1. Java Tutorial for Complete Beginners Requirements: Basic fluency with computers Description: Learn to program in the Java programming language. This course assumes no prior programming knowledge, just a desire to learn to program. Who this course is for: Anyone…
Unix File Structure: File: The file is a container for storing information. As a first approximation, we can treat it simply as a sequence of characters. If you name a file foo and write three characters a, b and c…
Introduction: Why shell programming? A working knowledge of shell scripting is essential to everyone wishing to become reasonably adept at system administration, even if they do not anticipate ever having to actually write a script. When a Linux machine…
Text processing utilities: Cat: The cat command reads one or more files and prints them to standard output. The operator > can be used to combine multiple files into one. The operator >> can be used to append to an…
Unix PROGRAMMING Introduction to Unix: Unix is a multitasking, multi-user computer operating system originally developed in 1969 by a group of AT&T employees at Bell Labs, including Ken Thompson, Dennis Ritchie, Brian Kernighan, Douglas McIlroy, and Joe Ossanna. The Unix operating system was first developed in assembly language, but by 1973 had…
The correct fix is to update your SSL certificates. sudo yum upgrade ca-certificates –disablerepo=epel You need to disable the epel repo so that this command will succeed. After you update your certificates you can use yum normally as EPEL will…
Binary Cipher