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nixpkgs/nixos/modules/tasks/tty-backgrounds-combine.sh

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source $stdenv/setup
ttys=($ttys)
themes=($themes)
ensureDir $out
defaultName=$(cd $default && ls | grep -v default)
echo $defaultName
ln -s $default/$defaultName $out/$defaultName
ln -s $defaultName $out/default
for ((n = 0; n < ${#ttys[*]}; n++)); do
tty=${ttys[$n]}
theme=${themes[$n]}
echo "TTY $tty -> $theme"
if [ "$theme" != default ]; then
themeName=$(cd $theme && ls | grep -v default)
ln -sfn $theme/$themeName $out/$themeName
else
themeName=default
fi
if test -e $out/$tty; then
echo "Multiple themes defined for the same TTY!"
exit 1
fi
ln -sfn $themeName $out/$tty
done