blob: df5274bbf1f7206116cb9117e716676ef051e199 (
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|
#!/bin/bash
CFG_FILE=$HOME/.config/ssh-check.list
TIMEOUT=5 # seconds
read_all='read -N2147483647'
$read_all SSH_OPTIONS <<END
-o ConnectTimeout=$TIMEOUT
-o ControlPath=none
-o PasswordAuthentication=no
-o StrictHostKeyChecking=yes
END
quietly()
{
"$@" </dev/null >/dev/null 2>&1
}
match()
{
local search_text="$1" search_pattern
shift
for search_pattern in "$@"
do
case "$search_text" in
$search_pattern) return ;;
esac
done
false
}
main()
{
local h hosts
$read_all -r hosts < "$CFG_FILE"
host_field_width=1
for h in $hosts
do
if [ ${#h} -gt $host_field_width ]
then
host_field_width=${#h}
fi
done
while true; do
{
for h in $hosts
do
[ $# = 0 ] || match "$h" "$@" || continue
( if uptime=$(ssh $SSH_OPTIONS -n "$h" -- uptime 2>/dev/null)
then
printf "%-15s %-${host_field_width}s %s\n" "Succeeded:" "$h" "${uptime# }"
else
printf "%-15s %-${host_field_width}s\n" "Failed:" "$h"
fi ) &
done
wait
} | column -t -s'$'
tty -s && break
sleep 5
done
}
edit_config()
{
set -e
f=$(mktemp)
if [ -e "$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
}
unset run_anyway do_edit
while [ $# -gt 0 ]
do
case "$1" in
--edit) do_edit=y;;
--run) run_anyway=y;;
--) shift; break;;
-*) exit 1 ;;
*) break;;
esac
shift
done
if [ "$do_edit" ]
then
edit_config
r=$?
if ! [ "${run_anyway}" ]
then
exit $r
fi
elif [ ! -e "$CFG_FILE" -a -t 0 ]
then
edit_config
fi
main "$@"
|
