all: c csharp java bash php hack perl echo Done; c: helloworld.c /usr/bin/gcc gcc -o helloworld helloworld.c ./helloworld rm ./helloworld java: helloworld.java /usr/bin/java /usr/bin/javac javac helloworld.java java helloworld rm helloworld.class bash: helloworld.bash /usr/bin/bash bash helloworld.bash php: helloworld.php /usr/bin/php php helloworld.php hack: helloworld.php /usr/bin/hhvm hhvm --php helloworld.php perl: helloworld.pl /usr/bin/perl perl ./helloworld.pl csharp: helloworld.csharp /usr/bin/mono /usr/bin/mcs mcs helloworld.csharp mono helloworld.exe rm helloworld.exe