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how do i get current bandwidth usage via shell script?

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# 1  
Old 05-25-2008
how do i get current bandwidth usage via shell script?
hello unix-people.

can u please tell me how i can get the current bandwidth usage of my machine on shell into variables?

thanks a lot
# 2  
Old 05-25-2008
i now tried this
Code:
iptraf -g -t 1 > /tmp/somefile

after that i have the screen output of iptraf in that file and it looks like this
Code:
0.00 kbits/sec 153.80 kbits/sec Elapsed time: 0:00 2323443535515177707081814455919133204204556677121299222233414122585865657777888080119393235.4445530130122131344353566575799636399707082823344556691914034031616252566424299545416.2996060727233448080119292335115115528284040229950506262334455667772723384846036031866222230302299414152523344556060117272339944710710882020119931314242334455667790.45353446565668585808099181821212234345566774242515144696976768383999990190133208.0441155282899303066774646575765656685859995956610021002441515667723233535168.8484855557775759982823399909010210233445577881010116677282899445050113375756688848455979799214.4200200117788191920204141226161557474558787889990901166773083089930304646545455636344767636778899848455949455413413443232774343505011636355667788997575668787885065061010262634346641414455575768899606055777788818188601601771313282831314466484899505011223344997070111418282939370970917179920206677404011223366778851514477646499707093934481081077992424663737213.81 [5

i can extract the value from there,

but is there a more elegant way to achieve my goal?

thanks m8s
# 3  
Old 05-25-2008
okay guys,
i finally made it:
Code:
bw=`iptraf -g -t 1 | sed 's/[^a-z0-9 ]/\n/g'`
bw=`expr "x$bw" : 'x\(.*\)kbit' | sed -e '$!{h;d;}' -e x`
bw=`echo $bw | sed 's/[ ]//g'`
echo $bw

it now gives me back the bandwidth utilization

but i am sure someone has a better solution.

please help me out or comment on my script.

thanks people!
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