acodega

Get all feature options
lpoptions -p [printer] -l

Install a printer using generic driver

Install a printer
lpadmin -p "HP-576dw-3-S" -D "HP X576dw (3 South)" -E -v lpd://192.168.60.53 -P "/Library/Printers/PPDs/Contents/Resources/HP Officejet Pro X476-X576 MFP.gz" -o printer-is-shared=false

Make a printer default (use the name from -p)
lpoptions -d New_Printer_PPD

acodega

There's a way you can see what the naughty kernel_task is up to.

/Applications/Utilities/Activity Monitor.app
View -> All Processes
Select the `kernel_task` process in the list
<gear menu> Spindump

So if it says something like `45 samples (187-231)` you know that bit was short lived - but if it says `1000 samples (1-1000)` - either it was blocked during the 10 second run, or it might be a culprit chewing away at your machine

Long number of samples + high `cpu time` value for the thread = indicator it put a lot of load on your machine

acodega

#!/bin/bash
# run elevated (with sudo)

rm -f /.metadata_never_index
mdutil -i off / 
rm -rf /.Spotlight*
mdutil -i on /
mdutil -E /

exit 0

acodega

#!/bin/sh

myIP=`curl -L -s --max-time 10 http://checkip.dyndns.org | egrep -o -m 1 '([[:digit:]]{1,3}\.){3}[[:digit:]]{1,3}'`
myLocationInfo=`curl -L -s --max-time 10 http://freegeoip.net/xml/$myIP`

myCountryCode=`echo $myLocationInfo|egrep -o '<CountryCode>.*</CountryCode>'| sed -e 's/^.*<CountryCode/<CountryCode/' | cut -f2 -d'>'| cut -f1 -d'<'`
myCity=`echo $myLocationInfo|egrep -o '<City>.*</City>'| sed -e 's/^.*<City/<City/' | cut -f2 -d'>'| cut -f1 -d'<'`
myRegionName=`echo $myLocationInfo|egrep -o '<RegionName>.*</RegionName>'| sed -e 's/^.*<RegionName/<RegionName/' | cut -f2 -d'>'| cut -f1 -d'<'`

echo "<result>$myCity, $myRegionName - $myCountryCode</result>"

acodega

/usr/sbin/softwareupdate --reset-ignored
/bin/rm -rf /Library/Preferences/com.apple.SoftwareUpdate.plist
/usr/bin/killall cfprefsd

acodega

Get-MailboxFolderStatistics bryanh -FolderScope Inbox | Select-Object Name, ItemsInFolderAndSubfolders

acodega

echo "Enter new name:"
read newmacname
sudo scutil --set ComputerName "$newmacname"
sudo scutil --set HostName "$newmacname"
sudo scutil --set LocalHostName "$newmacname"

acodega

profiles -C -o stdout-xml | grep -A 1 ProfileIdentifier

acodega

1) Choose Power on to Firmware from the Virtual Machine menu
2) then Enter Setup
3) Boot from a file
4) Arrow down to Recovery HD
5) Hit enter until you can pick boot.efi
6) select boot.efi
7) hit enter

acodega

# Run in Terminal, no restart required.

sudo sysctl debug.lowpri_throttle_enabled=0

# Reverted at restart.