Chapter-4 Crossword

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Across
  1. 1. A command used in UNIX and Linux to copy files and directories.
  2. 4. A command in UNIX/Linux used to change the group ownership of a file or directory.
  3. 7. A command used to remove files or directories.
  4. 9. Sections of storage in a file system where actual file data is kept.
  5. 11. A command used to remove empty directories
  6. 13. An environment variable in operating systems that specifies a set of directories where executable programs are located.
  7. 14. A data structure in a file system that contains information about the file system's layout and status.
  8. 15. A command in UNIX/Linux used to display the type of a command (alias, function, built-in, or external).
  9. 16. A Linux command used to locate the executable file associated with a given command.
  10. 17. The user who has control over a file or directory in a UNIX/Linux system, with the ability to modify permissions.
  11. 19. A command in UNIX/Linux used to create an empty file or update the timestamp of an existing file.
  12. 20. A UNIX/Linux command used to create a link to a file, either hard or symbolic.
Down
  1. 2. A technique used in decision trees and search algorithms to eliminate less promising branches and improve efficiency.
  2. 3. Attributes that control who can read, write, or execute a file or directory in a file system.
  3. 5. A method or function that calls itself to solve problems step by step.
  4. 6. A Linux command used to search for files and directories based on name, size, type, or other attributes.
  5. 8. The main group assigned to a user in UNIX/Linux systems, often used for file permissions.
  6. 10. A Linux command used to quickly find the location of a file by searching a pre-built database.
  7. 12. A command in UNIX/Linux used to change the ownership of a file or directory.
  8. 18. A Linux command used to locate the binary, source, and manual page files for a command.