Check if a file is really a file, whether a string contains anything, and whether you can run a program with these vital patterns.

After U.S. postal workers got a letter advising how to work during epidemics, hurricanes and civil unrest, social media posts spun the guidance into a conspiracy theory: Surely this was a sign of an ...

For people who still want their tax refunds mailed to them as a paper check, the Internal Revenue Service has a message: be prepared to wait for it. The agency on Tuesday explained how it plans to ...