How to check which file is the largest in Linux

Method: 1. Use the ls command, which can output file size information. The syntax is "ls -lSh specified folder | head -1"; 2. Use the find command, which can find the subdirectories of the directory. Directory, the syntax is "find specified folder -type f -printf ...|sort -n|tail -1"; 3. Use the du command, this naming can check the disk space usage, the syntax is "du -a /home| sort -n -r | head -n 1".

#The operating environment of this tutorial: linux7.3 system, Dell G3 computer.

How to check which file is the largest in Linux

3 ways to find the largest file on Linux

The first one: ls

The easiest way is to use the ls command, because the output of the ls command itself contains file size information.

For example, if I want to list the 5 largest files in the /bin directory, I can:

ls -lSh /bin | head -5

Second: find

find itself It is a search command that can recursively search subdirectories of a directory, so it is natural to use it.

For example, to find the largest file in the / directory:

sudo find / -type f -printf “%s\t%p\n” | sort -n | tail -1

If you want to find the top 10 large files, you can do this:

$ find $HOME -type f -printf ‘%s %p\n’ | sort -nr | head -10

You can also use the -size option To search, the following command will display all files larger than 100MiB (note not 100MB, the difference between MiB and MB, emmm):

find / -size +100M -ls

You can also search for files between an interval size (such as 100MiB and 200MiB) ：

find / -size +100M -size -200M -ls

Finally, the following command is also commonly used to find the five largest files in a directory:

find $DIRECTORY -type f -exec ls -s {} \; | sort -n | tail -n 5

The third type: du

## The #du command can check the usage of disk space. Naturally, it can also be used to check the files and folders that take up a lot of space on the disk.

For example, find the top 20 largest files under /home:

sudo du -a /home | sort -n -r | head -n 20

Find the 10 largest directories in the current folder:

sudo du -a | sort -n -r | head -n 10

If you want to display readable For KB, MB, and GB information, you can add the -h parameter:

du -hs * | sort -rh | head -n 10

Find the largest directory/file (including subfolders):

du -Sh | sort -rh | head -n 10

If you only look at all files with a size within the GB range file, you can use the du command and the grep command at the same time:

du -h -a /dir | grep “[0-9]G\b”

Recommended learning:

Linux video tutorial

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