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Why printf is superior to echo in Linux scripts

The printf command offers well-defined behavior following the POSIX standard, which means it works the same way across shells ...
EDN

Make the most out of printf

The oldest, tried-and-true debugging technique in embedded development is to sprinkle printf statements throughout the software in the hope of gleaning insight into system behavior. Using printf is ...
Linux Journal

Bash's Built-in printf Function

Even if you're already familiar with the printf command, if you got your information via "man printf" you may be missing a couple of useful features that are provided by bash's built-in version of the ...