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|
#!/bin/bash
CFG_FILE=$HOME/.config/ssh-check.list
CFG_FILE_MAX=$((2**31-1))
read SSH_OPTIONS <<END
-o ConnectTimeout=3
-o ControlPath=none
-o PasswordAuthentication=no
-o StrictHostKeyChecking=yes
END
quietly()
{
"$@" </dev/null >/dev/null 2>&1
}
c ()
{
local h hosts
read -r -N "$CFG_FILE_MAX" hosts < "$CFG_FILE"
if [ $# = 0 ]; then
set -- -4
fi
while true; do
{
for h in $hosts
do
( if p=$(quietly ssh $SSH_OPTIONS -n "$h" -- true)
then
echo "Succeeded: $h"
else
echo "Failed: $h"
fi ) &
done
wait
} | column -t -s'$'
tty -s && break
sleep 5
done
}
edit_config()
{
set -e
f=$(tempfile)
if [ -e "$CFG_FILE" ]
then
cp "$CFG_FILE" "$f"
fi
touch -r "$f" "$f".timestamp
$EDITOR "$f"
[ -e "$f" -a "$f" -nt "$f".timestamp ]
mv "$f" "$CFG_FILE"
set +e
rm "$f".timestamp
}
while [ $# -gt 0 ]
do
case "$1" in
--edit) edit_config; exit ;;
--) shift; break;;
*) exit 1 ;;
esac
shift
done
if [ -t 0 ] && ! [ -e "$CFG_FILE" ]
then
edit_config
fi
c "$@"
|
