Convert Epoch to Human Readable Date & Time program in C language

-
Whenever we want to get a date and time from system in Linux, we use time system call which returns the time as the number of seconds since the Epoch, 1970-01-01 00:00:00 +0000 (UTC). In order to convert these seconds to human readable format we can make use of ctime system call as given in below program,

Comments

Post a Comment

Popular posts from this blog

MBR partitioning with 'parted' utility

-
Image
As you might know, linux provides a very handy utility i.e. parted to create, destroy, resize, move and copy(and much more) partitions. So, in this post I will explain how parted is used to create partitions for MBR scheme. Let's commence with some pre-requisites, Machine running linux to perform operations Any storage device like HDD, USB etc. on which we will perform various operations I am using USB stick for this purpose and will carry out all operations on that. I strongly recommend you to use a external disk which doesn't have any important data and if it has, you must take backup before performing any of the following operations. If you do not have much idea about MBR partitioning schemes, Please refer this post first to get basic understanding of disk partitioning. NOTE: You need to have root permission to carry out all the following operations. First thing we do here is to check what's there inside the storage disk. We insert USB drive t
Read more

Disk Partitioning: MBR vs GPT

-
Image
What is disk partitioning? Disk Partitioning is a process of creating different regions or blocks, commonly referred as partitions of mass storage devices like fixed disks and removable disks. Why disk partitioning is required? The whole purpose of Disk Partitioning is to let Operating System(OS) manage information/data in each region/partition separately. There are two different disk partitioning schemes as follows: MBR (Master Boot Record) GPT (GUID Partition Table) MBR (Master Boot Record) MBR is a special type of boot sector resides in partitioned mass storage device. The concept of MBR was publicly introduced in 1983 with PC DOS 2.0 (From Wikipedia). Conventionally, sector size is 512 bytes and first sector of any storage drive contains MBR if that drive is partitioned with MBR scheme. MBR holds minimum boot loader code, primary/logical/ extended partition entry information, file system type, boot signature etc. The structure of classical MB
Read more

Replace default splash screen in Yocto

-
Image
On boot, if you have observed a splash screen with yocto logo appears in core-image-sato. This post is all about to change that splash screen with your own customized image.  Splash screen is handled by a recipe called psplash found under "poky/meta-poky/recipes-core" directory of the source tree.  Since psplash expects an image to be in header file format, first you need to convert your image into a header file format by using script called "make-image-header.sh" Here is what  make-image-header.sh contains, source -  http://git.yoctoproject.org/cgit/cgit.cgi/psplash/tree/make-image-header.sh You could replace your generated image header in  poky/meta-poky/recipes-core/psplash/files with existing one but I would recommend to create a recipe in your own layer and add this image file there. Steps to be followed, Get your own splash screen image(I took .jpg image) Convert that into header file by using script described above ./ make-image-header.sh &
Read more