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@ssstonebraker
ssstonebraker / sed cheatsheet
Created August 2, 2013 14:06 — forked from un33k/sed cheatsheet
Sed Cheatsheet
FILE SPACING:
# double space a file
sed G
# double space a file which already has blank lines in it. Output file
# should contain no more than one blank line between lines of text.
sed '/^$/d;G'
FROM ubuntu:12.04
RUN DEBIAN_FRONTEND=noninteractive apt-get install -y openjdk-6-jdk curl git-core build-essential bzr
RUN mkdir -p /tmp/downloads
# install go
RUN curl -sf -o /tmp/downloads/go1.1.1.linux-amd64.tar.gz -L https://go.googlecode.com/files/go1.1.1.linux-amd64.tar.gz
RUN mkdir -p /opt && cd /opt && tar xfz /tmp/downloads/go1.1.1.linux-amd64.tar.gz
# install jenkins
RUN curl -sf -o /opt/jenkins-1.523.war -L http://mirrors.jenkins-ci.org/war/1.523/jenkins.war
@grenade
grenade / 01-generate-ed25519-ssh-key.sh
Last active November 29, 2025 18:38
generate ed25519 ssh and gpg/pgp keys and set file permissions for ssh keys and config
#!/bin/bash
mkdir -p ~/.ssh
# generate new personal ed25519 ssh keys
ssh-keygen -o -a 100 -t ed25519 -f ~/.ssh/id_ed25519 -C "rob thijssen <[email protected]>"
ssh-keygen -o -a 100 -t ed25519 -f ~/.ssh/id_robtn -C "rob thijssen <[email protected]>"
# generate new host cert authority (host_ca) ed25519 ssh key
# used for signing host keys and creating host certs
@ijy
ijy / sublime-text-3-setup.md
Last active December 31, 2025 12:36
My Sublime Text 3 setup.

Sublime Text 3 Setup

Install Package Control

Install Package Control for easy package management.

  1. Open the console with Ctrl+`
  2. Paste in the following:
@XVilka
XVilka / TrueColour.md
Last active January 10, 2026 13:26
True Colour (16 million colours) support in various terminal applications and terminals

THIS GIST WAS MOVED TO TERMSTANDARD/COLORS REPOSITORY.

PLEASE ASK YOUR QUESTIONS OR ADD ANY SUGGESTIONS AS A REPOSITORY ISSUES OR PULL REQUESTS INSTEAD!

@rb2k
rb2k / gist:8372402
Last active October 14, 2025 10:50
A jenkins script to clean up workspaces on slaves
// Check if a slave has < 10 GB of free space, wipe out workspaces if it does
import hudson.model.*;
import hudson.util.*;
import jenkins.model.*;
import hudson.FilePath.FileCallable;
import hudson.slaves.OfflineCause;
import hudson.node_monitors.*;
for (node in Jenkins.instance.nodes) {
@caulagi
caulagi / ubuntu-dev-setup.md
Last active July 14, 2025 20:00
Install necessary packages on a fresh Ubuntu box

Base steps

# Enable multiverse repository
sudo sed -i "/^# deb.*multiverse/ s/^# //" /etc/apt/sources.list

sudo apt-get update
sudo apt-get upgrade -y

export LANGUAGE=en\_US.UTF-8
@Chaser324
Chaser324 / GitHub-Forking.md
Last active December 2, 2025 20:05
GitHub Standard Fork & Pull Request Workflow

Whether you're trying to give back to the open source community or collaborating on your own projects, knowing how to properly fork and generate pull requests is essential. Unfortunately, it's quite easy to make mistakes or not know what you should do when you're initially learning the process. I know that I certainly had considerable initial trouble with it, and I found a lot of the information on GitHub and around the internet to be rather piecemeal and incomplete - part of the process described here, another there, common hangups in a different place, and so on.

In an attempt to coallate this information for myself and others, this short tutorial is what I've found to be fairly standard procedure for creating a fork, doing your work, issuing a pull request, and merging that pull request back into the original project.

Creating a Fork

Just head over to the GitHub page and click the "Fork" button. It's just that simple. Once you've done that, you can use your favorite git client to clone your repo or j

@clemtibs
clemtibs / dkcleanup.sh
Last active November 13, 2023 10:49
Bash script helper to remove Docker images and containers.
#!/bin/bash
# options:
# remove stopped containers and untagged images
# $ dkcleanup
# remove all stopped|running containers and untagged images
# $ dkcleanup --reset
# remove containers|images|tags matching {repository|image|repository\image|tag|image:tag}
# pattern and untagged images
# $ dkcleanup --purge {image}
#!/bin/sh
git filter-branch --env-filter '
OLD_EMAIL="[email protected]"
CORRECT_NAME="Your Correct Name"
CORRECT_EMAIL="[email protected]"
if [ "$GIT_COMMITTER_EMAIL" = "$OLD_EMAIL" ]
then