Uly.me

cloud engineer

Archives for February 2019

MacOS Custom Launchpad

Are the icons too big in MacOS Launchpad? You can customize them. Here are the commands.

# change the launchpad icon size by changing the columns and rows
defaults write com.apple.dock springboard-columns -int 10
defaults write com.apple.dock springboard-rows -int 10
killall Dock
# reset the launchpd
defaults write com.apple.dock ResetLaunchPad -bool TRUE
killall Dock
# reset to defaults
defaults delete com.apple.dock springboard-columns 
defaults delete com.apple.dock springboard-rows
killall Dock

Styling The Bash Prompt

Great article how to style your Bash prompt. Make sure you are using Bash shell, because you could be using another shell. Use this to display your current shell. Just type “bash” to start using Bash shell.

echo $0
bash

I use the prompt style below. See the result underneath PS1. You may have to exit and re-enter your Terminal to see results.

PS1="\u@\h:\w: "
ulysses@localhost:/var/www:

AWS CLI EFS Describe Tags

How to display tags of EFS file system.

aws efs describe-tags --file-system-id fs-xxxxxxxx --query 'Tags[?Key==`tagname`].{Name:Key,Value:Value}'

AWS CLI EFS Describe File Systems

Show a list of EFS file systems within a region.

aws efs describe-file-systems \
--region us-east-1

Filter by Name and FileSystemId.

 aws efs describe-file-systems \
--query 'FileSystems[*].[Name,FileSystemId]'

RPM Check Packages

How to check RPM if packages are installed.

rpm -qa --last 
rpm -qa --last | more
rpm -qa --last | grep "package name"