No more mistakes with touch

The thorough and col- laborative open source approach to testing software and fixing software bugs increases the stability of Linux; it is not uncommon to find a Linux system that has been running contin- uously for months or even years without being turned off.Security, a vital concern for most …

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Instance names should not be specified when using at

Indeed, in the case of Linux-based cash registers, it would in all likelihood be a security risk to release the code to a wide audience. he Linux terminal is superior to use over Window's command line for developers. The API user (generally, the higher-level software) has zero input into the …

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Programming with Python on Ubuntu Kylin

The world economy will not collapse if creators of software choose to share their work with the world. Running a UNIX system is not an easy task, not even for commercial versions of UNIX. Open source software isn't free from cost, of course. Make use of this command often so …

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Understanding the fundamentals of gawk

Its vast package database and supportive community is another plus point. This means that if a system has two IDE controllers there will be entries for the IDE subsystem at indices at 3 and 22 in the blk_dev and blkdevs vectors. Most of the time you will be issuing commands …

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Can you recommend a Web browser for the Raspberry Pi?

The entire Linux kernel was written from scratch, without employing any code from proprietary sources. Instead of a simple binary check, capabilities allow the kernel to base access on much more fine-grained settings. The most popular include Perl, Python, PHP, and Tcl. If you can use a computer or other …

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Can you get Gnome to work on your own distro?

Linux moving into the mainstream is a great thing. Background processes that attempt to read from (write to) the terminal are sent a SIGTTIN (SIGTTOU) signal by the terminal driver, which, unless caught, suspends the process. Another excellent source for assistance (and encouragement) is a local Linux Users Group (LUG …

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Running Gnome on CentOS

A thread is the unit of activity within a process. This is also the reason serious Linux users prefer the command line. However, such programs are typically also made available for free (usually as a free download from the Internet). lsmod simply reformats /proc/modules which is built from the …

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How logname can help power your webapp

Slackware includes LILO and Loadlin for booting Slackware Linux. Instead, Linux aims toward compliance with two of the most important and prevalent standards: POSIX and the Single UNIX Specification (SUS). It is as old as computers themselves. When the systems running our voting is proprietary or closed, it means that …

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How to set up the Perl environment on Ubuntu

It may use the API as-is, or not use it at all: take it or leave it! The device identifier for /dev/hdb, the slave IDE drive on the primary IDE controller is (3,64). awk is actually a programming language designed particularly for text manipulation, but it is widely …

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Does it run under KDE on the Linux Mint distro?

If the kernel handles the signals, it will do the default actions required for this signal. The first method is most often the easiest, as long as your system UEFI boot manager allows you to disable the secure boot feature. The kernel allocates a new module data structure and enough …

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Getting started with systemd on Ubuntu

There are editors, compilers and interpreters for nearly every language ever created, debuggers, parser generators, you name it. What exactly do the kernel and the C library provide? Whereas it had previously been the norm to assist colleagues and freely share ideas and software, such cooperation suddenly became forbidden and …

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Linux CLI goodness with yum

The system itself is designed with a very open-ended, feature-minded approach. I moved on to larger applications and contributions. Other drivers can be loaded as kernel modules when they are needed. It would not be enough to stop here, though.

Get the most out of ClusterKnoppix

Developing the core is …

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Principles of rpcbind under Linux

In Linux, blocks are generally larger than the sector, but they must be smaller than the page size (the smallest unit addressable by the memory management unit, a hardware component) Common block sizes are 512 bytes, 1 kilobyte, and 4 kilobytes. Even so, most software developers, even those who have …

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Your favourite distribution

Most of the time you will be issuing commands. This is because IP addresses are simply an addressing concept, the ethernet devices themselves have their own physical addresses. Advocates of copyleft respond by pointing out that there is no such thing as absolute freedom. To see what is meant by …

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Which IDE is best for developing with Dart on the Rasberry Pi?

Its entries are also device_struct data structures. Copyright does not protect facts, discoveries, ideas, systems or methods of operation, although it can protect the way they are expressed. Remember that the shell is a program providing you with an interface to the Linux system. Binary compatibility is maintained across a …

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Minimize speed when using your first accepted version

Hard links allow for complex filesystem structures with multiple pathnames pointing to the same data. You may need to go through several rounds of resubmission and additional feedback before your code is accepted, and in some cases it may be rejected. Share your personal experiences (good and bad) with Linux …

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My experience with LiMux

They are accessed via block device files. Freedom not to have to pay $300 or $400 for making your computer even useful, for something other than a calculator. The application can then trap into the kernel through this well-defined mechanism and execute only code that the kernel allows it to …

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Get rid of declare once and for all

The default action for the SIGFPE signal will core dump the process and then cause it to exit. Any of the bytes within a file may be read from or written to. Through virtual memory and paging, the kernel allows many processes to coexist on the system, each operating in …

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Getting started with syslogd on Arch Linux

Unlike Windows, Linux requires each user to have an account. Linux keeps looking through the pending list from the start until there is a pass where no semaphore operations can be applied and so no more processes can be woken. Effectively, they define system programming, or at least a common …

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How easy is it to learn the xfsprogs utility?

Its own Software Center has tons of free applications that make it a great Linux OS for programming. Another good example is the PCI bus which allows each device (for example a graphics card) to be accessed independently. Apart from the ability of a loaded module to crash the operating …

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Does it run under KDE on the Linux Lite distro?

An alternative to purchasing a Linux book is to borrow one (or many) from a library; it is likely that some of them will also contain CDROMs that can be used to install Linux. And the vast profits being amassed by some of those corporations added to the frustration. Instead …

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Scan the results of parameter expansion

The new vm_area_struct structure is put into the list of vm_area_struct pointed at by the shmid_ds. Some such devices are partionable, which means that they can be divided up into multiple filesystems, all of which can be manipulated individually. Sustainable technologies are also important, and the best example of the …

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Let your Devil-Linux terminal speak its mind

It's a must try Linux distribution for those are willing to test the working of server on Desktop. But all things come to an end eventually. Much of enterprise IT's excitement is focused on advancements at the application level (and rightly so), but it's Linux that powers these innovations and …

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Getting a mail server up and running on Xubuntu

In addition to steadfast stalwarts like Fortran and C/C++, many scripting and other computer languages are at home on (or were even designed to work best with) Linux. The Linux kernel must be able to interact with them in standard ways. It is the scheduler that must select the …

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Getting acquainted with Miracle Linux

The module data structure is marked as DELETED and it is unlinked from the list of kernel modules. Most licenses of the proprietary software systems are expensive and should be renewed every year. These range from simple memory protection schemes to complex page hierarchies. You don't need to spend tons …

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Getting the best out of atq when using Ubuntu

Therefore Linux adds a call to a tidy up routine which will restore the original blocked mask onto the call stack of the signalled process. If your computer came with a copy of Windows, then you paid for it, even if the store didn't tell you about that. This credit-card …

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No more mistakes with dnssec-keygen

If the name doesn't give it away, Linux containers, a method of packaging and isolating an application with only its dependencies, are a technology built from key pieces of the Linux kernel. Still, this survey does compare Windows 2000, GNU/Linux (up to 497 days usually), FreeBSD, and several other …

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Configuration via the terminal

Workspaces is a feature I would never trade for anything else. Not only you earn more capabilities as a developer, you also learn (sometimes the hard way) how to solve issues, monitor your machine for potential problems, configure different components and more. Putting morals before convenience and ease may be …

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Editing with vi and esdcat

Copyleft advocates also point out that although code released under the GLP cannot be incorporated directly into proprietary software that does not make its full source code freely available, it is still possible to use it effectively with proprietary code. If the substring matches more than one job, bash reports …

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A technical overview of edquota

If you have spent a lot of time on Windows this may take a while to get used to. The source code for proprietary software is usually not made publicly available, or, if it is, there are generally severe restrictions on its use. This means that the maximum number of …

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A simple guide to ld

You can customize the terminal, try different text editors, and install desktop environment of your choice. The results of such concurrent accesses rely on the ordering of the individual operations, and are generally unpredictable. Writing a byte to the middle of a file overwrites the byte previously located at that …

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Whats the need for syslogd in this day and age?

Resources include timers, pending signals, open files, network connections, hardware, and IPC mechanisms. Originally, gcc was GNU's version of cc, the C Compiler. What would happen if ACME went out of business or stopped supporting the software due to lack of sales? Collectively the memory space that the hardware peripherals …

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Text Processing and Manipulation

Sections are linear chunks of the object code that load into linear chunks of memory. The size of a file is measured in bytes and is called its length. Actually, it is often far less expensive to purchase a computer just for studying Linux than it is to pay the …

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Identify provide font files

For block (disk) and character devices, these device special files are created by the mknod command and they describe the device using major and minor device numbers. The originator of the request, the client, creates a socket and makes a connection request on it, specifying the target address of the …

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Linux adventures with amixer

Even so, most software developers, even those who have grown up during this venerable "Linux revolution" have at least heard of Unix. While early drones relied on proprietary operating systems, the boom in drone flight is helped onward by Linux, which provides the tiny embedded operating systems necessary to run …

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Determine hardware resources for devices

Python has always touted itself as a "batteries included" language; its standard library contains lots of useful modules, often more than enough to solve many types of problems quickly. To understand what OSS is, you must first understand how source code is used to create programs. In all cases, bash …

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Installing a web server under Moblin

Free software, as the term is usually used, and public domain software resemble each other in that both are usually free both in a monetary sense and with regard to use. Assuming that a module can be unloaded, its cleanup routine is called to allow it to free up the …

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Generating use cases for Haskell

There are various other shell interpreters available, such as Korn shell, C shell and more. The first method is most often the easiest, as long as your system UEFI boot manager allows you to disable the secure boot feature. For the operating system to accomplish this, it must contain the …

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