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I would like to use Image Magick to trim some images via 

convert -trim image.png image.png

Is there a way to register an alias in Fish Shell, that would shorten the above statement to something like this?

trim image.png

If so, how do I implement this?

doque
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1 Answers1

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fish does not have aliases; you need to define a function instead.

function trim
    convert -trim $argv[1] $argv[1]
end

Running fish -c help (or simply help if you are already in a fish session) will open the fish documentation in a web browser, where you can find the documentation for the function command used to define shell functions.

chepner
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