[Daishiman]

The problem with K&R is that is useless for building actual, working C applications. Even being up to date with the language's specs means very little as getting every different library up and running in each platform is a fairly high barrier, much more so than other platforms.

[pjc50]

The companion Kernighan and Pike is very good on building full Unix command line utilities. But yes, the platform learning process of getting to hello world can be remarkably hard.

[codeisawesome]

I never thought of "The UNIX Programming Environment" and "The C Programming Language" as companion books. Thanks for opening my eyes to that.