How could it be inappropriate to hire open source authors to do closed-source? Most open source developers do not just magically come out of the woodwork. There are plenty of small-time coders (particularly those who submit things to Freshmeat) who don't seem to have "real" programming jobs, but most large-scale developers who do open source surely have jobs doing other work for commercial entities.
How do you think these people make a living, anyway? Mowing Bill Gates's lawn?
Uber-cool? Multiple redirection is decades old
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To Z Or Not To Z
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It somewhat defeats the purpose of UNIX componentism to build this sort of functionality into the shell. Your "multiple redirection"
$ ls > foo > bar
can be accomplished in a shell-independent manner like this:
$ ls | tee foo > bar
or the more extreme case
$ ls | tee foo | tee bar | tee baz > quuz
Although I admit it's faster to type when the shell does it.
Learn your standard UNIX tools. They can do much more than you probably assume.
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It is an entirely different breed of human who understands exactly what is going on when you do that.
How do you think these people make a living, anyway? Mowing Bill Gates's lawn?
It somewhat defeats the purpose of UNIX componentism to build this sort of functionality into the shell. Your "multiple redirection"
$ ls > foo > bar
can be accomplished in a shell-independent manner like this:
$ ls | tee foo > bar
or the more extreme case
$ ls | tee foo | tee bar | tee baz > quuz
Although I admit it's faster to type when the shell does it.
Learn your standard UNIX tools. They can do much more than you probably assume.