much of reclaimable memory can actually be reclaimed.