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What are file permissions in Unix, and how are they represented?
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File permissions in Unix control the access levels for files and directories. They determine who can read, write, or execute a file. Permissions are represented in a triplet format for the owner, group, and others (e.g., rwxr-xr--).
• r: Read permission.
• w: Write permission.
• x: Execute permission.
Permissions can also be represented numerically using a three-digit code, where each digit ranges from 0 to 7 (e.g., 755). The digits represent the sum of the permission values (4 for read, 2 for write, 1 for execute).
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Answer / nashiinformaticssolutions
File permissions in Unix control the access levels for files and directories. They determine who can read, write, or execute a file. Permissions are represented in a triplet format for the owner, group, and others (e.g., rwxr-xr--).
• r: Read permission.
• w: Write permission.
• x: Execute permission.
Permissions can also be represented numerically using a three-digit code, where each digit ranges from 0 to 7 (e.g., 755). The digits represent the sum of the permission values (4 for read, 2 for write, 1 for execute).
| Is This Answer Correct ? | 0 Yes | 0 No |
Sorry to all Technical person for mistake of Question. Now i am post currect question Why copied file permission is changed in destination. When i give all permission i.e 777 to file and copy that to other location in destination the permission is 755. But if give permission 555 in destination that file permission is 555 and if give permission 444 to file after copy in destination the file permission is 444. These all are happening in normal user. How the umask value is calculate here really i am not understand. Please write the proper answer. Thanks in Advance
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