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@douglas
douglas / update_git_repos.sh
Created October 14, 2011 15:04
Update all git repositories under a base directory
#!/bin/bash
# store the current dir
CUR_DIR=$(pwd)
# Let the person running the script know what's going on.
echo "\n\033[1mPulling in latest changes for all repositories...\033[0m\n"
# Find all git repositories and update it to the master latest revision
for i in $(find . -name ".git" | cut -c 3-); do
@masak
masak / explanation.md
Last active October 20, 2025 06:23
How is git commit sha1 formed

(The below text is licensed with CC0, which means that if you want to use or translate it, that is OK by me.)

Ok, I geeked out, and this is probably more information than you need. But it completely answers the question. Sorry. ☺

Locally, I'm at this commit:

$ git show
commit d6cd1e2bd19e03a81132a23b2025920577f84e37
Author: jnthn <[email protected]>

Date: Sun Apr 15 16:35:03 2012 +0200

@gerjantd
gerjantd / gist:2436686
Created April 21, 2012 11:24
Github: fork your own repo
http://bitdrift.com/post/4534738938/fork-your-own-project-on-github
1. Create a new repo named bar at github.com
2. git clone https://[email protected]/gerjantd/foo.git bar
3. cd bar
4. vi .git/config
replace foo with bar
@MohamedAlaa
MohamedAlaa / tmux-cheatsheet.markdown
Last active October 31, 2025 17:31
tmux shortcuts & cheatsheet

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname
@arjones6
arjones6 / numpy_cffi_arrays.py
Created May 7, 2013 16:22
Passing multidimensional numpy arrays to C using cffi.
import numpy
from cffi import FFI
ffi = FFI()
ffi.cdef("""
void single_test(double *x, int n);
void multi_test(double **x, int n, int m);
""")
C = ffi.dlopen("./simple.so")
@MikeInnes
MikeInnes / startup.jl
Last active April 28, 2025 14:51
Some useful macros for Julia
# Repeat an operation n times, e.g.
# @dotimes 100 println("hi")
macro dotimes(n, body)
quote
for i = 1:$(esc(n))
$(esc(body))
end
end
end
@kevin-smets
kevin-smets / iterm2-solarized.md
Last active October 31, 2025 08:25
iTerm2 + Oh My Zsh + Solarized color scheme + Source Code Pro Powerline + Font Awesome + [Powerlevel10k] - (macOS)

Default

Default

Powerlevel10k

Powerlevel10k

@lashex
lashex / amazon-linux-x11-instr.txt
Created April 3, 2014 05:25
Getting Amazon Linux working with X11
# These instructions assume you are using a Linux or Mac machine as
# the “local” machine and an Amazon Linux as the “remote” machine.
# Here’s one way to get X11 working between the two.
# on the local machine (Linux or Mac with X11 already installed)
$ ssh -X -i <amazon_key.pem> ec2-user@<remote_ec2_box_name>
# then on the remote Amazon Linux EC2 box
$ sudo yum install xauth
$ sudo yum install xterm
@brenopolanski
brenopolanski / merge-pdf-ghostscript.md
Last active August 16, 2025 10:10
Merge multiple PDFs using Ghostscript

A simple Ghostscript command to merge two PDFs in a single file is shown below:

gs -dNOPAUSE -sDEVICE=pdfwrite -sOUTPUTFILE=combine.pdf -dBATCH 1.pdf 2.pdf

Install Ghostscript:

Type the command sudo apt-get install ghostscript to download and install the ghostscript package and all of the packages it depends on.

@domenic
domenic / 0-github-actions.md
Last active June 6, 2025 08:01
Auto-deploying built products to gh-pages with Travis

Auto-deploying built products to gh-pages with GitHub Actions

This is a set up for projects which want to check in only their source files, but have their gh-pages branch automatically updated with some compiled output every time they push.

A file below this one contains the steps for doing this with Travis CI. However, these days I recommend GitHub Actions, for the following reasons:

  • It is much easier and requires less steps, because you are already authenticated with GitHub, so you don't need to share secret keys across services like you do when coordinate Travis CI and GitHub.
  • It is free, with no quotas.
  • Anecdotally, builds are much faster with GitHub Actions than with Travis CI, especially in terms of time spent waiting for a builder.