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18 lines
528 B
Nix
18 lines
528 B
Nix
{ name, writeShellApplication, openssh, ... }:
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writeShellApplication {
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inherit name;
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runtimeInputs = [ openssh ];
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text = ''
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HISTFILE="$HOME"/.histfile
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last_ssh_cmd=$(grep -E "ssh " "$HISTFILE" | sed -E 's/^: [0-9]+:[0-9]+;//' | grep "^ssh " | tail -1)
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host=$(echo "$last_ssh_cmd" | sed -E 's/.*ssh ([^@ ]+@)?([^ ]+).*/\2/')
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if [[ -n $host ]]; then
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echo "Removing SSH host key for: $host"
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ssh-keygen -R "$host"
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else
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echo "No valid SSH command found in history."
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fi
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'';
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}
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