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@nathanhaigh
nathanhaigh / interleave_fastq.sh
Last active March 28, 2022 09:11
Interleave reads from 2 FASTQ files and output to STDOUT.
#!/bin/bash
# Usage: interleave_fastq.sh f.fastq r.fastq > interleaved.fastq
#
# Interleaves the reads of two FASTQ files specified on the
# command line and outputs a single FASTQ file of STDOUT.
#
# Can interleave 100 million paired reads (200 million total
# reads; a 2 x 22Gbyte files), in memory (/dev/shm), in 6m54s (414s)
#
# Latest code: https://gist.github.com/4544979
@nathanhaigh
nathanhaigh / deinterleave_fastq.sh
Last active January 22, 2024 15:25
deinterleave FASTQ files
#!/bin/bash
# Usage: deinterleave_fastq.sh < interleaved.fastq f.fastq r.fastq [compress]
#
# Deinterleaves a FASTQ file of paired reads into two FASTQ
# files specified on the command line. Optionally GZip compresses the output
# FASTQ files using pigz if the 3rd command line argument is the word "compress"
#
# Can deinterleave 100 million paired reads (200 million total
# reads; a 43Gbyte file), in memory (/dev/shm), in 4m15s (255s)
#
@mejibyte
mejibyte / gist:1268157
Created October 6, 2011 18:15
Implementation of Ukkonen's algorithm to build a prefix tree in O(n)
using namespace std;
#include <algorithm>
#include <iostream>
#include <iterator>
#include <sstream>
#include <fstream>
#include <cassert>
#include <climits>
#include <cstdlib>
#include <cstring>
@cypres
cypres / gpoint.php
Created February 23, 2011 14:20
PHP class to convert Latitude & Longitude coordinates into UTM & Lambert Conic Conformal Northing/Easting coordinates.
<?php
/**
* PHP class to convert Latitude & Longitude coordinates into UTM & Lambert Conic Conformal Northing/Easting coordinates.
*
* This class encapsulates the methods for representing a geographic point on the earth in three different coordinate systema. Lat/Long, UTM and Lambert Conic Conformal.
*
* Code for datum and UTM conversion was converted from C++ code written by Chuck Gantz (chuck.gantz@globalstar.com) from http://www.gpsy.com/gpsinfo/geotoutm/
* This code was converted into PHP by Brenor Brophy (brenor@sbcglobal.net) and later refactored for PHP 5.3 by Hans Duedal (hd@onlinecity.dk).
*
@isaacs
isaacs / node-and-npm-in-30-seconds.sh
Last active March 8, 2024 02:11
Use one of these techniques to install node and npm without having to sudo. Discussed in more detail at http://joyeur.com/2010/12/10/installing-node-and-npm/ Note: npm >=0.3 is *safer* when using sudo.
echo 'export PATH=$HOME/local/bin:$PATH' >> ~/.bashrc
. ~/.bashrc
mkdir ~/local
mkdir ~/node-latest-install
cd ~/node-latest-install
curl http://nodejs.org/dist/node-latest.tar.gz | tar xz --strip-components=1
./configure --prefix=~/local
make install # ok, fine, this step probably takes more than 30 seconds...
curl https://www.npmjs.org/install.sh | sh