Hello everyone! I had installed a software, but the path not in environment variable, so, every time I want to start it must input its full path in terminal, it's too trouble. so, I had established a hard link like this : Code: ln /home/yeosn/programs/oald8/oald8 /usr/local/bin/oald8 but when I typed 'oald8' in terminal, it prompted "Cannot find oald8 runtime directory. Exiting." Why? How can I solve this problem?