This small book is pleasant to handle and browse. It is part of a collection of similar books generally dealing with programming languages (JavaScript, Ruby, Java, Python). But in the case of Linux, this reduces what can be explained to what can be done without any graphic interface, in the way we used Unix on a teletype or a Flexowriter in the 1980s. We did many things indeed, and many of the current complicated graphic applications are simply wrappers for single commands with many options. Consider for example ffmpeg with its more than 50 options, and the poor graphic interfaces trying to make it usable.
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