What is equivalent of Linux's 'free' command on FreeBSD v8.1

• vmstat has default output which is similar in nature and takes many options that give extremely detailed information, eg vmstat -m
• swapinfo would cover the swap part
• top -d1 causes top to print one screen and exit, and the banner is very similar to free. Use top -d1 | head -n 7 to see only the banner

vmstat -s gives some more human-readable or script-parseable information, including listing the page size. Otherwise, it gives output in numbef of pages. With no options, vmstat gives a brief summary.

The vmstat command also exists on NetBSD.

Maybe freecolor command is a choice. Install it:

# cd /usr/ports/sysutils/freecolor
# make install clean

Use it:

# freecolor
Physical  : [#################################..] 94%   (1907820/2018396)
Swap      : [###################################] 100%  (1048540/1048540)
# freecolor -m -o
             total       used       free     shared    buffers     cached
Mem:          1971        107       1863          0          0          0
Swap:         1023          0       1023

Please refer FreeBSD find out RAM size Including Total Amount of Free and Used Memory Size.