Files and File System
Everything is a file
A file is an addressable location that contains some data which can take many forms.
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Text data
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Binary/Image data
Files have associated meta-data
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Owner
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Group
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Timestamps
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Permission
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Read(r)
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Write (w)
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Execute(x)
File permissions
File names
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Case-sensitive: "myfile.txt" is different from "MyFile.txt".
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Hidden files: Filenames starting with a dot (.) are hidden by default.
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File extensions: Not mandatory, but using them helps identify file types.
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Spaces: Allowed but not recommended, use
_or–instead.
Best practices of file names
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Keep names descriptive and concise.
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Use lowercase for consistency.
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Avoid special characters unless necessary.
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Stick to alphanumeric characters, underscores, and hyphens.
File organization
Everything is mounted to the root directory
Files are referred to by their location called the path
- Absolute Path (From the root)
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/cluster/tufts/pi01/user01
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Relative Path (From my current location)
- user01/file01
