Every computer user in the world sooner or later will modify a text string – either manually or automatically. Be introduced to the sed stream editor, which enables you to make bulk text modifications to strings and files.
Generating random numbers in bash seems simple to do using the $RANDOM variable, but is the variable truly that random? Find out what may be preventing you generating high quality random numbers, and more!
In late 1980, someone at IBM had a pretty neat idea. Responding to the popularity of “personal computers” like the Apple II and the TRS-80, IBM decided to get into the game. After a fast-paced development, IBM announced the first IBM Personal Computer 5150 in August 1981. To hit the market quickly, IBM mostly used off-the-shelf parts and licensed or purchased other components from third parties. One of those was the operating system.
Despite powering over 90% of cloud workloads today, Unix (and Linux with it) had humble beginnings. Jim Hall discusses how Unix from Bell Labs in the 1970s became the backbone of many modern operating systems.