| # Install tmux 3.0 on Centos | |
| # install deps | |
| yum install gcc kernel-devel make ncurses-devel | |
| # DOWNLOAD SOURCES FOR LIBEVENT AND MAKE AND INSTALL | |
| curl -LOk https://github.com/libevent/libevent/releases/download/release-2.1.11-stable/libevent-2.1.11-stable.tar.gz | |
| tar -xf libevent-2.1.11-stable.tar.gz | |
| cd libevent-2.1.11-stable | |
| ./configure --prefix=/usr/local |
| import boto3 | |
| def role_arn_to_session(**args): | |
| """ | |
| Usage : | |
| session = role_arn_to_session( | |
| RoleArn='arn:aws:iam::012345678901:role/example-role', | |
| RoleSessionName='ExampleSessionName') | |
| client = session.client('sqs') | |
| """ |
Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...
// see: https://github.com/chadoe/docker-cleanup-volumes
$ docker volume rm $(docker volume ls -qf dangling=true)
$ docker volume ls -qf dangling=true | xargs -r docker volume rm
| What you need to do is to create a new commit with the same details as the current HEAD commit, but with the parent as the previous version of HEAD. git reset --soft will move the branch pointer so that the next commit happens on top of a different commit from where the current branch head is now. | |
| # Move the current head so that it's pointing at the old commit | |
| # Leave the index intact for redoing the commit | |
| git reset --soft HEAD@{1} | |
| # commit the current tree using the commit details of the previous | |
| # HEAD commit. (Note that HEAD@{1} is pointing somewhere different from the | |
| # previous command. It's now pointing at the erroneously amended commit.) | |
| git commit -C HEAD@{1} |
This simple line chart is constructed from a TSV file storing the closing value of AAPL stock over the last few years. The chart employs conventional margins and a number of D3 features:
| # These are my notes from the PragProg book on CoffeeScript of things that either | |
| # aren't in the main CS language reference or I didn't pick them up there. I wrote | |
| # them down before I forgot, and put it here for others but mainly as a reference for | |
| # myself. | |
| # assign arguments in constructor to properties of the same name: | |
| class Thingie | |
| constructor: (@name, @url) -> | |
| # is the same as: |
cribbed from http://pastebin.com/xgzeAmBn
Templates to remind you of the options and formatting for the different types of objects you might want to document using YARD.
| namespace :deploy do | |
| desc "Hot-reload God configuration for the Resque worker" | |
| task :reload_god_config do | |
| sudo "god stop resque" | |
| sudo "god load #{File.join(deploy_to, 'current', 'config', 'resque-' + rails_env + '.god')}" | |
| sudo "god start resque" | |
| end | |
| end | |
| # append to the bottom: |
| require 'lda-ruby' | |
| corpus = Lda::Corpus.new | |
| corpus.add_document(Lda::TextDocument.new(corpus, "a lion is a wild feline animal", [])) | |
| corpus.add_document(Lda::TextDocument.new(corpus, "a dog is a friendly animal", [])) | |
| corpus.add_document(Lda::TextDocument.new(corpus, "a cat is a feline animal", [])) | |
| lda = Lda::Lda.new(corpus) | |
| lda.verbose = false | |
| lda.num_topics = (2) | |
| lda.em('random') |
| # NOTICE: to get Nginx+Unicorn best-practices configuration see the gist https://gist.github.com/3052776 | |
| $ cd /usr/src | |
| $ wget http://nginx.org/download/nginx-1.2.1.tar.gz | |
| $ tar xzvf ./nginx-1.2.1.tar.gz && rm -f ./nginx-1.2.1.tar.gz | |
| $ wget ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-8.30.tar.gz | |
| $ tar xzvf pcre-8.30.tar.gz && rm -f ./pcre-8.30.tar.gz | |
| $ wget http://www.openssl.org/source/openssl-1.0.1c.tar.gz |