Questions about programming for and on Ubuntu.

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12
votes
3answers
12k views

Is there an easy way to log all activity that a shell script does?

Is there an easy way to log all activity that occurs from a shell script to a file? I have a script. It outputs things like echo "instructions", as well as other program output. I know the commands: ...
0
votes
2answers
379 views

How to encrypt or protect folder with password in ubuntu 14.04

I am looking for encrypting or protecting my folder with a password. I found some programs, but they are not enough. I need a way to protect folder with password, so whenever I access the folder it ...
0
votes
0answers
53 views

Would there be any disadvantages to using Pyglet for GUI programming?

On Linux systems (such as Ubuntu), would it present a problem to program a GUI (for a media player) using OpenGL? I don't like WXPython b/c it's ugly as poop and PyQt requires a license when being ...
0
votes
1answer
145 views

Streaming a raw data bytes by byte into gstreamer pipeline

I have a problem that a gstreamer pipeline which has to take raw data byte by byte into pipeline, and it has to played. I have used appsrc to stream a data chunk by chunk into pipeline but it is not ...
2
votes
1answer
311 views

How to multiply negative numbers in bash

This is my script for multiplying negative numbers #!/bin/bash p="1" h="-10" z=$(echo "(($p)*($h)+2"| bc -l) echo $p $h $z and this is the result (standard_in) 2: syntax error 1 -10 how to ...
0
votes
0answers
89 views

How do I install Game Maker

I went to a page that claimed to have sucessfully installed Gamemaker ( the old version 8.1 legacy program by Mark Overmarrs. However despite doing the following (after first seeing if WINE would do ...
0
votes
0answers
41 views

Is it acceptable code style to leave binding loops in QML applications?

Backstory: I am working on a patch for the ubuntu-filemanager-app that will shrink the fontSize: for a Label {}, if the width: is larger than the window size. Think this: Label { id: myLabel ...
1
vote
0answers
112 views

What are the advantages of using GTK3 and GTK+3 over GTK-2?

I'm creating a utility program for Ubuntu in Python using GTK-2 and have been told by several people to use GTK3. Why would I want to do so, and would are the advantages of using it instead of GTK-2?
0
votes
1answer
81 views

Which system monitors are able to show me a non-rounded memory usage?

Backstory: I am trying to detect memory leaks in a program by viewing the memory used from the system monitor, and seeing if it rises while doing a certain activity. System Monitor unfortunately ...
3
votes
1answer
892 views

What is the logical mistake in this code?

I have written some code for downloading favicons. It has a logical error which I am not able to see. #!/bin/bash ico="1"; if [[ $ico =~ ^-?[0-9]+$ ]]; then wget -P $HOME/Downloads/ http://www.google....
-1
votes
2answers
75 views

Strange behaviors in adding integers from Python script [closed]

This python script is adding the sums of the numbers entered in a single line delimited by space except that it is not adding correctly. Thanks in advance. Print "Enter Numbers:" list=raw_input()....
-1
votes
1answer
45 views

first in c++ program don't compile and execute [closed]

#include<iostream> using namespace std; int main() { cout << " hello world !! good job nothing & something" << "\n" ; cout << " i jitendra singh in ...
0
votes
1answer
179 views

Using in-house programs in C++ with a DLL library in Ubuntu

I have a number of in-house programs coded in C++ using microsoft visual studio and a microsoft .dll librairy. I'm serching for a way to use those programs in Ubuntu without having to change all the ...
0
votes
2answers
45 views

New program development - need help

I would like to develop a new program for Ubuntu that will monitor the user's activity ,If user frequently uses a particular software "X" in certain time (like 8:00 A.M - 10:00 A.M ) ,when the time ...
0
votes
1answer
2k views

Visual Studio alternative for Ubuntu? [duplicate]

I write programs in Windows casually (apps like notepad, web-browser etc.). But I don't see a good alternative available. I have used Mono but it is not one bit like Visual Studio. I am having a tough ...
4
votes
3answers
9k views

Do we have to install Python or It is already installed in Ubuntu 14.04LTS?

I need it for learning Python language. Please Help!
2
votes
0answers
110 views

Two webcams of the same model are not working

I've been developing a dual webcam system for stereoscopic purposes, in a linux enviroment, using c++ with the opencv library The ideal setup would be with 2 webcams of the same model, but it didn't ...
0
votes
1answer
55 views

How to maintain a counter across multiple executions of a script?

I have a script with a conditional statement and I want to find out how many times the then clause is executed, across multiple runs of the same script. eg: if [condition] then Some code; ...
2
votes
1answer
202 views

How to get gnome session idle time?

Has the method to get the session idle time through dbus changed in the recent Ubuntu or my dbus code here is wrong? #!/usr/bin/env python import dbus bus_name = 'org.gnome.ScreenSaver' obj_path = '...
4
votes
3answers
3k views

How I can monitor new files in a directory and move/rename them into another directory?

A program generates output textfiles, named output.txt, after every 15th iteration of a certain process. Doing so, it overwrites the last output.txt. I want to keep the files however, and I can't ...
3
votes
1answer
34 views

Store in environment variable

I tried storing the contents of a file in an environment variable using one of those commands. a= cut -f 1 abc.txt cut -f 1 abc.txt >a neither works . So , can anybody help me out?
1
vote
1answer
212 views

How to show Aptana Studio 3 in the “Open with” list?

I've downloaded Aptana Studio 3 from their site and installed it successfully. Now it is showing in the Dash search. Problem is that, when I right click on any file (i.e HTML, CSS, PHP etc.), the ...
1
vote
1answer
106 views

Ubuntu Phone - detect system type Desktop or Mobile

Is there a way to detect platform from QML or Qt C++ classes? I have Qt/QML project supplied to Linux/Android/Windows at one time, I see it's possible to deploy it to Ubuntu Phone. Is there a way to ...
0
votes
1answer
81 views

Recommended Languages to Learn Linux [closed]

This is a very common question i might be asking, but I have not come through a clear cut answer yet. I want to be a fully Linux Developer, (BOTH Backend/Coder and GUI). Which programming Languages ...
2
votes
1answer
162 views

Installing a program on a ubuntu touch phone

I searched on the website but didn't found an answer. I heard a lot that developing an application with C, C++ or anything else. Is it really possible ? What I mean : Imagine I develop a program in ...
0
votes
1answer
84 views

How to make geany or vi understand Maxima (or any other less known) syntax

I tend to program a lot in a symbolic language called Maxima, but I haven't found any editor that highlights its syntax. Is there I way I can make vi or geany (or whatever) understand this syntax and ...
1
vote
2answers
2k views

GCC Fatal Error

everyone Here's my problem; So, I'm new to Ubuntu and programming and I just wanted to start with C. I created the classic "hello.c" file #include <stdio.h> main () { printf("Hello ...
0
votes
2answers
170 views

Installation with wine error

I downloaded vds 6.0 (a script type programming language for windows OS's) and now I am trying to install it in ubuntu 14.04. I looked at wine app database and I found that vds 6 works on wine. Here ...
1
vote
0answers
70 views

I can't log back in my Ubuntu account after logging out (I have a cromebook acer C720)

I have installed ubuntu on my crome book (acer C720) and when I was updating something I dicided to log out (I usually hit shut down and I would be able to get back in) and now I can't get back in.
1
vote
1answer
2k views

How to run C program on 14.04?

I'm trying to run some C programs using Geany and Code::Blocks. After coding them, when I run them, a message is showed in the terminal like this: In Code::Blocks: sh: 1: /home/c program files/2: ...
4
votes
5answers
884 views

How can I run a program and watch its activity using top?

I have a small program which I compiled myself. It’s CPU intensive, so I want to watch the CPU usage when it’s working. However, when I run ./myprog, I can’t run top immediately and sequentially.
1
vote
1answer
93 views

Catch program crash when there is no terminal

This question may belong to Unix/Linux in general, but I guess the answer is dependent on distro or desktop environment [I use KDE and Xfce so I would like an answer that is applicable on booth]. ...
0
votes
0answers
26 views

Programming in Linux [duplicate]

so I've never used Linux as a programmer I code C++ in Windows(I am newbie) and today I installed Code::Blocks.I opened some of my projects from Windows but Code::Blocks can't include some of the ...
0
votes
1answer
90 views

Is there any application which interacts with the user? [closed]

I'm very comfortable while using Linux or Lubuntu although Windows seemed a little faster but it hangs at a certain point. So I would like to thank all the programmers of Linux I really liked it .. I'...
0
votes
1answer
126 views

How do i write a terminal script to setup ubuntu for me instead of spending days every time?

From what I understand I can make a text file with all commands same as I would type in terminal, make it executable and run it. Would running sudo mysetup.sh or mysetup.txt be OK so not typing PW ...
1
vote
3answers
42k views

What is the best editor for HTML, CSS etc? [duplicate]

in Windows I'm using Komodo & Notepad++ for coding HTML, CSS etc. In Ubuntu, what's the best editor I can use? Thanks :)
0
votes
1answer
21 views

Loading Session Applications

How does Ubuntu Load previously opened applications on startup? (I want to code and modify that functionality present in the system preferences manually )
0
votes
1answer
42 views

How can I delete menus in Glade?

I'm writing a program using Quickly and I can't figure out how to delete menu bar entries.
1
vote
3answers
889 views

Start a programs in terminal only by name

I'm new to the Linux environment and I noticed there are many programs of which we can use only the program name to start them in the Linux terminal. E.g. gedit, vi, firefox Instead of providing ...
1
vote
1answer
147 views

Where are the headers with IOCTL numbers for ext4?

I am looking for ext4.h, or another file that contains EXT4_IOC_*. There is nothing in /usr/include or /usr/src. I have linux-headers-generic installed. I am on Kubuntu 14.10. Where are the headers? ...
-1
votes
1answer
109 views

What programming language would be ideal for making a note taking app for Ubuntu in which you use a wacom digitizer app? [closed]

I have some, but not much experience in programming, so I decided that now that I will have some spare time, I'll choose one language and try to master it to a level. I am not sure which language ...
0
votes
1answer
2k views

OSError: [Errno 101] Network is unreachable

When doing a network broadcast from Python, I get this: OSError: [Errno 101] Network is unreachable My code is as follows: def send(ip, message): sock = socket.socket(socket.AF_INET, socket....
1
vote
0answers
111 views

How do I bundle a python interpreter in my qml app?

How do I bundle a python interpreter in my qml app? I can not use the system's python interpreter due to the nature of Ubuntu’s new Click Packages, and App-Armour. How do I do this?
1
vote
2answers
68 views

No editors installed to fix sources list

I 'm in Ubuntu 12.04 but I'm using it with crouton in a Chromebook, the terminal emulator it uses is UXTerm but it seems that it doesn't have any editor installed - gedit, nano and pico are all absent....
-1
votes
1answer
1k views

Is Ubuntu a good Linux OS for php developer? [closed]

I want to switch from Windows OS to Linux OS for developing in Php. I can't decide which Os is perfect for me. Please suggest me. Is Ubuntu a good choice for a Php developer? What are the pros and ...
2
votes
1answer
244 views

Ubuntu Touch App with Simple UI (QMake) - how to connect C++ to QML

I've noticed that the Ubuntu SDK now has a template for an 'App with Simple UI (QMake)'. This creates a C++ Ubuntu application project with a sample UI containing a Label and a Button (Needs a 15.04 ...
1
vote
3answers
3k views

Is Gedit-3.14.2 available for ubuntu?

From where I will get gedit latest version? Current I have 3.10.4 installed on my Ubuntu version 14.10. Do we have any ppa available to download latest gedit?
0
votes
1answer
116 views

How do I write perl code for following example? [closed]

I have file content like this: aaa accounting exec ... aaa accounting exec ... aaa accounting commands .. aaa accounting commands .. aaa accounting commands .. aaa accounting commands .. aaa ...
0
votes
1answer
294 views

Cobalt theme for Geany?

Is there any cobalt theme available for Geany Editor just like Gedit cobalt theme? Also how to install these themes. Is there any way we can create our own theme for these types of editors?