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Alternative commands on FreeBSD

Some commands on FreeBDS are different from those on most Linux distribution, here are some alternative/replacement commands used on FreeBSD.

netstat

# on freebsd sockstat could check sockets state
pkg install sockstat
sockstat
sockstat -4l
sockstat -6l

free

pkg install freecolor
freecolor

apt & yum

pkg update && pkg upgrade
pkg install xxx
pkg delete yyy

check swap

pstat -s
swapinfo -h

pidstat

procstat -a

lspci

pciconf -lv
## or 
pkg install pciutils

proc

FreeBSD doesn’t mount procfs file system by default, if you need it, you can mount it yourself

mount -t procfs proc /proc

or add to it /etc/fstab

proc     /proc   procfs  rw    0 0

ldd

display the status of any files dynamically linked into the kernel

kldstat
kldstat -v

insmod & rmmod

cd /boot/kernel
kldstat
kldload zfs.ko

kldstat

kldunload zfs.ko
kldstat

Reference

https://docs.freebsd.org/en/books/handbook/