Hacker News Top Stories with Summaries (November 23, 2023)
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<h1> Hacker News Top Stories</h1>
<p>Here are the top stories from Hacker News with summaries for November 23, 2023 :</p>
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Reflecting on 18 Years at Google
Summary: Hixie reflects on his 18-year tenure at Google, from joining the company in 2005 to his recent resignation. He praises the early post-IPO Google for its genuine care for doing the right thing and its guiding principle of "don't be evil." However, he notes a decline in Google's culture, transparency, and morale over the years, attributing it to a lack of visionary leadership and the rise of inept middle management. Despite these challenges, Hixie believes it's not too late for Google to heal and return to its original mission.
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Test, [, and [[ (2020)
Summary: Unix systems have a binary named "[" which is the same as "test". Both are used in shell scripts to evaluate expressions, returning 0 if true and 1 if false. The "test" binary checks its argv[0] to see if it's invoked as "test" or "[". The "[" command is more commonly used, but "test" can also be used. The "if" statement in shell scripts takes a command as its argument and runs it to get its exit code. The "[[" command is a Bash extension that replaces "[" and is guaranteed to be a builtin.