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#!/bin/sh
if [ -z "$1" ]; then
echo "Usage: $0 <comment>" 1>&2
exit 1
fi
comment=$1
count=`ls ~/ra/ra-*-$comment-*.tar.gz 2>/dev/null | wc -l`
if [ $count -gt 1 ]; then
echo "More than 1 file from $comment in ~/ra. Leave only one file." 1>&2
ls ~/ra-*-$comment-*.tar.gz
exit 1
fi
if [ $count -eq 0 ]; then
echo "No files with name $comment in ~/ra." 1>&2
ls ~/ra-*-$comment-*.tar.gz
exit 1
fi
file=`ls ~/ra/ra-*-$comment-*.tar.gz`
port=`echo $file | sed 's/.*ra-\([^-]\+\)-.*/\1/'`
keyfile=`echo $file | sed 's/.tar.gz$/-key/'`
tar xzf $file -O key > $keyfile
chmod 600 $keyfile
perl -e '$host="'ra-$comment'"; $/=undef; $_=<>; s/^Host\s+(${host}$).*?((?=^Host)|\s*\Z)//gsm; print' ~/.ssh/config > ~/.ssh/config.new
cat >> ~/.ssh/config.new <<EOF
Host ra-$comment
HostName localhost
User support
Port $port
IdentityFile $keyfile
ForwardX11 no
EOF
mv -f ~/.ssh/config.new ~/.ssh/config
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