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Fusion/gist:d0a24928b5bab8e83486c4a96f652829

Created November 14, 2021 21:43
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Check missing packages before migrating from Brew to Nix on MacOS
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gistfile1.txt
# Note: this is a first pass. Some packages may be reported as missing due to their unorthodox naming; e.g. Python
brew update -q;nix-channel --update&>/dev/null;export T1=$(mktemp);T2=$(mktemp);brew list -1>$T1;nix-env -qaP|awk '{print $2}'>$T2;for pkg in $(cat $T1);do grep "^$pkg" $T2>/dev/null;[ $? -eq 0 ] || echo "Package $pkg not available.";done
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Fusion commented Nov 14, 2021

Multiline version:

brew update -q
nix-channel --update&>/dev/null
export T1=$(mktemp)
T2=$(mktemp)
brew list -1>$T1
nix-env -qaP|awk '{print $2}'>$T2
for pkg in $(cat $T1)
	do grep "^$pkg" $T2>/dev/null
	[ $? -eq 0 ] || echo "Package $pkg not available."
done

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