I have read online and in print (the ANSI C book by Kochan) that one cannot use the dollar sign $ in a variable name when programming in C. Yet, when I created the following code to test variable names as part of exercise 2 in chapter 4 of Kochan's book I am able to compile and run the code. So,...

I am trying to follow this previous question and this associated wiki page to convert flacs to mp3s with a bash script. I have tried it with avconv and ffmpeg, with *.flac and ./*.flac, and I keep getting a *.flac: no such file or directory even though my target directory definitely has a flac fi...