Linux Commands Reference - Complete Linux Command Guide
Comprehensive Linux command reference with 150+ commands. Search, filter by category, and view detailed usage examples.
free
Display memory usage
Syntax
free [OPTION]...Common Options
-hHuman-readable format-bShow in bytes-kShow in kilobytes-mShow in megabytes-gShow in gigabytes-tShow total line-sContinuous refresh (seconds)-cNumber of refreshesCommon Examples
free -hShow memory in human-readable
free -mShow memory in MB
free -h -s 2Refresh every 2 seconds
free -tShow total line
free -gShow in GB
free -h -c 5Refresh 5 times then exit
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