Sticky bit in Solaris
Describe sticky bit in Solaris?
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If a directory is writable & has sticky bit is set, files inside directory removed or renamed only if one or more following is true:
1. The user owns the file
2. The user owns the directory
3. The file writable by the User
4. The user is "root"
5. chmod 1777 project_dir
The sticky bit is displayed like the letter t in the execute field for 'others'. It is a permission bit which protects the files inside a Directory. If the directory has sticky bit set, a file can be removed by the owner of the file, the owner of the directory or root. It prevents a user from deleting other user’s files from public directories.
Under-approximation: Under-approximation occurs when behaviors are removed to create the abstract system. This approach corresponds to error-preserving abstractions (where the properties are safety or more general universal properties such as LTL). As
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