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Re: shell wrappers for trig and other mathematical functions

On Thu, 3 Oct 2019 at 02:39, Lee <ler762@gmail.com> wrote:
> On 10/2/19, Greg Wooledge <wooledg@eeg.ccf.org> wrote:

>> This is what shell functions are for.  You can just drop the shell
>> functions into your ~/.bashrc and then use them in every interactive
>> shell thenceforth.

>> I strongly recommend this approach over the aliases that were previously
>> suggested, by the way.  Functions are so much cleaner.

> How are functions cleaner?

> I've been using aliases for I don't know how long and haven't noticed
> any problems:

> what am I missing?

Seeing as this is a FAQ, I hope it's not impolite for me to
respectfully chip-in with some links in reply:


I understand "cleaner" to mean that functions take arguments, so they
work in a way that is more intuitive and robust.

One mechanism (alias) is a leading-text substitution, the other (function)
is a programming language.

Use what meets your needs, with aware of limitations and alternatives.

aliases have an easy user interface.

'man bash' says:
      For almost every purpose, aliases are superseded by shell functions.

I hope this is a useful response, apologies if you knew all this already.

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