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Hi.,
I want to know amount of memory used by a process inside the same process. For example, I am writing a program and I want to know the memory used by it from the program. So, I could do some...

Dear friends,
Whenever I do logout from a session initiated by ssh/su, I need to print a small report which says the login time, logout time, commands got executed..
How can it be done?

I...

Dear friends,
How do I find the TCP send and receive buffer size?

Thanks...

Dear friends,
I am using Debian linux. I need to run a program whenever a user login to the system.
I want to know whether the user is attempting to login through X session or...

The question is simple that I need stop the user from giving input..

Dear friends,
I need to stop getting input from keyboard and mouse at some specific time like, every day from 6 PM to 7PM likewise.
How can I do this. Kindly guide me to do this.
I...

Dear friends,
kindly some one explain me the use of tcsetpgrp() function. I didn't understand it by reading man page.

Hi...,
I am using the getoptlong() function to handle the options.
For some options I am having the long option and for some other I don't want the long option.
So, what I have to...

what is NAT and masqueraded connections.

Hi..,
Now, I am reading about the netstat command and its implementation. I have doubts in some options and its functionalities,

natstat - M (Which is described as display masqueraded...

Dear all,
I am using select function for the socket programming. What is the purpose of except fd's fd set in the argument.

Dear all,
When I write the daemon programs it is consuming high memory and processor time. How can I avoid this?
But, the system daemons are not consuming more. How?
Can any...

Dear all,
I know the use of fprintf and typecasting. But, in the following function call what is the use? why that is type casted to void?

(void) fprintf(stderr, "Enter...

I am interested to read about the make. When I read the gnu documentation for make. I felt something complex in reading that url.
Can anyone have any referencing url's for make. Which should give...

Thank you.
Actually, When I disable the option to maintain the history nothing gets updated in the history.dat file.
So, Is that the only way.

Dear all,
I wants to log all the websites(URLs) that i am visiting for my future use.
How can i do this? Now, I am using firefox.
Can anyone help me?

You can execute the command crontab -e. The crontab file will be opened. There you can add that line (10 30 * * *).
There are some other options. -e to edit that file.

Hello,
In unix, the normal user can't create a hardlink for a directory. why..?
Is there any difference between creating a hard link for a file and directory?
The super user can create a hard...

Dear all,
I have a need to find the standard of my system such as POSIX.
How can I know that. Is there any way to find it.
I am using GNU/Linux.

I saw the man page .But it is not there.

Hello,
what is the maximum size of a file that we can open using vim.

why directory has two links as default.
what's the purpose?

i want to know what is the maximum file size supported by linux with ext3 file system.

How the unix is maintaining the password ?
How it does the encryption and how the passwords are stored in the system and where it is stored ?
How it is better when compared to other OS ?