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Add ability to establish a link indefinitely #2

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Add ability to establish a link indefinitely #2

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5aa1624
Add ability to establish a link indefinitely
jschollenberger Feb 22, 2026
f8b512c
add help text
jschollenberger Feb 22, 2026
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16 changes: 14 additions & 2 deletions linkmon.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -62,6 +62,7 @@ function ctrl_c() {
if [[ -z "$1" || -z "$2" ]]; then
echo "Usage: linkmon.sh <node ID to connect to> <link time in minutes> <optional local node ID>"
echo "For example, to connect to node 53209 for 60 minutes you would run: linkmon.sh 53209 60"
echo "To connect indefinitely, set link time to 0. linkmon will connect then exit: linkmon.sh 53209 0"
echo "Please specify link to connect to and for how long. Exiting..."
exit 1
else
Expand Down Expand Up @@ -172,15 +173,26 @@ seconds_to_minutes() {
echo `echo "$1 / 60" | bc`
}


echo_date "Monitoring temporary transceive link: $TEMPORARY_LINK $TEMPORARY_LINK_INFO"
echo_date "The link will automatically disconnect after $LINK_TIME minutes at `date -d \"$LINK_TIME minutes\" +'%H:%M'` OR after $INACTIVITY_ALLOWANCE minutes of inactivity."

if [ "$LINK_TIME" = 0 ]; then
echo_date "Link duration set to 0 (infinite). Announcing link, connecting, then exiting linkmon."
else
echo_date "The link will automatically disconnect after $LINK_TIME minutes at `date -d \"$LINK_TIME minutes\" +'%H:%M'` OR after $INACTIVITY_ALLOWANCE minutes of inactivity."
fi

echo
echo_date "Disconnecting existing outbound links$(disconnect_outbound_links)"
echo_date "Establishing connection to: $TEMPORARY_LINK..."
link_connect
sleep 1 & wait $!
echo_date "Link Information: $(link_status)"

if [ "$LINK_TIME" = 0 ]; then
echo_date "Infinite connection established. Linkmon shutting down..."
exit
fi

echo
echo_date "Current TX time for Node $LOCALNODE: $(seconds_to_timestamp $CURRENTTXTIME)"
echo_date "Sleeping $SLEEP_TIME seconds..."
Expand Down