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

Exclusive: Venezuela's PDVSA selling oil only to individually licensed companies, sources say Venezuela's state-run oil company PDVSA has refused to sell oil to companies without individual U.S.

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Zellij is a modern terminal multiplexer similar to Tmux, offering a clear, organized interface and efficient session management.