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#!/usr/bin/env bash
#
# shoal(1) -- Print all the non-wildcard Host names (first one per line) from
# an ssh_config(5) file, defaulting to $HOME/.ssh/config.
#
# Author: Tom Ryder <tom@sanctum.geek.nz>
# Copyright: 2014
# License: Public domain
#
# Name self
self=shoal
while read -r option value _ ; do
if [[ $option == 'Host' && $value != *[^[:alnum:]_-]* ]] ; then
printf '%s\n' "$value"
fi
done < "${1:-$HOME/.ssh/config}"
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