<b_jonas> slashlearn source//Sources for HackEgo can be found at https://bitbucket.org/GregorR/hackbot + https://bitbucket.org/GregorR/multibot + https://bitbucket.org/GregorR/umlbox . Sources for HackEso can be found at https://bitbucket.org/fizzie/hackbot + https://bitbucket.org/fizzie/multibot + https://bitbucket.org/fizzie/umlbox .

if [ -z $(tr [A-Z] [a-z] <<< "$1") ]; then echo "Hello, world!"; else if [ -f hw/$(tr [A-Z] [a-z] <<< "$1") ]; then cat hw/$(tr [A-Z] [a-z] <<< "$1"); else echo "Your language does not exist"; fi; fi