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What are permissions?
Every Unix file has a set of permissions associated
with it that specify who is allowed to use that file and in
There are three kinds of permissions:
Permissions are granted to three kinds of users:
- A read permission means someone
can see what is in the file.
- A write permission means someone can
change what is in the file, or even remove it.
- An execute permission means someone can
run (execute) a file, if that file contains a program.
Next: Finding a file's permissions
See also: Controlling access to your files; Changing file permissions
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Last updated: 1995/12/04 19:39:34 UT