Sysadmin > FreeBSD > FreeBSDAfterboot > FreeBSDExpl
# update
# https://www.freebsd.org/doc/handbook/makeworld.html

 svn update /usr/src  1
check /usr/src/UPDATING  2
 cd /usr/src          3
 make -j4 buildworld  4
 make -j4 kernel      5
 shutdown -r now      6
 cd /usr/src          7
 make installworld    8
 mergemaster -Ui      9
 shutdown -r now      10

# ports
portsnap fetch
portsnap extract
portsnap update

# tmux
https://tmuxcheatsheet.com

# bootstrap pkgsrc
./bootstrap --pkgdbdir /opt/pkg/db/pkg --prefix /opt/pkg --sysconfdir /opt/pkg/etc --workdir=/tmp/work --varbase /var/pkg

#Temperature 
sysctl dev.cpu | grep temperature