compiling.xml: Don't recommend backticks
compiling.xml: Don't recommend backticks
Use of backticks is considered as a bad practices in shell programming
and should generally be avoided.
Summary of advanges of '$()' form over backticks from stackoverflow:
https://stackoverflow.com/questions/9449778/what-is-the-benefit-of-using-instead-of-backticks-in-shell-scripts