Linuxers December 2003

linuxers@mm.ilug-bom.org.in

140 participants
179 discussions

RE: regexp query
by Parul.Mathur 11 Dec '03

11 Dec '03

----Devdas Bhagat <devdas(a)dvb.homelinux.org> chided on Thu, 11 Dec 2003--------- >Try this input: > Devdas Bhagat devdas(a)dvb.homelinux.org > Philip S Tellis philip(a)ncst.ernet.in > Parul Mathur parul.mathur(a)india.rsystems.com > Dr. Shahrukh K. R. Pavri sparvi(a)vsnl.com The spaces in between the names will break the code. Defeat accepted very gracefully. :-)) -Parul Mathur

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Electrical Engineers ?
by Virendra Rode 11 Dec '03

11 Dec '03

Hi there, Are there any electrical engineers in the house? If so, please contact me directly at vrode(a)socal.rr.com for further details. regards, Virendra

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RE [ILUG-BOM] : regexp query (Dr. Sharukh K. R. Pavri.)
by SHAD KAISAR 11 Dec '03

11 Dec '03

Try this awk command : Go to the dir where the file resdies and type the command at the prompt . awk '{ printf("%s %s\n",$1,$2); }' < orig_file > new_file Substitue orig_file with your file and the new_file with the name of new file you want. __________________________________ Do you Yahoo!? New Yahoo! Photos - easier uploading and sharing. http://photos.yahoo.com/

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RE: regexp query
by Parul.Mathur 11 Dec '03

11 Dec '03

Hi, If the names and addresses in your text file are separated by one or more tabs, you can try this on the *nix command line: cat <text-file-name> | expand | tr -s " " | cut -d ' ' -f1 > <another-text-file-name> If the names and addresses in your text file are separated by one or more spaces, you can even try this: cat <text-file-name> | tr -s " " | cut -d ' ' -f1 > <another-text-file-name> The first option will work in every case. -Parul Mathur -----Original Message----- From: "Dr. Sharukh K. R. Pavri." <spavri(a)vsnl.com> Subject: [ILUG-BOM] regexp query Date: Wed, 10 Dec 2003 18:00:26 +0530 I have a text file in the format Full name email@ddress It's a pretty long list of names and I want to remove all the email addresses from the file. I basically want to be left with a file with only the names of the persons, one on each line. I tried :s [a-z]\@[a-z] //g in vim but it did not work. It says E59: invalid charcter after \@ how can I do this ? thanks, Sharukh. -- Dr. Sharukh K. R. Pavri. Mumbai, India.

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porting a windows application to Linux
by Parul.Mathur 10 Dec '03

10 Dec '03

Hi, I am trying to port a large and complex application to Linux. I have identified two approaches by which this can be done. I was hoping to get advice on which is the best approach, as well as the pros and cons of each approach. The application consists of 2 layers: Layer 1 -------- * Written in ANSI C * Queries a proprietary database Layer 2 --------- * Consists of a GUI written entirely in MFC * End user uses this layer to communicate what search and retrieval he wants the Layer 1 to perform. * Some part of business logic is also mixed up in the GUI. - Many times the result set returned by Layer 1 is modified by Layer 2. - Occasionally the search string given by the end user is first modified in Layer 2 before being passed on to Layer 1. - Filters to queries are applied by Layer 2 code. There are two approaches that I have identified to do the porting: Option 1: Go the WINE way. -------------------------------------------------------- As expected, the ANSI C code of Layer 1 works perfectly within WINE. Not all parts of the GUI code of Layer 2 work in WINE. When a feature does not work, it does not mean that the problem is in its code. It could be in code which is some steps earlier. So I need to hunt and correct the errors by recoding the error producing code. The advantage is that perhaps this may be much lesser work than the second option. Option 2: Go the Qtk way. -------------------------------------------------------- I have studied a white paper on Qtk. As far as I can see, almost all the components in MFC have been re-coded by Qtk people so that they can be complied to run on GNU/Linux. My task therefore involves a. examining all the code modules b. separating the code which deals with MFC from the business logic code. c. replacing the MFC code by Qtk code (The business logic code can be pasted directly in Qtk. Right?) This is more work compared to Option 1 but there is one advantage. The same source code than can be recompiled for Mac and Unix versions also. Does anybody on this group have practical experience of working with either of the two alternatives? What approach would you recommend I follow? Thanks, Parul Mathur

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need advice on setting up file server
by Rahul Saxena 10 Dec '03

10 Dec '03

Hello there, I want to setup a File Server on the network at my dad's office. he has 10 computers ( win2k , win 98 ) they open MS office applications and Autocad files. People have suggested Samba, so thats the way i am going... I have more doubts, but no experience setting such stuff up. 1) how do i do backups ? as they work with MSWord and Autocad they dont have much data, but some stuff needs to be archived and a small amount is frequently changed. ( CD ? Tape ? ) 2) what sort of hardware is required for such a server ? any special hardware. ( Raid ? , what sort of Hard Disks ) 3) Any other points which i may have missed ? Networking Equipmet ? Looking forward to suggestions and tips. Thanks for reading. rahul

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Re: Linuxers Digest, Vol 8, Issue 13
by Shanat Krishnamurti 10 Dec '03

10 Dec '03

what the hell? why is this list being spammed?? who/where is the idiot businessforu(a)rediff.com ?? ban the spammer!!! below is the message.. ----------begin------------------------> Dear Mumbai Friends, Is there any one who is frustrated = from job , or who want to earn ... <---snip--------> ... I will personal= ly call them and provide the information of this company. This= is a very special deal for the people who stays in Mumbai. Go= d Bless U. Your Friend [For Things To Change You = Need To Change, For Thinks To Better You Need To Be Better.] 1. 3D"http://clients.rediff.com=/ ----------------------Message End-------------> i suggest kicking this idiot of the list or at least blocking any mail from it. :~| --------- to the gentoo users: ebuilds for freedesktop.org Xserver (formerly Keith Packard's Kdrive,are at http://dev.gentoo.org/~spyderous/overlay-freedesktop/ try it out, it is cool (but slow and crashes). also try Xouvert. another nice X11 implementation, no ebuilds tho, just tar files. i have not tried this yet tho. for more info on Xouvert, try slashdot -->http://developers.slashdot.org/article.pl?sid=03/12/09/069229&mode=thread&t… shanat T.T.G.P : The T.T.G.P Gentoo Project _____________________________________________________________ <a href="http://www.gamedev.net">GameDev.net Email Service</a> - "Plenty of 1's and 0's"

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Re: [ILUG-BOM] qmail - remote fails :((((
by Dilip M 10 Dec '03

10 Dec '03

ooopSS!! I got this figured out!! http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&oe=utf-8&selm=477fd355.0… Turns out that the problem was not qmail related. It was my iptables firewall script. When I flushed all the tables and set me default IMPUT policy to ACCEPT, telnet worked and the queue emptied. BUT NOW I DON'T THINK MY MAILSERVER IS SECURED :((( -DILIP.M On Wed, 10 Dec 2003 Dilip M wrote : >Hi Everything was working fine, immd remote mail delivery >stopped!! >================================= >[root@mail qmail]# more /var/log/qmail/current >@400000003fd7bad11d97a154 new msg 1469905 >@400000003fd7bad11d97c094 info msg 1469905: bytes 2842 from ><linuxers-bounces(a)mm.ilug-bom.org.in> qp > 32280 uid 501 >@400000003fd7bad11db58d7c starting delivery 14: msg 1469905 to >local bristolindia.com-dilipm@bristol >india.com >@400000003fd7bad11db5a8d4 status: local 1/10 remote 1/20 >@400000003fd7bad11e8938fc delivery 14: success: did_0+0+1/ >@400000003fd7bad11e89583c status: local 0/10 remote 1/20 >@400000003fd7bad11e8963f4 end msg 1469905 >@400000003fd7bae80657582c delivery 9: deferral: >Sorry,_I_wasn't_able_to_establish_an_SMTP_connection >._(#4.4.1)/ >@400000003fd7bae806577b54 status: local 0/10 remote 0/20 > >---------------------------------- > >What may be the cause ?? > >-Dilip > > >-- http://mm.ilug-bom.org.in/mailman/listinfo/linuxers

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qmail - remote fails :((((
by Dilip M 10 Dec '03

10 Dec '03

Hi Everything was working fine, immd remote mail delivery stopped!! ================================= [root@mail qmail]# more /var/log/qmail/current @400000003fd7bad11d97a154 new msg 1469905 @400000003fd7bad11d97c094 info msg 1469905: bytes 2842 from <linuxers-bounces(a)mm.ilug-bom.org.in> qp 32280 uid 501 @400000003fd7bad11db58d7c starting delivery 14: msg 1469905 to local bristolindia.com-dilipm@bristol india.com @400000003fd7bad11db5a8d4 status: local 1/10 remote 1/20 @400000003fd7bad11e8938fc delivery 14: success: did_0+0+1/ @400000003fd7bad11e89583c status: local 0/10 remote 1/20 @400000003fd7bad11e8963f4 end msg 1469905 @400000003fd7bae80657582c delivery 9: deferral: Sorry,_I_wasn't_able_to_establish_an_SMTP_connection ._(#4.4.1)/ @400000003fd7bae806577b54 status: local 0/10 remote 0/20 ---------------------------------- What may be the cause ?? -Dilip

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Cannot ping internet hosts
by Nikhil Joshi 10 Dec '03

10 Dec '03

Hi! it seems that my ISP ( LAN based internet ) has blocked pinging of internet hosts. I am unable to ping google,yahoo etc. I need it to check whether I am connected to internet. Is there any other way to check if I am connected to Internet ? Also how to find out the current IP address of my PC ? /sbin/ifconfig does give the IP address, but suppose I've to use it in a script, how do I get it ? I've written this small script to get the IP address : /sbin/ifconfig | grep inet | sed -n 1p | tr -s " " |cut -f3 -d " "|cut -f2 -d ":" Is there simpler way to do it ? Also ifconfig is unavailable for normal users, so the above script won't be useful for non-root users. Please guide, -- Nikhil Joshi http://nikhil.ne1.net

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Linuxers December 2003