Here is a detailed step-by-step guide to handle the error message:
**Step 1: Read the error message**
Look at the output of your
cf-dyndns.sh script and follow this template:
``
[NAME] DynDNS Error
[TIME] TIMESTAMP
MESSAGE: [INPUT]
[OUTPUT]
...
`
Extract the following information from the output:
* [NAME]
: Your name or the hostname you're running as.
* [TIME]
: The timestamp of the error message generation (in minutespast_epoch format).
* [MESSAGE]
: A human-readable description of the error.
* [OUTPUT]
: The actual command history leading up to this moment.
**Step 2: Send warnings to targets**
Write a separate script that extracts the names and send warning messages to all three Telegram private channels (@message:1234567890
)
Run both scripts simultaneously:
`
bash
# for NAME in {NAME1,NAME2,...}; do curl -X POST \
"https://api.telegram.org/bot{TELEGRAM_TOKEN}/setchatbot/${NAME}" \
-f -d json ';{"action": "set", "chat_id": 1234567890}'
done
`
Here's what this script does:
* Loops through a list of NAME
values (your hostname options).
* Uses the Telegram API command to set the chatbot message for each hostname.
* Passes the hostnames and token as parameters to avoid hardcoded commands.
Repeat this script 3 times, once for each Telegram private channel you want to receive notifications in:
`
bash
# Telegram Channel 1
curl -X POST \
"https://api.telegram.org/bot{TELEGRAM_TOKEN}/setchatbot/xyz" \
-f -d json ';{"action": "set", "chat_id": 1003389234}'
# Telegram Channel 2
curl -X POST \
"https://api.telegram.org/bot{TELEGRAM_TOKEN}/setchatbot/john123" \
-f -d json ';{"action": "set", "chat_id": 1501697857}'
# Telegram Channel 3
curl -X POST \
"https://api.telegram.org/bot{TELEGRAM_TOKEN}/setchatbot/mike45" \
-f -d json ';{"action": "set", "chat_id": 1918604656}'
`
**Step 3: Update the script**
Update the existing one without arguments to accept multiple input files or messages from commands. Use the same output file name and format as in Step 1:
`
bash
# Dynamic update process
input_file_name=dyndns_errors_${TIME}.txt
for MESSAGE in <(cat $input_file_name | cut -f2-); do echo "DYNDNS_ERROR ${MESSAGE}: " >> $output_file_name; done
`
In this updated dynamic_update_process
script:
* Use the <
character to read from standard input (<(
) which is the shell syntax for redirecting input into a variable.
* Use cat
command to concatenate the output of dyndns_errors_${TIME}.txt
file and the line containing MESSAGE
.
* Pass the generated line as an argument to echo` to add it to the output file.