Linux command
free 命令
文本
复制后可按需替换文件名、目录或参数。
常用示例
Example
free
Example
free -h
Example
free -m
Example
free -g
Refresh
free -s 2
Example
free -t
Example
free -hw
Example
free -s 2 -c 5
说明
free displays the total amount of free and used physical and swap memory in the system, as well as the buffers and caches used by the kernel. The information is gathered from /proc/meminfo.
参数
- -b
- Display in bytes
- -k
- Display in kilobytes (default)
- -m
- Display in megabytes
- -g
- Display in gigabytes
- -h, --human
- Display in human-readable format with units
- -s, --seconds delay
- Continuously display output every delay seconds
- -c, --count count
- Display output count times (use with -s)
- -t, --total
- Display a line showing totals
- -w, --wide
- Wide output (separate buffers and cache)
- -l, --lohi
- Show detailed low and high memory statistics
FAQ
What is the free command used for?
free displays the total amount of free and used physical and swap memory in the system, as well as the buffers and caches used by the kernel. The information is gathered from /proc/meminfo.
How do I run a basic free example?
Run `free` in a terminal, then adjust file names, paths, flags, or remote targets for your system.
What does -b do in free?
Display in bytes