20 lines
573 B
Bash
Executable File
20 lines
573 B
Bash
Executable File
#!/bin/bash
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# Author: Kun Huang <academicgareth@gmail.com>
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dev=${1:-eth0}
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packages=`cat /sys/class/net/$dev/statistics/rx_packets `
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bytes=`cat /sys/class/net/$dev/statistics/rx_bytes `
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interval=3
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trap 'break' INT
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while [ 1 -eq 1 ] ; do
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sleep $interval
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n_packages=`cat /sys/class/net/$dev/statistics/rx_packets `
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n_bytes=`cat /sys/class/net/$dev/statistics/rx_bytes `
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python -c "print '%0.2f pkt/s %0.2f byte/s' % ((float($n_packages-$packages)/int($interval), (float($n_bytes-$bytes)/int($interval))))"
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packages=$n_packages
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bytes=$n_bytes
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done
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