After i reboot my OS X, i find that i couldn’t start the MySQL server and it throws the following error:
hatuey:5.6.19 yingkityuen$ mysql.server start
. ERROR! The server quit without updating PID file (/usr/local/var/mysql/hatuey.local.pid).
Go to the above folder and delete the mysql error log which is ended with .err. In my case, i executed the following command:
hatuey:5.6.19 yingkityuen$ rm /usr/local/var/mysql/hatuey.local.err
Where hatuey is my Mac machine name.
This should fix the problem.
Reference: Mahdi Yusuf – MySQL ‘The server quit without updating PID file’
In Linux, i always do
For Mac OS X:
sudo lsof -i -P | grep -i "listen"
Reference: List open ports on your machine (Mac OS X)
It’s not easy to view the Git log in command line but most of the time is the most straight forward way or sometimes, the only way you could view the Git commit history.
Tig is a ncurses-based interface to view your Git repository.
Installation on OS X using Homebrew:
brew install tig
Installation on Ubuntu:
apt-get install tig
Continue reading Tig – Git interface on command line
rbenv is an alternative to rvm for managing your Rubies. You can find some articles comparing the two. In general, rbenv is more lightweight without overriding the cd and gem command which rvm does and their similarities outweigh their differences. Here is a great article written by Jonathan Jackson about the two solutions.
For Mac users, you could install rbenv using Homebrew. Otherwise, you need to checkout the repository on GitHub.
Continue reading rbenv – Ruby version manager