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System Information

free

Displays information about the system's memory and swap usage.

Ubuntu CentOS Debian Arch SUSE Slackware Fedora FreeBSD NetBSD OpenBSD
Verified: 2025-09-22
Syntax
$free [OPTIONEN]
Optionen
-h Menschenlesbare Größen
-m In Megabytes
-g In Gigabytes
-s Kontinuierliche Ausgabe alle N Sekunden
-t Gesamtsumme anzeigen
Examples
$free
$free -h
$free -m
$free -g
$free -s 5
Typical use cases
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Standard usage
free --help
Note Displays RAM and swap usage. Important for performance monitoring.
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