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How to get exit status from a piped command in Linux shell

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http://linuxaria.com – It’s funny how through small daily tasks sometimes it happen to find new features or commands that you do not knew not, and today this thing happened to me. In particular, I had to do something trivial on the shell of a server, run : command1 | tail-n 2 i use tail to keep, from a significant long output, only the last 2 lines which then i use in another function, but beyond this, I needed to understand if command1 was terminated with an exit code of 0 or if the code was not 0 which number it was. (HowTos)