Teknologisk videncenter - User contributions [en]

Talk:UNIX assignments

2009-02-12T19:04:40Z

Astifl:

== Answer ==
Sorry but cant reach the server from home. (Problem on gateway)
Will you please cut-and-paste a copy of your program on the Wiki.
:-) Henrik

== Tiedote ==
It's made in WIKI on the name "PINGUIN" at the search... Thanks. ILja

Talk:UNIX assignments

2009-02-12T15:43:44Z

Astifl:

Could you give an advise - what's wrong with 14th line?
Program's name is "PINGUIN"

||||||program begins|||||
#!/bin/bash
K="yes"
A=0

while test $K="yes"
do

adresses="192.168.142.1 mars.tekkom.dk 172.16.4.77"
for adress in $adresses
do

if ping -c $adress >/dev/null
then echo "Ping $adress succeded."
else echo "Ping $adress Failed." | $A=`expr $A + 1`
fi
done

if test $A -ge 3 then $A=0 |
write astifl ["3 times failed"]|
mail astifl ["3 times failed"]
fi

sleep 60
done
|||||end of program|||||

It's writing smth like this
Usage: ping [-LRUbdfnqrvVaA] [-c count] [-i interval] [-w deadline]
[-p pattern] [-s packetsize] [-t ttl] [-I interface or address]
[-M mtu discovery hint] [-S sndbuf]
[ -T timestamp option ] [ -Q tos ] [hop1 ...] destination
./PINGUIN: line 14: 0=1: command not found
ping: bad number of packets to transmit.
./PINGUIN: line 14: 0=1: command not found
Usage: ping [-LRUbdfnqrvVaA] [-c count] [-i interval] [-w deadline]
[-p pattern] [-s packetsize] [-t ttl] [-I interface or address]
[-M mtu discovery hint] [-S sndbuf]
[ -T timestamp option ] [ -Q tos ] [hop1 ...] destination
./PINGUIN: line 14: 0=1: command not found

Talk:UNIX assignments

2009-02-12T15:41:47Z

Astifl: New page: Could you give an advise - what's wrong with 14th line? ||||||program begins||||| #!/bin/bash K="yes" A=0 while test $K="yes" do adresses="192.168.142.1 mars.tekkom.dk 172.16.4.77" ...

Could you give an advise - what's wrong with 14th line?

||||||program begins|||||
#!/bin/bash
K="yes"
A=0

while test $K="yes"
do

adresses="192.168.142.1 mars.tekkom.dk 172.16.4.77"
for adress in $adresses
do

if ping -c $adress >/dev/null
then echo "Ping $adress succeded."
else echo "Ping $adress Failed." | $A=`expr $A + 1`
fi
done

if test $A -ge 3 then $A=0 |
write astifl ["3 times failed"]|
mail astifl ["3 times failed"]
fi

sleep 60
done
|||||end of program|||||

It's writing smth like this
Usage: ping [-LRUbdfnqrvVaA] [-c count] [-i interval] [-w deadline]
[-p pattern] [-s packetsize] [-t ttl] [-I interface or address]
[-M mtu discovery hint] [-S sndbuf]
[ -T timestamp option ] [ -Q tos ] [hop1 ...] destination
./PINGUIN: line 14: 0=1: command not found
ping: bad number of packets to transmit.
./PINGUIN: line 14: 0=1: command not found
Usage: ping [-LRUbdfnqrvVaA] [-c count] [-i interval] [-w deadline]
[-p pattern] [-s packetsize] [-t ttl] [-I interface or address]
[-M mtu discovery hint] [-S sndbuf]
[ -T timestamp option ] [ -Q tos ] [hop1 ...] destination
./PINGUIN: line 14: 0=1: command not found

UNIX assignments

2009-02-12T15:07:06Z

Astifl:

[[category:Linux]][[Category:UNIX]]
== Network management with ping ==
Write a bash script that will ping 192.168.142.1, mars.tekkom.dk, 172.16.4.77 '''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
*mail
*sleep
=== Getting started ===
Use the ''man'' pages for ping, write and mail.
<pre>
[heth@bkshost bin]$ man ping
</pre>
Experiment with the commands until you know how they work. And make them work for you.<br/>
To test if [[ping]] failed or succeded you can use if
<pre>
if ping -c 1 192.168.142.1 >/dev/null
then echo "Ping succeded."
else echo "Ping Failed."
fi
</pre>

UNIX assignments

2009-02-12T14:46:55Z

Astifl:

UNIX assignments

2009-02-12T14:16:37Z

Astifl:

[[category:Linux]][[Category:UNIX]]
== Network management with ping ==
Write a bash script that will ping 192.168.142.1, mars.tekkom.dk, 172.16.4.77 '''once''' every minut. 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
*mail
*sleep
=== Getting started ===
Use the ''man'' pages for ping, write and mail.
<pre>
[heth@bkshost bin]$ man ping
</pre>
Experiment with the commands until you know how they work. And make them work for you.<br/>
To test if [[ping]] failed or succeded you can use if
<pre>
if ping -c 1 192.168.142.1 >/dev/null
then echo "Ping succeded."
else echo "Ping Failed.
fi
</pre>