secure open source. binaries built in minutes. build your python, perl, ruby and tcl dependencies from source and get a secure and easy-to-share runtime.

a computer science portal for geeks. it contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview questions.

stack overflow is the largest, most trusted online community for developers to learn, share​ ​their programming ​knowledge, and build their careers.

github is where over 100 million developers shape the future of software, together. contribute to the open source community, manage your git repositories, review code like a pro, track bugs and features, power your ci/cd and devops workflows, and secure code before you commit it.

all unix, linux and other unix-like operating systems are families of computer operating systems derived from the original unix system from at&t bell laboratories. today, the largest unix descendent directly certified as unix is macos by apple. the original commercial unix derivatives included hp-ux, aix and sunos, to name a few. the diversity and perceived incompatibility between various unix systems led to the creation of interoperability standards including the portable operating system interface (posix). we provide free linux and unix shell scripting, system administration and other programming help.

tutorials point is an online learning platform providing free tutorials, paid premium courses, and ebooks. learn the latest technologies and programming languages sql, mysql, python, c, c++, java, python, php, machine learning, data science, ai, prompt engineering and more.

at regular-expressions.info you will find a wide range of in-depth information about a powerful search pattern language called regular expressions.

tek-tips forums is an intelligent work forum community for information technology professionals.