New posts in Posix

How do I bring HEREDOC text into a shell script variable?

Unix systems without /dev/stdin, /dev/stdout, and /dev/stderr?

Do progress reports/logging information belong on stderr or stdout?

Is mv atomic on my fs?

Separate namespaces for functions and variables in POSIX shells

Are there standard versions of `sed` on which `-E` is unsupported?

What is the portable (POSIX) way to achieve process substitution?

Portable POSIX shell alternative to GNU seq(1)?

Does POSIX limit the number of directories in the os root?

Is there a Linux distro that's UNIX certified?