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Kalkulator chmod

Oblicz uprawnienia Unix

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Permissions
WhoReadWriteExecute
Owner (u)
Group (g)
Others (o)
Special bits

Commands

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    • Za darmo

    How to work out chmod permissions

    1. Tick the permissions, type an octal number, or type the letters as ls -l shows them.
    2. Add special bits if you need them.
    3. Copy the chmod command.

    Reading the numbers

    NumberLettersMeaning
    7rwxread, write and execute
    6rw-read and write
    5r-xread and execute
    4r--read only
    0---nothing

    Common choices

    • 644 for normal files (only the owner can change them).
    • 755 for folders and scripts.
    • 600 for private files such as SSH keys and .env files, and 700 for private folders.
    • Avoid 777: everyone on the server can change the file.

    Najczęstsze pytania

    What do s and t mean in rwsr-xr-x?

    s is setuid or setgid: the program runs with the owner's (or group's) rights. t is the sticky bit: in a shared folder, people can delete only their own files. A capital S or T means the bit is set without execute permission.

    Is anything sent anywhere?

    No. Everything happens in your browser, and the page is blocked from uploading anything.