Best File Lock Tools to Buy in October 2025
File Cabinet Lock Replacement Compatible with Hirsh Industries - with 2 Keys, Fits Vertical Drawers, Filing Cabinets & Small Safe Box
-
QUICK INSTALL: REMOVABLE CORE FOR EASY LOCK REPLACEMENT.
-
UNIQUE KEYS: COMES WITH 2 DEDICATED KEYS FOR SECURE ACCESS.
-
UNIVERSAL FIT: COMPATIBLE WITH MAJOR FILING CABINET BRANDS.
Vaultz CD Case Holder - File Cabinet CD Rack w/ 2 Drawers and Key Locks, 8 x 14.5 x 15.5 Inch DVD Organizer and CD Storage Box - Black
- HIGH CAPACITY: STORE UP TO 165 DISCS WITHOUT CASES-PERFECT FOR ALL COLLECTIONS!
- KEY LOCKS FOR SECURITY: KEEP YOUR MEDIA SAFE FROM CURIOUS HANDS WITH PATENTED LOCKS.
- DURABLE DESIGN: PROTECT DISCS FROM SCRATCHES AND SPILLS WITH HIGH-QUALITY MATERIALS.
HON F24/F28 (2185) Replacement Filing Cabinet Lock Kit - File Cabinet Lock Replacement with Removable Core, Includes F26 Adapter Plate, Keyed Different - Lock Kit for Newer HON Vertical File Cabinets
-
SEAMLESS FIT FOR HON CABINETS: NO MODIFICATIONS NEEDED!
-
DURABLE MATERIALS ENSURE LONG-TERM SECURITY & RELIABILITY.
-
QUICK INSTALLATION WITH KEYS: UPGRADE YOUR SECURITY EFFORTLESSLY!
Dhiedas RFID Cabinet Lock, Hidden Digital Electronic Bluetooth RFID Smart Cabinet Drawer Lock for Adults Baby Proofing Teens Liquor Cupboard File
- UNLOCK WITH EASE: USE BLUETOOTH, RFID, NFC, OR IWATCH-NO KEYS NEEDED!
- INVISIBLE INSTALL: SECURE, DRILL-FREE DESIGN KEEPS YOUR FURNITURE INTACT.
- LONG-LASTING POWER: UP TO 365 DAYS OF USE, WITH LOW BATTERY ALERTS!
Oxford Document Organizer with Code Lock, Multi-Layer Storage Pouch Credential Bag, Portable Bag Without Vibration for MacBook,Passport,Package File Pocket with 2 Separators (Grey)
-
SECURE STORAGE: FEATURES A THREE-DIGIT LOCK FOR ADDED PROTECTION.
-
WATER-RESISTANT FABRIC: KEEPS CONTENTS DRY; EASY TO CLEAN SPILLS.
-
SPACIOUS & ORGANIZED: MULTIPLE COMPARTMENTS FOR A TIDY CARRY OF ESSENTIALS.
Pothunder Fingerprint Cabinet Lock, 1-1/4'' Auto Locking Bluetooth Biometric Keyless Child Safety Lock for File Drawer Furniture Double Door
- 🔒 UNLOCK WITH SPEED: 20 FINGERPRINTS, 0.2S ACCESS, NO KEYS NEEDED!
- 🌟 DURABLE ZINC ALLOY DESIGN: CRACK-RESISTANT AND ANTI-PRY SECURITY.
- 🔋 LONG-LASTING BATTERY: 6 MONTHS STANDBY, EASY USB-C CHARGING!
Replacement Fuel Filler Door Lock Actuator fits Kia
- BUILT WITH CUTTING-EDGE SOFTWARE FOR TOP-TIER QUALITY AND PERFORMANCE.
- USE OUR FITMENT TOOL TO ENSURE PERFECT COMPATIBILITY WITH YOUR VEHICLE.
- DESIGNED AS AN UPGRADE, OUR PARTS EXCEL BEYOND ORIGINAL OEM MATERIALS.
In Linux, the file_lock structure is stored in the Linux kernel's memory. It is not saved to any specific file on the disk. The file_lock structure is used by the kernel to handle file locks, which are used for coordinating access to files between multiple processes or threads. When a process locks a file, the necessary lock information is stored in the file_lock structure in memory. This structure contains details such as the type of lock, the range of bytes being locked, the process or thread ID that acquired the lock, and so on. The kernel uses this information to enforce locks and ensure that concurrent access to files is properly synchronized. However, specific details of how and where the file_lock structure is maintained in memory and linked to its associated files can vary depending on the implementation and version of the Linux kernel.
Can file locks be inherited by child processes in Linux?
No, in Linux file locks are not inherited by child processes. When a process creates a file lock using mechanisms like fcntl() or flock(), the lock is specific to that process and does not get inherited by any child processes it creates.
If a child process needs to acquire the same lock as its parent, it will need to explicitly request and acquire the lock itself.
Do file locks persist across system reboots in Linux?
No, file locks do not persist across system reboots in Linux. When a system is rebooted, all file locks are released and any active locks are lost.
Is file_lock stored as part of the file system metadata in Linux?
Yes, file lock information is stored as part of the file system metadata in Linux. The file system metadata contains various attributes and information about files, including file permissions, timestamps, ownership, and also information about file locks.
File locks are used to prevent multiple processes from concurrently accessing the same file or portions of the file. When a file lock is applied to a file, information about the lock, such as the process holding the lock and the type of lock (read or write), is stored in the file system metadata.
The file system metadata is typically managed by the file system itself, which tracks and enforces the file locks when processes try to access the locked file.
Where is the information about file locks stored in Linux?
In Linux, the information about file locks is stored in the kernel. The kernel maintains a data structure known as the "file table" for each open file, which contains various information about the file including its locks. The file table is part of the kernel's data structures and is not stored in the file system itself.
Are file locks exclusive to a specific user or can they be shared among multiple users in Linux?
In Linux, file locks can be exclusively acquired by a specific user or shared among multiple users, depending on the type of lock used. There are two types of locks that can be applied to a file: advisory locks and mandatory locks.
- Advisory locks: Advisory locks are not enforced by the system and must be respected by processes that are cooperating with each other. These locks are applied using fcntl() or flock() system calls and are typically used to coordinate access to shared resources. Advisory locks can be shared among multiple users, meaning that different processes owned by different users can acquire and release these locks.
- Mandatory locks: Mandatory locks, also known as "Mand Locks," are enforced by the Linux kernel, and all processes accessing the file must respect them. These locks are applied using the fcntl() system call with specific options, and they are typically used in security-sensitive scenarios. Mandatory locks can also be used to enforce exclusive access to a file, ensuring that only one user can access it at a time.
It is important to note that the ability to acquire or release file locks may depend on the permissions a user has on the file or the directory containing the file.