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Old 04-18-2012, 04:21 PM   #1
robfraser
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Sort numbers in ascending order using echo, and as an alias


I am trying to sort a list of numbers in ascending order. I got the following from another closed thread. (Thank You)

echo "8,56,15,37,21" | tr ',' '\n'|sort -n|paste -s -d','

I would now like to use it as an alias, so I can enter a list of numbers and have them sorted, but when I set it up like this:

alias st 'echo $1 |tr ',' '\n'|sort -n|paste -s -d',' '

And run it, I get the following error.

paste: 8,56,15,37,21: No such file or directory

Is there a way to have the alias recognize the single quotes?
 
Old 04-18-2012, 04:41 PM   #2
Nominal Animal
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Alias does not work that way, so your approach will not work.

What you need is a shell function; just consider it another type of alias. Try this:
Code:
st () {
    echo "$*" | tr '\t\n\v\f\r ,' '\n\n\n\n\n\n\n' | sort -n | paste -s -d ','
}

Last edited by Nominal Animal; 04-18-2012 at 04:42 PM.
 
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Old 04-18-2012, 04:44 PM   #3
grail
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Aliases do not use parameters, but you could create a function in your .bashrc (assuming bash) and call it as required.
 
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