What are inodes in Linux? How do they work? What really happens when you type 'ls -l' into the Linux command line?
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An inode is a data structure in LINUX operating systems that contains important information pertaining to files within a file system. When a file system is created in LINUX, a set amount of inodes is created, as well. Usually, about 1 percent of the total file system disk space is allocated to the inode table.
Do you need a greater understanding of Linux inodes and file metadata?
Here we take a tour to make sure that we do truly understand inodes in Linux and what they do and contain. Firstly they do not contain the file name. This is stored separately and the file name is linked via the inode number to the inode. The inode itself contains the metadata about the file: the mode, ownership, size etc. Keeping the filename separate to the file metadata does mean that we can have then hard links, multiple file names that point to the one file by way of the inode. We will take a look at the ls command with the -i option along with stat and find -inum ; all of these command line tools help you gain knowledge and use inodes effectively in your system
Directories as filename-inode number pairs
How are inodes structured?
inspecting a real inode
what is a syscall?
practical inode-related Linux commands
common inode-related Linux problems and troubleshooting
how inodes are created in Linux (depends on filesystem)
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