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Thanks for you suggestions everyone. I ended up using your last one Jean-Pierre and though it is not exactly what I was looking for it helped me do what I want.

Jean-Pierre, I really appreciate your help. What you've suggested is very close to what I am trying to achiveve with one difference only: the input is displayed only after return hit and I want it to...

OK. Excuse me for my messed-up terminology, I'm still a beginner.
Would you mind telling me than how can I make a script that reads from stdin closes stdin when CTRL+D is entered and outputs what...

@Glenn Arndt
I am using bash and I looked through the trap sigspecs and couldn't find which signal corresponds to CTRL+D.

@aigles
I've tried the loop you suggested but the problem is that it...

Hi,

I'm trying to make a script that reads the console input and terminates with CTRL+D. It's absolutely basic but I don't know how to "read" the CTRL+D. I've tried a bunch of things like

...

Hello, blowtorch.

I am compiling this with gcc 3.2 on Slackware and it didn't show any errors.
Not that I have any experience with debugging under Linux but that's rather strange. I've just...

No particular reason. I just thought it would be a useful thing for me to do because I'm a beginner and I can learn something interesting like this.
Whatever...

Hi,

I tried creating my version of the cat function in bash but left it and now I'm trying to make this function work, but it wouldn't.


#include <sys/param.h>
#include <sys/stat.h>
...

I think I am giving that up. I started a C implementation of the cat and it is much easier to implement.

Hello,

A few days ago I created my amateur version of the cat function in bash. Here is what I've done:


#!/bin/bash
#This is mycat. Similar to cat.
#For detailed information use...

I just tried it out and realized this is not what I want to do. The -o option speciefies the file in which to place the output. What I was looking for is the following:

#include <stdio.h>...

Thank you, Hitori. It is the first time I'm using gcc and I looked through some of the info and manual but couldn't find what I was looking for.

Hi,

I am trying to compile a .c file but in the pre-processor directives I want to include a file that I have put together myself (#include "file.h"). How can I accomplish this?

Ygor and mahendramahendr your suggestions work fine. I'm trying to implement your one Ygor but I'm printing two colums at the same time and it strips off the first one entirely. This is the ouput and...

Hi,

I have the following problem. I want to extract only the numbers from a column with output like this one:

*:bootpc
*:ssh
192.168.0.90:42904->192.168.0.3:jabber-client...

Thanks for the information, guys.

Does anyone know what the microprograms behind cat (and other commands) are like? In what language are those programs designed? Is their source available somewhere?
No particular reason, just...

I finally managed to solve. I used the uniq command with its -f property and now with lsof -i | uniq -f 7 the lines with the threads are deleted. Thanks to everyone who helped.

OK, what I get now is a table like the one above generated from netstat -tuv | lsof -i and I need to remove any repeated lines that start with the same process. This would solve my problem. In this...

What I have now (after removing the duplicating threads) is this:


And what I would like to have in the end is something that looks like this:

Your suggestion works out fine, vish. Thank you. I used the one provided by Ygor but I had to pipe all the commands on one line to get what I wanted. Now I have a slightly different problem with the...

Changing NR==2 causes only one line of output to be displayed for the whole lsof -i<ports.list and what I would like to do is to have the first line of every output.

head -1 seems to cut all of the output lines.
Here is what I have as output:

dhcpcd #corresponds to first output
sshd #correspond to sencond output
psi #corresponds to third output
psi #third...

Hello,

I'm still a beginner at this so I hope someone would explain this basic stuff to me. I have the following function:


showProcesses()
{
netstat -atuv | awk '{print $4}' > ports.list...

Thanks once again. I realised that I don't need the awk thing and removed it myself but I wasn't aware that the file was unnecessary too. I will remove it- it is a serious optimisation.