A function to discover why a package is masked in portage on gentoo. Source: http://blogs.gentoo.org/news/2014/06/02/gentoo-monthly-newsletter-may-2014/#Tip_of_the_month

whymask.sh

#!/usr/bin/env bash

whymask() {
    find /usr/portage/profiles/ -name '*.mask' -exec \
        awk -vRS= "/${*/\//.}/ {
                print \" \" FILENAME \":\", \"\n\" \"\n\" \$0 \"\n\"
        }" {} + | less
}

whymask $1

Incase I forget, the correct way to define a bash inline function is:

function() { echo "Function"; }

The space after '{' is important.