# change mirror to ubuntu.osuosl.org first
sudo apt-get update
Arman Mirkazemi armanm
armanm
/ gist:4736034
Created
February 8, 2013 02:02
To parse YAML with Ruby, do not use the YAML module, use Psych (which ships with Ruby 1.9.2, though there is also a gem). The reason is that YAML uses the unmaintained Syck library, whereas Psych uses the modern LibYAML:
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| >> require 'yaml' | |
| >> YAML.load("%YAML 1.1\n---\n'test'") # %YAML directive not supported | |
| => "%YAML 1.1 --- 'test'" | |
| >> require 'psych' | |
| >> Psych.load("%YAML 1.1\n---\n'test'") # all good | |
| => "test" |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| server { | |
| sendfile off; | |
| listen 80 default; | |
| server_name localhost; | |
| client_max_body_size 10m; | |
| access_log /var/log/nginx/localhost.access.log; | |
| location / { | |
| root /vagrant; |
armanm
/ migration.rb
Created
March 22, 2013 10:51
Paperclip doesn't give you image dimensions. I saw a bunch of different implementations and didn't like em. So I rolled my own. This implementation will save the `width` and `height` of images to the model in which you define your `has_attachmented_file` field.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| # this migration allows to have polymorphic models | |
| class CreateAssets < ActiveRecord::Migration | |
| def self.up | |
| create_table :assets, :force => true do |t| | |
| t.string :type | |
| t.integer :assetable_id | |
| t.string :assetable_type | |
| t.string :attachment_file_name | |
| t.string :attachment_content_type |
armanm
/ gist:5233820
Created
March 24, 2013 22:20
View members of a group on Ubuntu machines using command line:
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| sudo apt-get install members | |
| members some_group_name |
armanm
/ gist:5235071
Last active
December 15, 2015 08:59
This is how to run a one off but long running rake task in the background. The ampersand in the end allows to run commands in background mode, but the `nohup` part in the beginning stops the app from receiving termination signal when the SSH session is closed. This allows for the app to run continuously in the background.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| nohup rake RAILS_ENV=production rake some_task & |
armanm
/ setup.md
Last active
December 15, 2015 14:39
— forked from leesmith/setup.md
armanm
/ gist:5393730
Created
April 16, 2013 06:08
This shell script lets you check who can login to your server using SSH keys
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #!/bin/sh | |
| # | |
| # check who can login to a user's account | |
| # | |
| check_user() | |
| { | |
| local IFS=: | |
| while read user home; do | |
| test -e $home/.ssh/authorized_keys || continue | |
| cut -d' ' -f3 $home/.ssh/authorized_keys | sed -e "s/^/user $user: /" |
armanm
/ gist:5417740
Created
April 19, 2013 02:42
Shell script for sending files from command line to trash on OSX
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #!/bin/bash | |
| # | |
| # trash - Move files to the appropriate .Trash file on Mac OS X. (Intended | |
| # as an alternative to 'rm' which immediately deletes the file.) | |
| # | |
| # v0.1 2007-05-21 - Morgan Aldridge <morgant@makkintosshu.com> | |
| # Initial version. | |
| # v0.2 2010-10-26 - Morgan Aldridge | |
| # Use appropriate .Trashes folder when trashing files |
armanm
/ gist:5432917
Created
April 22, 2013 06:56
OlderNewer