Difference between revisions of "UNIX assignments"
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[[category:Linux]][[Category:UNIX]] | [[category:Linux]][[Category:UNIX]] | ||
== Network management with ping == | == Network management with ping == | ||
| − | Write a bash script that will ping | + | Write a bash script that will ping 185.22.74.79 'mars.merhot.dk' '''once''' every minute. If it fails three times in a row (Three minutes) it should write to your terminal and send a mail to you. You have to be logged in twice. |
*One session where you run your program | *One session where you run your program | ||
*Another session where you will receive your messages and read your mail | *Another session where you will receive your messages and read your mail | ||
| Line 19: | Line 19: | ||
if ping -c 1 192.168.142.1 >/dev/null | if ping -c 1 192.168.142.1 >/dev/null | ||
then echo "Ping succeded." | then echo "Ping succeded." | ||
| − | else echo "Ping Failed. | + | else echo "Ping Failed." |
fi | fi | ||
</pre> | </pre> | ||
Latest revision as of 08:30, 25 September 2019
Network management with ping
Write a bash script that will ping 185.22.74.79 'mars.merhot.dk' once every minute. If it fails three times in a row (Three minutes) it should write to your terminal and send a mail to you. You have to be logged in twice.
- One session where you run your program
- Another session where you will receive your messages and read your mail
Used programs
- ping
- write
- sleep
Getting started
Use the man pages for ping, write and mail.
[heth@bkshost bin]$ man ping
Experiment with the commands until you know how they work. And make them work for you.
To test if ping failed or succeded you can use if
if ping -c 1 192.168.142.1 >/dev/null then echo "Ping succeded." else echo "Ping Failed." fi