Linux's 'everything is a file' idea is 50 years old, and it still explains why the OS feels so different
xda-developers.com/linuxs-everything-is-a-file-idea-is-50-years-old-and-it-still-explains-why-the-os-feels-so-different/
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A Unix principle still shapes LinuxUnix took shape at Bell Labs from 1969; Linux provides access to device and kernel information through file interfaces.
Key FactsOct 25, 2026 · Reading time: ~30 sec.
Summary created with AI assistance · Source: xda-developers.com
Summary created with AI assistance · Source: xda-developers.com
- Unix began at Bell Labs in 1969; Ritchie and Thompson’s 1974 work distinguished three file types, including device files.
- On Linux, /dev represents hardware as files: SATA drives appear as /dev/sda, while NVMe drives include names such as /dev/nvme0n1.
- The virtual filesystems /proc and /sys expose kernel information; battery charge, for example, is available there as a percentage.
- Unix gained pipes in early 1973, forwarding program output; PowerShell instead passes structured, .NET-based data between commands.
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Linux's 'everything is a file' idea is 50 years old, and it still explains why the OS feels so different
xda-developers.com/linuxs-everything-is-a-file-idea-is-50-years-old-and-it-still-explains-why-the-os-feels-so-different/
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Summary created with AI assistance · Source: xda-developers.com
Summary created with AI assistance · Source: xda-developers.com
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Summary created with AI assistance · Source: theregister.com
Summary created with AI assistance · Source: theregister.com
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