X server (init 5) startup issues after deploying NVIDIA graphics driver You may end up breaking your Linux system’s graphics console (x session start up) after you deploy NVIDIA drivers. If you have a look at your X server log you will notice the following. I had faced the same problem and I was able …
Understanding performance bottlenecks and fine-tuning them in a Linux system: The first thing you must know in performance fine-tuning or Linux performance monitoring is the contributors. What resources contribute to the performance of applications? If your are looking for system level performance fine-tuning, incase your server / PC is slow, this atricle still will help …
c99 – compile standard C programs 1. The following usage example compiles foo.c and creates the executable file foo: c99 -o foo foo.c The following usage example compiles foo.c and creates the object file foo.o: c99 -c foo.c The following usage example compiles foo.c and creates the executable file a.out: c99 foo.c The following usage …
Master your skills in Linux bash shell Bash shell provides a lot of keyboard shortcuts for various purposes such as: Command line editing shortcuts Command recall shortcuts Command Control shortcuts Knowing shortcuts will definitely save a lot of your time and improves your skills. The following bash shortcuts cheat sheet is exclusively designed for you. …
Setting up recordmydesktop on Linux I had a lot of troubles installing recordmydesktop on CentOS7. There was never-ending dependency chain. Most of the dependencies were not part of CentOS default repos. I had to download few packages manually and install few via yum. Finally, I could successfully install recordmydesktop. Follow the below article, hope this …
How to setup persistent environment variables in Linux shell? We often need to set environment variables in Linux shells. If we just “export” them on the shell, they disappear in next session. In order to set them permanently follow this article. Setting up temporary environment variables that are valid for a single session. In this …
How to configure passwordless ssh or SCP in Linux (UNIX) A passwordless authentication is required in many cases. 1. To run parallel applications (MPI) in cluster computing. In case of MPI applications, the parallel tasks should be able to communicate with each other without the need for a password. Since there would be few hundred …
Team Viewer Installation fails on CentOS 7. Following is the resolution. I wanted to setup TeamViewer 13.1 on CentOS 7.4 and it failed with following dependency list. I had to spend 1 hour to resolve never-ending dependency chain. Finally, I could do it. Now, it is simple. You can setup (install) teamviewer13.1 on CentOS 7.x …
The following is the complete list of Linux signals with signal numbers and signal names. Signals in Linux are used for IPC (Inter Process Communication). They are generally used to notify an event to the process or a process thread in the same group. Signal Number Signal Name 1 SIGHUP 2 SIGINT 3 SIGQUIT 4 …
strace – trace system calls and signals In the simplest case, strace runs the specified command until it exits. It intercepts and records the system calls which are called by a process and the signals which are received by a process. The name of each system call, its arguments and its return value are printed …