11

I can do an ls -li to see a file's inode number, but how can I list information inside a particular inode by using that inode number.

Ijaz Ahmad
  • 7,202
  • Plain ls -l? What information are you after exactly? – Mat Apr 28 '16 at 11:34
  • Ok i just tried the stat command on the file name , and most of the information an inode contains is reported by stat command – Ijaz Ahmad Apr 28 '16 at 21:37
  • See this excellent answer: https://unix.stackexchange.com/questions/216644/simple-way-to-see-the-content-of-directories-in-linux-unix-file-systems/216664#216664 – wisbucky May 08 '19 at 17:57

3 Answers3

10

If you have a ext2/3/4 filesystem you can use debugfs for a low-level look at an inode. For example, to play without being root:

$ truncate -s 1M myfile
$ mkfs.ext2 -F myfile
$ debugfs -w myfile
debugfs:  stat <2>
    Inode: 2   Type: directory    Mode:  0755   Flags: 0x0
    Generation: 0    Version: 0x00000000
    User:     0   Group:     0   Size: 1024
    File ACL: 0    Directory ACL: 0
    Links: 3   Blockcount: 2
    Fragment:  Address: 0    Number: 0    Size: 0
    ctime: 0x5722081d -- Thu Apr 28 14:54:53 2016
    atime: 0x5722081d -- Thu Apr 28 14:54:53 2016
    mtime: 0x5722081d -- Thu Apr 28 14:54:53 2016
    BLOCKS:
    (0):24
    TOTAL: 1

The command stat takes a inode number inside <>.

meuh
  • 51,383
7

You can find inode information using stat command.

# stat myfile.txt
  File: myfile.txt
  Size: 2023        Blocks: 8          IO Block: 4096   regular file
Device: fd03h/64771d    Inode: 15997895    Links: 1
Access: (0644/-rw-r--r--)  Uid: ( 1000/   antop)   Gid: ( 1000/   antop)
Context: unconfined_u:object_r:user_home_t:s0
Access: 2019-08-30 08:29:16.974661276 +0530
Modify: 2019-08-30 08:29:16.974661276 +0530
Change: 2019-08-30 08:29:16.974661276 +0530
Birth: 2019-08-30 08:29:16.974661276 +0530

a detailed note on inode, hardlink & softlink

Anto
  • 171
1

an inode wil store only one file. try

find /xxx -xdev -inum 1234 -print

where

  • /xxx is mounting point
  • -inum 1234 search for an inode number 1234
  • -print self explainatory

This suppose /xxx is mounted an healthy.

Archemar
  • 31,554
  • Not quite what is requested in the question but still was useful in educational purpose. Thanks. – yozniak Jun 04 '21 at 04:34