What is inode?
In Linux and similar file systems, the management record for one file that holds its size, owner, permissions, modification time, where its contents are placed on disk, and so on. Within a file system it is identified by a number (the inode number), which can be checked with ls -i or stat. The file name is not part of the inode: the directory holds the "name to inode number" mapping, so one inode can have several names (hard links). In file systems where the number of inodes is fixed when the file system is created, a huge number of small files can use up all the inodes so that no new file can be created even though space remains; df -i shows the usage.
Japanese name: inode
inode appears in 1 practice question across 1 topic, including Linux and Command-Line Basics.