Linux free命令用于显示内存状态。
free指令会显示内存的使用情况,包括实体内存,虚拟的交换文件内存,共享内存区段,以及系统核心使用的缓冲区等。
Usage:
free [options]
Options:
- -b, --bytes show output in bytes
- -k, --kilo show output in kilobytes
- -m, --mega show output in megabytes
- -g, --giga show output in gigabytes
- --tera show output in terabytes
- -h, --human show human-readable output
- --si use powers of 1000 not 1024
- -l, --lohi show detailed low and high memory statistics
- -t, --total show total for RAM + swap
- -s N, --seconds N repeat printing every N seconds
- -c N, --count N repeat printing N times, then exit
- -w, --wide wide output
- --help display this help and exit
- -V, --version output version information and exit