Let's all take a moment to appreciate how ridiculously complicated it is to just sum up numbers coming into STDIN on the shell.
How does #coreutils / #moreutils not have something for this? (or does it? 🤔)
Happy to hear suggestions for a multitool for math in the shell.
UPDATE: see num-utils¹, and probably #nuShell
Many years ago I wrote the command line tool errno, and today I spent several minutes looking for it. I'd forgotten it's in #moreutils by @joeyh now.
Still useful from time to time.
"errno 2" → "ENOENT 2 No such file or directory+
"errno EMFILE" → "EMFILE 24 Too many open files"
@ervan Without changing your actual #RSpec or #CI setup, you can create multiple #Rake tasks to run specific tags or spec files. Then use #gnuparallel (or `parallel` from #moreutils) to run the tasks on multiple CPUs or cores. For GNU, see the `-j`, `--use-cores-instead-of-threads`, and `--use-sockets-instead-of-threads` flags.
You can also use subshells or background tasks for OS allocation in #bash, #zsh, or #fish. Also, consider threading without a GIL on #TruffleRuby.
Weekly reminder that if you have both manpages and moreutils installed,
"man pee"
is an actually valid, useful command in #Linux . For that matter pee is quite useful as well, for stuff such as hashing or de/encoding files.
#moreutils is a collection of useful utilities.
moreutils is a set of tools in the same vein of coreutils, providing functionality that is difficult to achieve using pure shell. moreutils includes tools to combine files line by line conditionally, executing a command if stdin has content, teeing to pipes, timestamping standard input, collecting up stdin then writing to a file, and more.
Website 🔗️: https://joeyh.name/code/moreutils/
apt 📦️: moreutils
@mike nope, shuf outputs all lines in a randomized order, which is now what the spec required here.
BTW, since that message I've implemented #stocat to address this and submitted it for inclusion into #moreutils: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=961638
Yann Büchau 
Lars Wirzenius
Todd A. Jacobs | Rubyist
«lambalicious»
OSTechNix
skunksarebetter
Stefano Zacchiroli