NetRate

Nice script but i got an error wiht the \ at the end of some lines (121)..

Therefor this is the script with those lines joined:

cat bin/netrate.pl
#!/usr/bin/python

1. netrate - a program to "graphically" show on a linux console
2. the transfer rate on each interface
3. also tested on rxvt

1. it will display the transfer rate for the last second (coming soon),
2. and the transfer rate for the last SECONDS seconds.

NUM_SAMPLES=5 # number of samples per second
NUM_SECONDS=5 # number of seconds
MIN_RATE=1024.0 # max_rate does not go below this value

1. terminal settings
   TERM_HOME='\x1b[H'
   TERM_CLR_EOL='\x1b[K'
   TERM_CLR_SCREEN='\x1b[J'
   TERM_IN_COLOR='\x1b[41m' # red
   TERM_OUT_COLOR='\x1b[42m' # green
   TERM_NORMAL_COLOR='\x1b[m' # no attributes

TERM_WIDTH=80

from string import split
from time import time,sleep
from sys import stdin,stdout,argv,exit
from getopt import getopt

1. help
   def help():
   print "Usage:\n\t%s -h\n"%argv0
   print "\t%s -w width -s seconds -n num_samples\n"%argv0
   exit()

1. main
   options,junk=getopt(argv1,"hw:s:n:")
   del junk
   for i in options:
   if(i0=='-h'):
   help()
   if(i0=='-w'):
   try:
   TERM_WIDTH=int(i1)
   except:
   help()
   if(i0=='-s'):
   try:
   NUM_SECONDS=int(i1)
   except:
   help()
   if(i0=='-n'):
   try:
   NUM_SAMPLES=int(i1)
   except:
   help()
   del options

delay=1.0/NUM_SAMPLES

statfile=open('/proc/net/dev','r')

1. first get the current status...
   tmp=statfile.readlines()
   statfile.close()
   del statfile
   tmp=tmp2
   num_interfaces=len(tmp)
   interfaces=0,*num_interfaces
   initial_in=[]
   initial_out=[]
   max_rate=MIN_RATE

for i in range(num_interfaces):
interfacesi=split(tmpi6)0
initial_in.append(float(tokens0))
initial_out.append(float(tokens8))

total=NUM_SAMPLES*NUM_SECONDS
times=time()-1.0*total
in_values=[]
out_values=[]

for i in range(total):
in_values.append(initial_inNetRate*num_interfaces)
out_values.append(initial_outNetRate*num_interfaces)

del initial_in,initial_out

current=0
last=1

1. print samples0101
2. print interfaces

1. I keep a circular buffer, so samplescurrent is the current sample, and
2. sampleslast is the earliest sample, which will be overwritten next time

stdout.write(TERM_HOME+TERM_CLR_SCREEN)

while 1:
statfile=open('/proc/net/dev')
tmp=statfile.readlines()
tmp=tmp2
statfile.close()

timescurrent=time()
for i in range(num_interfaces):
tokens=split(tmpi7)
in_valuescurrenti=float(tokens0)
out_valuescurrenti=float(tokens8)

sleep(delay)
stdout.write(TERM_HOME)

stdout.write('Max Rate: %10.2f\n'%max_rate)
for i in range(num_interfaces):
time_diff=(timescurrent-timeslast) * 1024.0
stdout.write('%-10s: in:%10.2f kb/sec out:%10.2f kb/sec' %(interfacesi, (in_valuescurrenti-in_valueslasti)/time_diff, (out_valuescurrenti-out_valueslasti)/time_diff))
stdout.write(TERM_CLR_EOL+'\n')
in_rate=(in_valuescurrenti-in_valueslasti)/time_diff
out_rate=(out_valuescurrenti-out_valueslasti)/time_diff
max_rate=max(in_rate,out_rate,max_rate)
stdout.write(TERM_IN_COLOR+(' '*int(TERM_WIDTH*in_rate/max_rate)) TERM_NORMAL_COLOR+TERM_CLR_EOL'\n')
stdout.write(TERM_OUT_COLOR+(' '*int(TERM_WIDTH*out_rate/max_rate)) TERM_NORMAL_COLOR+TERM_CLR_EOL'\n')
stdout.flush()
current=current+1
last=last+1
if(current==total):
current=0
max_rate=max(max_rate*0.90,MIN_RATE)
else:
if(last==total):
last=0