Installing the Programming Environment for Sedgewick's "Algorithms" on Linux

install_algs4.sh

#!/bin/bash

# Based on http://algs4.cs.princeton.edu/linux/

declare -r ALGS4_DIRECTORY=~/.local/algs4

get_drjava() {
    wget http://algs4.cs.princeton.edu/linux/drjava.jar
    wget http://algs4.cs.princeton.edu/linux/drjava
    chmod 700 drjava
    mv drjava bin
}

get_libs() {
    wget http://algs4.cs.princeton.edu/code/algs4.jar
    wget http://algs4.cs.princeton.edu/linux/javac-algs4
    wget http://algs4.cs.princeton.edu/linux/java-algs4
    chmod 700 javac-algs4 java-algs4
    mv javac-algs4 bin
    mv java-algs4 bin
}

get_checkers() {
    wget http://algs4.cs.princeton.edu/linux/checkstyle.zip
    wget http://algs4.cs.princeton.edu/linux/findbugs.zip
    unzip checkstyle.zip
    unzip findbugs.zip
    wget http://algs4.cs.princeton.edu/linux/checkstyle.xml
    wget http://algs4.cs.princeton.edu/linux/findbugs.xml
    wget http://algs4.cs.princeton.edu/linux/checkstyle-algs4
    wget http://algs4.cs.princeton.edu/linux/findbugs-algs4
    chmod 700 checkstyle-algs4 findbugs-algs4
    mv checkstyle-algs4 bin
    mv findbugs-algs4 bin
    mv checkstyle.xml checkstyle-6.9
    mv findbugs.xml findbugs-3.0.1
}

print_path_info() {
    echo 'Add following line to ~/.bash_profile, ~/.profile, or ~/.bashrc:'
    echo "export PATH=\$PATH:$ALGS4_DIRECTORY/bin"
}

mkdir "$ALGS4_DIRECTORY"
cd "$ALGS4_DIRECTORY"
mkdir bin

get_drjava
get_libs
get_checkers
print_path_info

sed -i "s|INSTALL=.*|INSTALL=$ALGS4_DIRECTORY|" "$ALGS4_DIRECTORY/bin/javac-algs4"
sed -i "s|INSTALL=.*|INSTALL=$ALGS4_DIRECTORY|" "$ALGS4_DIRECTORY/bin/java-algs4"
sed -i "s|INSTALL=.*|INSTALL=$ALGS4_DIRECTORY|" "$ALGS4_DIRECTORY/bin/checkstyle-algs4"
sed -i "s|INSTALL=.*|INSTALL=$ALGS4_DIRECTORY|" "$ALGS4_DIRECTORY/bin/findbugs-algs4"
sed -i "s|jar=.*|jar=$ALGS4_DIRECTORY/drjava.jar|" "$ALGS4_DIRECTORY/bin/drjava"