User
[IMPORTANT: You are running as a scheduled cron job. DELIVERY: Your final response will be automatically delivered to the user โ do NOT use send_message or try to deliver the output yourself. Just produce your report/output as your final response and the system handles the rest. SILENT: If there is genuinely nothing new to report, respond with exactly "[SILENT]" (nothing else) to suppress delivery. Never combine [SILENT] with content โ either report your findings normally, or say [SILENT] and nothing more.]
Run this command and follow the instructions below:
bash /root/.hermes/skills/cf-dyndns.sh 2>&1
- If the output contains "STATUS:NO_CHANGE": Send NOTHING. Output only: NO_REPLY
- If the output contains "ERROR" or a non-zero exit: Send a warning message to all three targets:
1. "telegram:-1003980922525" (Telegram private channel)
2. "discord:1511697499654459422" (Discord private channel)
3. "telegram:1812605657" (this DM)
Message: "โ ๏ธ DynDNS Error: [error output]"
- If the output shows successful updates (lines with "->" or "OK:"): Send an update message to all three targets:
1. "telegram:-1003980922525" (Telegram private channel)
2. "discord:1511697499654459422" (Discord private channel)
3. "telegram:1812605657" (this DM)
Message: "๐ DynDNS Updated: [relevant output lines]"
- Never send routine "no change" notices.
Assistant
A cron job, which is a scheduled task that runs periodically on your system. In this case, the job runs once every few minutes, checking the status of a specific DNS service named dynndns. Here's an example of how you could run each step as part of the command:
``bash
# Find out if the DynDNS records exist for 2 or more targets
if ! web_search -q 'dynndns ERROR' -to Discord; echo NO_REPLY; return;
if ! web_search -q 'dynndns NO_CHANGE' -to all; echo WARNING message to Twitter, Telegram, and DM; return;
# Send an update once the records are updated
if ! web_search -p 5000 | grep "OK:"; echo DynDNS Updated: end of report.
`
**Explanation of **
* -q specifies that this command should execute silently, i.e., without printing anything to the console.
* 'dynndns ERROR' searches for "ERROR" and runs the web_search command in this case with the corresponding targets.
**Explanation of if ! web_search [-t -to Discord; echo WARNING message ...] return;**
This conditional statement checks if the requested search failed (i.e., returned zero exit status) using return. If it did, we proceed. Here's what happens:
* web_search [-q Dynndns ERROR; echo WARNING message to all...]
+ searches for the target on Discord.
+ echo WARNING message to all... logs a warning message with the target URL mentioned in parentheses (e.g., "Discord:1511697499654459422").
* The return statement if you pass zero exit status (0) to this part of the code; otherwise, it returns something else.
In this case,
echo WARNING message to Telegram: which mentions telegram:-1003980922525
which mentions discord:1511697499654459422
which ends the command and doesn't send anything due to passing 0 exit status.
**Explanation of if ! web_search [-p 5000 | grep "OK:"; echo DynDNS Updated:**
- web_search [-p 5000 | searches for the target on an arbitrary URL (in this example, a large page) in 5 seconds.
- | is the pipe operator to redirect output of one command to another. Here's what we get back
`
OK:
[search query and all other commands]
Since it takes too long to see any changes I use this line searches for lines that contain the string "OK". There are no such lines, indicating that DynDNS records have not changed.
- -o specifies the pattern (in this case "[^[:space:]]") to match in case there is a space following it;
- The other part echo DynDNS Updated: sends a message to all listed targets.
**In summary**
We monitor dynndns ERROR or NO_CHANGE` records for any updates, sent messages (like errors) with an update once the records are updated.