File permission bits, ownership, and access control commands in Linux.
40 cards · basic cards · AI-written, checked twice. Edit anything.
- What does the read permission (r) allow on a file?
- View the file contents
- What does the write permission (w) allow on a file?
- Modify the file
- What does the execute permission (x) allow on a file?
- Run the file as a program
- What does read permission (r) allow on a directory?
- List the directory contents
- What does write permission (w) allow on a directory?
- Create or delete files in the directory
- What does execute permission (x) allow on a directory?
- Access and enter the directory
- What octal digit represents read permission?
- 4
- What octal digit represents write permission?
- 2
- What octal digit represents execute permission?
- 1
- In chmod 755, what do the three digits represent in order?
- Owner, group, others
- What does the first character in ls -l output represent?
- File type
- What symbol in ls -l indicates a regular file?
- A dash (-)
- What symbol in ls -l indicates a directory?
- The letter d
- How many characters after the file type show permission bits in ls -l output?
- 9 characters
- What do the 2nd, 3rd, and 4th characters in ls -l represent?
- Owner permissions