Bandwidth monitoring using bwm-ng

small and simple console-based bandwidth monitor.Bandwidth Monitor NG is a small and simple console-based live bandwidth monitor. 

# sudo apt-get install bwm-ng

# bwm-ng

OR

# cd /usr/src      

# wget http://www.gropp.org/bwm-ng/bwm-ng-0.6.tar.gz

# tar zxvf bwm-ng-0.6.tar.gz

# cd bwm-ng-0.6

# ./configure && make && make install

Type bwm-ng -h and make sure you are able to see the command help menu.

* Network Monitoring using bwm-ng....
  # bwm-ng -u bits -d
  # bwm-ng -u bytes -d 

Options to see all the NIC status in bits and bytes and -d is for dynamic output which displays in the KB/s and MB/s dynamically.
 

 * Disk I/O monitoring using bwn-ng
    Monitoring disk I/O is pretty simple with bwn-ng

  # bwm-ng -u bytes  -i disk