65%
Odsetek ankietowanych Polaków deklarujących korzystanie z narzędzi AI według raportu „E-commerce w Polsce 2026”
IAB Polska2026Poland
A family of operating systems from which Linux and macOS are derived. Common features: everything is a file, owner/group/other permissions, small tools combined via pipelines.
Why it matters
Our entire server runs on Linux. Permissions, file ownership, and processes are everyday concerns during any outage.
What's missing without it
Without understanding permissions, you can either break a working service or leave a directory open for write access to everyone.
When it is used
Whenever working on a server, diagnosing failures, or deploying applications.
How we use it
Permissions `755` on directories and `644` on files are standard for websites; `777` means anyone can write — and that's an invitation to trouble.
Numbers worth knowing
Technical in data
470 000 000 000
IDC Worldwide AI and Generative AI Spending Guide 2026 V2 prognozuje, że europejskie wydatki na AI osiągną blisko 470 mld dolarów do 2030 roku
IDC09/2026Europe
470 000 000 000
Prognozowane całkowite wydatki na AI w Europie w 2030 roku według IDC Worldwide AI and Generative AI Spending Guide 2026 V2
IDC09/2026Europe
Figures from the same field — collected in our market data base.