I though this script would be useful but did not want to have to cut and paste a URL into a Web browser so I decided to eliminate that step.

This Python script is loosely based on their script but uses the Python urllib libraries to connect to Google Charts to generate a PNG image file which is subsequently displayed using pyGTK+ routines. #!/usr/bin/env python import sys import os import commands import re from optparse import OptionParser import urllib import urllib2 import pygtk pygtk.require('2.0') import gtk class DisplayGraph: def delete_event(self, widget, event, data=None):    return False def destroy(self, widget, data=None):    gtk.main_quit() def __init__(self):    self.window = gtk.Window(gtk.WINDOW_TOPLEVEL)    self.window.connect("delete_event", self.delete_event)    self.window.connect("destroy", self.destroy)    self.window.set_border_width(10)    self.window.set_position(gtk.WIN_POS_CENTER)    self.window.set_title("Disk Throughput")    pixbuf = gtk.gdk.pixbuf_new_from_file("/tmp/dd.png")    os.remove("/tmp/dd.png")    self.image = gtk.Image()    self.image.set_from_pixbuf(pixbuf)    self.image.show()    self.window.add(self.image)    self.window.show() def main(self):    gtk.main() class GoogleChart: def __init__(self):    self.gchart_url = "http://chart.apis.google.com/chart?"    self.gchart_type = "cht=bvs"    self.gchart_title = "&chtt="    self.gchart_data = "&chd=t:"    self.gchart_labels = "&chxl=0:|"    self.gchart_size = "&chs=400x250"    self.gchart_axis_labels = "&chxt=x,y,x,y"    self.gchart_axis_position = "&chxp=2,50|3,50"    self.gchart_bar_settings = "&chbh=30,15" def title(self,title):    self.gchart_title = self.gchart_title + title def write(self, data, labels, max_t):     self.gchart_data = self.gchart_data + data.rstrip(',')     self.gchart_labels = self.gchart_labels \       + labels + "2:|Block%20Size|3:|Mb/s"     self.gchart_axis_range = "&chxr=1,0," + str(max_t+10.0)     self.gchart_scaling = "&chds=0," + str(max_t+10.0)     self.gchart_url += self.gchart_type \       + self.gchart_title + self.gchart_size     self.gchart_url += self.gchart_bar_settings \       + self.gchart_data + self.gchart_labels     self.gchart_url += self.gchart_axis_labels \       + self.gchart_axis_position     self.gchart_url += self.gchart_axis_range \       + self.gchart_scaling    opener = urllib2.urlopen(self.gchart_url)    if opener.headers['content-type'] != 'image/png':       raise BadContentTypeException('Server responded' \          'with a content-type of %s' \          % opener.headers['content-type'])    open("/tmp/dd.png", 'wb').write(opener.read()) def get_disk_throughput(device, blocksize):    blocksize = str(blocksize) + 'k'    cmd = "dd if=/dev/zero of=%s bs=%s" % (device,blocksize)    output = commands.getoutput(cmd)    throughput = 0    unit = ""    for line in output.split('n'):       s = re.search(' copied,.*, (\S+) (\S+)$', line)       if s:          throughput = s.group(1)          unit = s.group(2)          break    return (throughput, unit) if __name__ == "__main__":    usage = "Usage: %prog options"    parser = OptionParser(usage=usage)    parser.add_option("-d", "--device", dest="device", \       help="Device to use. Disk data will be overwritten!")    (options, args) = parser.parse_args()    device = options.device    if not device:       parser.print_help()       sys.exit(1) ]]> http://blog.fpmurphy.com/2008/10/recent-article-on-red-hat-magazine-by.html/feed 0 http://blog.fpmurphy.com/2007/07/convert-date-timezone-in-apache-server-log.html http://blog.fpmurphy.com/2007/07/convert-date-timezone-in-apache-server-log.html#comments Fri, 06 Jul 2007 00:39:42 +0000 fpmurphy http://blog.fpmurphy.com/?p=433 http://blog.fpmurphy.com/2007/07/convert-date-timezone-in-apache-server-log.html/feed 0