HCS Blog

When you connect a power source to an iPhone, iPad or iPod touch a familiar charging chime sound will trigger from the device, indicating that a cable is attached and the device is getting power. If you like hearing that auditory confirmation that a device is getting power, you can add the exact same audio playback feature to any MacBook Pro or MacBook Air. This requires OS X Yosemite (10.10.3 or better).

1. Disconnect the Mac from the MagSafe power source
2. Open the Terminal app, found in /Applications/Utilities
3. Enter the following command: 

defaults write com.apple.PowerChime ChimeOnAllHardware -bool true; open /System/Library/CoreServices/PowerChime.app &

4. Hit Return
5. Re-connect the MacBook power supply to hear the chime

The command below will ping the ip address three times and for each response, your default OS X alert sound will play.  The -a flag in the command below means Audible.  And if not obvious, the -c means ping count.

ping -c3 -a 192.168.1.100

Enter the following command in Terminal:

sudo launchctl config user umask 000


Get info on other versions of OS X here:  https://support.apple.com/en-us/HT201684

Open Terminal and type:

nano .bash_profile

At the bottom of your .bash_profile, add these lines and save the file.

NOTE:  If you use a Dark terminal theme, use this:

export CLICOLOR=1
export LSCOLORS=GxFxCxDxBxegedabagaced


NOTE:  If you use a Light terminal theme, use this:

export CLICOLOR=1
export LSCOLORS=ExFxBxDxCxegedabagacad


Once your .bash_profile is saved, enter the command below:


ls -alh

The output should now be in different colors.

In this example, the file named “file1.txt” with be copied to a file named “file1.txt.bak” without having to type in the second file name.  This is done using brace expansion.

 In Terminal, enter the command below: