Linuxers March 2007

linuxers@mm.ilug-bom.org.in

83 participants
99 discussions

suggestions/improvements on script maintaining persistent net connection
by Rohit V Bhute 15 Mar '07

15 Mar '07

Hello. I've put together a few commands in a Perl script that does two things: 1. Tries to maintain a steady net connection (using PPPoE) 2. Resumes a download if it was interrupted because of a break in the net connection. I am attaching the script here; any suggestions to make it more robust and generalized would be helpful. The wrapping makes it harder to read though. <script> #!/usr/bin/perl -w use strict; # variables my $ppp0 = ''; my $pppd = ''; my $wget = ''; my $url = "http://ftp.science.nus.edu.sg/linux/ubuntu-ISO/edgy/ubuntu-6.10-alternate-a…"; my $iso = "/home/rohit/download/iso/ubuntu-6.10-alternate-amd64.iso"; while (1) { # check for ppp0 $ppp0 = `/sbin/ifconfig | /bin/grep ppp0`; if ($ppp0 =~ /^ppp0/) { # Connection exists. # if ppp0 was down earlier, maybe our download got interrupted? $wget = `/bin/ps cax | /bin/grep wget`; unless ($wget =~ /wget/) { system("/usr/bin/wget -q -c $url -O $iso &"); } next; } # check for pppd $pppd = `/bin/ps cax | /bin/grep pppd`; if ($pppd =~ /pppd/) { next; # pppd is trying to get ppp0 up!! } # uh oh! we need to kill pppd # and launch the connection again system ("/usr/bin/killall -9 pppd"); system ("/usr/bin/pon dsl-provider"); #print "\a"; # remove this if the script works!! system ("sleep 60"); # Wait for 60 seconds } # end of script </script> Feedback appreciated. -- Rohit V. Bhute http://blog.rvbhute.org

1 0

Linux survey for Dell notebooks and desktops
by Arun K. Khan 14 Mar '07

14 Mar '07

FWIW, Linux survey for Dell notebooks and desktops http://www.dell.com/linuxsurvey -- Arun K. Khan <knura(a)yahoo.com>

1 0

Re: [ILUG-BOM] Python Queries
by Sameer Niphadkar 14 Mar '07

14 Mar '07

On Wed, 14 Mar 2007 Nikhil Marathe wrote : >> >>1) How does one get the exact value of an element down a tree like say : >> <abc><xyz><pqr>100</pqr></xyz></abc> >> >> So in the above case say the value 100, though it could be a >>string >>as well. We require the exact value, not its representation >>in XML or >>ASCII value as explained by you in some books. > > >You could get the node's value and pass it to python's eval >function. Since eval returns the parsed python expression it will >give a logical return value like 100 as an int and abcd as a string > Rigth now we are importing minidom lib and trying to parse it by element names like : reflist = xmldoc.getElementsByTagName("pqr") #For the case above ref = reflist[0] Just as u mentioned..the node value. So do we need to pass reflist[0] i.e the 1st child here to the eval function ? Also could you please elaborate on this function. >>3) Is there any way in which one can change the tag names or >>incorporate new elements ? > > >I am not that familiar with minidom but you can always copy all the >nodes attributes and children and remove the node and add another. >You should check the python library reference for the >xml.dom.minidompackage. Thnx, yes we are going thru the mindom, but is there a method available in this case ? >4) We are thinking about using QT for creating our frontend, how does >>python integrate with it ? If you could suggest any other GUI >>Designer for python then it would be great. > > >Qt and Python have very good interoperability due to the PyQt >bindings. In addition the pyuic tool can convert the .ui files >generated by Qt Designer to Python code.Sorry I couldn't provide >links, but I am really sleepy right now :D > > Np, but we just need to bind our script with QT, so I guess we may only need PyQT..am I right ? Thnks a lot for all the pointers though. rgds Sameer 'You will be what you WILL to Be' -James Allen

1 0

Python Queries
by Sameer Niphadkar 14 Mar '07

14 Mar '07

Hi ppl, We are developing an open source project for fun as well as a for learning. To give you a brief idea of our project - its a client server application installer on XML as the repository and python is used for parsing and searching for elements. You may find the details here : http://code.google.com/p/ulair Now, though I went through the working and parsing of XML in various Python ref material, but I just had a few queries like : 1) How does one get the exact value of an element down a tree like say : <abc><xyz><pqr>100</pqr></xyz></abc> So in the above case say the value 100, though it could be a string as well. We require the exact value, not its representation in XML or ASCII value as explained by you in some books. 2) Is there any efficient way of searching for elements in a huge XML tree in python ? 3) Is there any way in which one can change the tag names or incorporate new elements ? 4) We are thinking about using QT for creating our frontend, how does python integrate with it ? If you could suggest any other GUI Designer for python then it would be great. I know some of these questions are ignorant. However it would be a great help if you could give us some insight by answering them or pointing us to some other refrences. If you would like to know anything more about our project then please do let me know. Thank you so much once again. rgds Sameer 'You will be what you WILL to Be' -James Allen

3 2

[OT] Need Info on Web Hosting Service Provider
by Joel A Divekar 14 Mar '07

14 Mar '07

Hi AllI have a perl application which is actively being developed and managed by me since 2001.This application is used many shipping firms and I sell this software at very nominal one time cost. I provide free update / upgrade and support for this software. I am doing this to give back to the shipping community, which at one point helped me to stand back on my feets.I am currently working for a software firm and have to travel extensively in India and outside India and it become difficult for me to provide onsite / telephonic support. To resolve this problem I am thinking of making this a webbased application.Here I need help on following queriesa) Can anybody guide me with reliable gnu/linux based web hosting service provider who can support     perl / php / ruby / python and template engine like Catalyst / Smarty / Ruby on Rail / Cheetah.     With DB like postgresql. Also note I have very limited budget to work with.   b) Can anybody suggest programming language & templating engine for faster development    and easy maintainancePlease I dont want this to be a flame war or something. And please do not provide damaging information about any service provider. I would like this thread to be very informative to me aswell as gnu/linux community Thanks.RegardsJoel+91 9867572484

2 1

[gratuitously OT][PATCH] Fix for problem in starting Limewire 4.12.11
by Mohan Nayaka 13 Mar '07

13 Mar '07

Hi all, I have GNU java 1.4.2 installed which Limewire 4.12.11 doesn't consider useful. I installed Sun's jre 1.5.0.11, but in my home directory. The startup scrip for Limewire couldn't handle this location. Hence this patch. I'm sending this patch to codepatch(a)lists.limewire.org too. --- runLime.sh 2007-03-13 23:27:04.000000000 +0530 +++ /home/neo/Limewire-clean/runLime.sh 2007-03-14 00:15:29.000000000+0530 @@ -23,6 +23,12 @@ look_for_java() { +# patch to look for java installed in home dir first + JAVA_EXEC_IN_HOME=$(find ~ -name "java") + JAVADIR=`echo $JAVA_EXEC_IN_HOME|sed -n 's/bin\/java//p'` + if look_for_javaImpl ; then + return 0 + fi JAVADIR=/usr/lib if look_for_javaImpl ; then return 0 @@ -35,22 +41,24 @@ if look_for_javaImpl ; then return 0 fi + +# try here too + JAVADIR=/usr + if look_for_javaImpl ; then + return 0 + fi return 1 } look_for_javaImpl() { - IFS=$'\n' - potential_java_dirs=(`ls -d1 "$JAVADIR"/j* | sort | tac`) - for D in "${potential_java_dirs[@]}"; do - if [[ -d "$D" && -x "$D/bin/java" ]]; then - JAVA_PROGRAM_DIR="$D/bin/" + if [ -x "$JAVADIR/bin/java" ]; then + JAVA_PROGRAM_DIR="$JAVADIR/bin/" echo $MSG2 $JAVA_PROGRAM_DIR if check_version ; then return 0 fi fi - done echo $MSG8 "${JAVADIR}/" $MSG9 ; echo $MSG4 return 1 } -- Never look up when dragons fly overhead.

1 0

is this foss?
by Kenneth Gonsalves 13 Mar '07

13 Mar '07

hi, an interesting discussion took place on IRC today regarding this: http://www.space-kerala.org/downloads/foss.pdf The question was, with regard to #2 on the list - software developed by keltron, is it foss or not? My contention is that the tools used are irrelevant. The software was paid for by the government, and developed by the government, all using our tax rupees. But there is no indication whether the source for the application is open or not, available to the users or not, modifiable, downloadable or redistributable or not. Therefore this is not f/oss as it goes against the fundamental notion that software should be freely available, downloadable, modifiable and redistributeable with or without modifications. I was further of the opinion that the authors of the PDF in question have tried to give an impression that free software is flourishing in the state. I am also suprised that Richard Stallman has lent his name to this - I am quite sure that he would have opposed the same thing tooth and nail if it had happened in the US or Europe. However the free software guru with whom I was debating seemed to thing that this did not fall under the definition of proprietary software. Opinions anyone? -- regards Kenneth Gonsalves Associate, NRC-FOSS lawgon(a)au-kbc.org http://nrcfosshelpline.in/web/

5 14

calendar of foss events
by Kenneth Gonsalves 13 Mar '07

13 Mar '07

hi, we have set up a calendar of foss events at http://nrcfosshelpline.in/web/calendar/ anyone interested in posting details/maintaining the page may contact me -- regards Kenneth Gonsalves Associate, NRC-FOSS lawgon(a)au-kbc.org http://nrcfosshelpline.in/web/

1 0

Slackware with ubuntu
by Mohan Nayaka 10 Mar '07

10 Mar '07

Hi all, Has anyone tried out Slackware with ubuntu on the same machine? I read that Slack uses lilo while I use grub with ubuntu now. Can a Slack installation coexist with this setup? googling suggests that skipping the lilo installation and then fixing up with grub will do it. I think I would have to use knoppix see what exact files it has put in /boot to figure out the right entries for kernel and initrd (if any). Is this right? Regards, Mohan S N -- Never look up when dragons fly overhead.

3 4

lost trash folder in kde
by Pradnyesh Sawant 09 Mar '07

09 Mar '07

hello, i, by mistake, deleted the trash folder in kde, residing in ~/Desktop/Trash. Although i have recreated the "folder", it does *not* act like the trash folder is supposed to -- deleted stuff doesn't end up there. i tried searching for "trash path" in the "control center", but in vain. googling around provided the path variable to reside in "control center -> system administration -> paths", but unfortunately in my case i can't find the "trash path" variable :( -- warm regards, Pradnyesh Sawant -- Man thrives, oddly enough, only in the presence of a challenging environment. --Anon

3 5

← Newer
1
2
3
4
5
6
7
8
9
10
Older →

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

2001

Linuxers March 2007