Jerzy's Notes

@jerzys_notes@robot.villas

Jerzy Gangi's archived notes on Linux, programming, startups, business, and life. Latest feed post: May 2016.

Source: https://notes.jerzygangi.com/index.xml

Homepage: https://notes.jerzygangi.com

Posts

91

Posts

echo on Linux does not need quotes #Linux #Programming #Tech
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442725
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442725
Don't have an account? Find a server at joinmastodon.org
May 29, 2016
How to rename a hash key in Ruby #Ruby #Programming #Developer
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442745
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442745
Don't have an account? Find a server at joinmastodon.org
May 28, 2016
How I use ls on Linux #Linux #Commandline #Tech
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442734
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442734
Don't have an account? Find a server at joinmastodon.org
May 28, 2016
How to change the root password on MySQL #MySQL #Database #Security
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442752
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442752
Don't have an account? Find a server at joinmastodon.org
Feb 1, 2016
Location of the systemwide crontab on CentOS #Linux #SysAdmin #CentOS
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442761
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442761
Don't have an account? Find a server at joinmastodon.org
Jan 31, 2016
"No distributions at all found for..." & "Could not find any downloads that satisfy the requirement..." errors in Pip and PyPI #Python #Programming #DevOps
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442771
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442771
Don't have an account? Find a server at joinmastodon.org
Jan 28, 2016
The Case for ToolsOps #Tech #DevOps #Business
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442781
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442781
Don't have an account? Find a server at joinmastodon.org
Dec 5, 2015
Location of Wordpress' php.ini file in Ubuntu #Linux #WebDev #PHP
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442790
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442790
Don't have an account? Find a server at joinmastodon.org
Jan 9, 2015
How to use mdfind to search for every file on OS X #macOS #CLI #Search
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442797
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442797
Don't have an account? Find a server at joinmastodon.org
Jan 6, 2015
Solution to the "Coin Maker" computer science interview question, using Ruby #Programming #Ruby #Algorithms
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442824
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442824
Don't have an account? Find a server at joinmastodon.org
Jan 5, 2015
How to list all MySQL databases on a server #MySQL #Database #Linux
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442815
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442815
Don't have an account? Find a server at joinmastodon.org
Jan 5, 2015
How to get and set model data from inside a Rails model #RubyOnRails #Programming #WebDevelopment
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442809
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442809
Don't have an account? Find a server at joinmastodon.org
Jan 5, 2015
It's okay to make non-RESTful controllers & routes in Rails #RubyOnRails #Programming #WebDevelopment
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442834
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442834
Don't have an account? Find a server at joinmastodon.org
Dec 30, 2014
Vagrant cheat sheet #Linux #DevOps #Cheatsheet
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442840
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442840
Don't have an account? Find a server at joinmastodon.org
Dec 21, 2014
What is the ./bin directory in a Ruby on Rails project? #RubyOnRails #Programming #WebDevelopment
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442921
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442921
Don't have an account? Find a server at joinmastodon.org
Dec 20, 2014
View all valid URL routes in a Rails app #RubyOnRails #WebDevelopment #Programming
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442913
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442913
Don't have an account? Find a server at joinmastodon.org
Dec 20, 2014
Rails' link_to always gives me a headache #RubyOnRails #WebDevelopment #Programming
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442904
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442904
Don't have an account? Find a server at joinmastodon.org
Dec 20, 2014
How to start and stop Apache in OS X #Linux #Tech #DevOps
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442897
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442897
Don't have an account? Find a server at joinmastodon.org
Dec 20, 2014
How to figure out which processes is listening on a port on OS X #Linux #Tech #Programming
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442890
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442890
Don't have an account? Find a server at joinmastodon.org
Dec 20, 2014
How to bind Vagrant to port 80 on OS X #DevOps #macOS #Networking
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442880
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442880
Don't have an account? Find a server at joinmastodon.org
Dec 20, 2014
Get a list of every Vagrant VM running on your computer #Linux #DevOps #Virtualization
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442871
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442871
Don't have an account? Find a server at joinmastodon.org
Dec 20, 2014
Don't use t.integer for referencing related tables in Rails migrations #RubyOnRails #Programming #Databases
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442861
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442861
Don't have an account? Find a server at joinmastodon.org
Dec 20, 2014
:dependent => :destroy vs. :dependent => :delete_all in Rails models #RubyOnRails #Programming #Databases
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442850
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442850
Don't have an account? Find a server at joinmastodon.org
Dec 20, 2014
The Ruby on Rails folder structure #Ruby #Rails #Programming
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442928
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442928
Don't have an account? Find a server at joinmastodon.org
Dec 19, 2014
Should I use MySQL or PostgreSQL with Ruby on Rails? #RubyOnRails #PostgreSQL #MySQL
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442968
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442968
Don't have an account? Find a server at joinmastodon.org
Dec 18, 2014
How to open the database's CLI in Ruby on Rails #RubyOnRails #Programming #Databases
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442962
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442962
Don't have an account? Find a server at joinmastodon.org
Dec 18, 2014
How to list all rake tasks #Programming #Ruby #DevTools
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442953
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442953
Don't have an account? Find a server at joinmastodon.org
Dec 18, 2014
How to delete all rows in a MySQL or Oracle table #Database #SQL #Programming
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442944
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442944
Don't have an account? Find a server at joinmastodon.org
Dec 18, 2014
How to assign a variable based on a condition in Ruby #Ruby #Programming #Coding
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442935
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442935
Don't have an account? Find a server at joinmastodon.org
Dec 18, 2014
Bash cheat sheet #Bash #Linux #Programming
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442976
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442976
Don't have an account? Find a server at joinmastodon.org
Dec 17, 2014
Using attr_accessor in Rails model classes #Ruby #Rails #Programming
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442992
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442992
Don't have an account? Find a server at joinmastodon.org
Dec 16, 2014
The only way that actually works to clear the screen in tmux #Tmux #Terminal #DevTools
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442984
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442984
Don't have an account? Find a server at joinmastodon.org
Dec 16, 2014
Where is Finder.app located on OS X? #MacOS #Tech #Programming
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22443034
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22443034
Don't have an account? Find a server at joinmastodon.org
Dec 15, 2014
tmux cheat sheet #Linux #DevTools #Terminal
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22443022
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22443022
Don't have an account? Find a server at joinmastodon.org
Dec 15, 2014
How to run Javascript code on Mac OS X #Programming #MacOS #JavaScript
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22443015
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22443015
Don't have an account? Find a server at joinmastodon.org
Dec 15, 2014
How to ensure multiple ActiveRecord calls happen sequentially #Ruby #Programming #Database
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22443006
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22443006
Don't have an account? Find a server at joinmastodon.org
Dec 15, 2014
How to create a database in MySQL #Database #MySQL #Programming
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442999
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22442999
Don't have an account? Find a server at joinmastodon.org
Dec 15, 2014
How to use sshkit in vanilla Ruby (without Rails) #Ruby #Programming #DevOps
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22443044
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22443044
Don't have an account? Find a server at joinmastodon.org
Dec 8, 2014
How to sum in Excel when you have non-numeric fields #Excel #Spreadsheets #DataAnalysis
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22443063
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22443063
Don't have an account? Find a server at joinmastodon.org
Dec 6, 2014
How to start and stop MySQL on OS X #MySQL #Database #DevOps
Boost from your server
Enter the server your account is on. The post opens there so you can boost it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22443054
Don't have an account? Find a server at joinmastodon.org
Favorite from your server
Enter the server your account is on. The post opens there so you can favorite it.
Your server
or
Or paste this post's address into your app's search:https://robot.villas/users/jerzys_notes/posts/22443054
Don't have an account? Find a server at joinmastodon.org
Dec 6, 2014