mac os command line tricks

various command line tricks for macos

cpu type

sysctl -n machdep.cpu.brand_string
system_profiler | grep Processor

disk info / mount umount

diskutil list
diskutil unmount /dev/disk1s2
diskutil mount /dev/disk1s2

user control

pkill -u username
ps -u username   

Mountain Lion X system XQuartz
http://xquartz.macosforge.org/landing/

Time machine backup (use on ssh to remote

tmutil startbackup
tmutil stopbackup

shell history incantation

history | awk '{a[$2]++}END{for(i in a){print a[i] " " i}}' | sort -rn | head -15

ruby installs utilities / packages







notifier

sudo gem install terminal-notifier

use case

terminal-notifier -message "Hello, this is my message" -title "Message Title"

flags changing

chflags nohidden /path/to/hide/file.txt

download history:

sqlite3 ~/Library/Preferences/com.apple.LaunchServices.QuarantineEventsV* 'select LSQuarantineDataURLString from LSQuarantineEvent'

sqlite3 ~/Library/Preferences/com.apple.LaunchServices.QuarantineEventsV* 'select LSQuarantineDataURLString from LSQuarantineEvent' | sort

force time update

sudo ntpdate -u time.apple.com