Comments for Srijith Unplugged

Comment on Adding RedHat DVD as Repository by Rohan

Rohan — Fri, 03 Feb 2012 13:30:15 +0000

Great post dude!!! Thanks

Comment on Find Invisible Users In Gmail by Srijith R

Srijith R — Thu, 02 Feb 2012 16:30:15 +0000

I think there is something wrong with your perl installation or how you run it. If “use strict” is the only line which gives an issue. You can remove that line. Its not essential to run the code.

Comment on Simplest way to remove trailing zeros of decimal numbers by max4ever

max4ever — Thu, 02 Feb 2012 14:58:17 +0000

echo (float) “0.123000″; // ==> 0.123

Comment on Find Invisible Users In Gmail by Mangesh

Mangesh — Mon, 16 Jan 2012 06:17:03 +0000

I tried it so many times but following error occurs:-

“use” not allowed in expression at invi.pl line 2, at end of line
syntax error at invi.pl line 2, near “use strict”
BEGIN not safe after errors–compilation aborted at invi.pl line 4.

Comment on Display row number in Mysql Select Query by Ashok sharma

Ashok sharma — Wed, 11 Jan 2012 13:18:47 +0000

I want to display a table of various datas including a column of s.no. which should be continuous even if removed any data from the table.
Can you please tell me or this code will work for that?

Comment on Adding RedHat DVD as Repository by Bryan

Bryan — Fri, 06 Jan 2012 19:02:58 +0000

I followed these steps under Fedora 16 but kept getting the error “Cannot retrieve repository metadata (repomd.xml) for repository: updates. Please verify its path and try again.” I ended up renaming my other .repo files (i.e. mv fedore.repo fedore.repo.old) and then it worked. For some reason even though all the other repository definitions were disabled, yum was still trying to look them up on the Internet. (My Fedora PC didn’t have Internet access.)

Comment on Restoring the Grub after reinstalling Windows by Sam

Sam — Wed, 28 Dec 2011 14:57:26 +0000

The third method works really g8t for me..
I have latest version of Debian and Linux mint and installing Grub for mint is really a cake walk…cheers..

Comment on Service Engineer/System Administrator Interview Questions by Srijith R

Srijith R — Tue, 27 Dec 2011 20:58:52 +0000

Thanks Ken, I have made the changes to the post.

Comment on Service Engineer/System Administrator Interview Questions by Ken

Ken — Tue, 27 Dec 2011 20:49:15 +0000

Nice list.. However, a small oversight on question two. You need to use the ‘g’ option to remove ALL a’s, as that will only remove the first ‘a’ in each line of output, like this:

print those lines with PRINT in it.On printing remove all small a.
grep ‘PRINT’ < file | sed ‘s/a//g’

your post had this entry instead:
grep ‘PRINT’ < file | sed ‘s/a//’

Hope that helps

Comment on Find Invisible Users In Gmail by STeve

STeve — Mon, 05 Dec 2011 14:59:24 +0000

Well I dont think there is a “smart” way now to do this. The only way is by the “go off record” and ping method. This is kinda silly.

Anyway, the reason is.. when a person goes invisible google sets the presence info in its server (IQ format) with “invisible” attribute to true. But when it broadcasts the presence stanza it doesnt give out that info. It just gives whether the person is available or unavailable. and if available the status is also attached. (default and dnd (busy)).

Ive tried this. Ive created a java code using smack to listen to presence changes of my contacts. and when when a contact goes invisible I get the “unavailable” presence packet only. And this info is stored on the server and hence even if the user is offline the presence info is available. So the user is effectively offline when they are invisible.

But the google talk doc lies something. It says “when a user updates it presence the presence info is sent to all contacts “UNLESS” the user is invisible!! ”

I thought I could use this. But when I listened to the server it seem to send presence info all the time. So theres no way as of now.

But if someone can think outta the box we can crack this.