# The `du` command

The `du` command, which is short for `disk usage` lets you retrieve information about disk space usage information in a specified directory. In order to customize the output according to the information you need, this command can be paired with the appropriate options or flags.

### Examples:

1. To show the estimated size of sub-directories in the current directory:

```
du
```

2. To show the estimated size of sub-directories inside a specified directory:

```
du {PATH_TO_DIRECTORY}
```

### Syntax:

```
du [OPTION]... [FILE]...
du [OPTION]... --files0-from=F
```

### Additional Flags and their Functionalities:

*Note: This does not include an exhaustive list of options.*

|**Short Flag**   |**Long Flag**   |**Description**   |
|:---|:---|:---|
|`-a`|`--all`|Includes information for both files and directories|
|`-c`|`--total`|Provides a grand total at the end of the list of files/directories|
|`-d`|`--max-depth=N`|Provides information up to `N` levels from the directory where the command was executed|
|`-h`|`--human-readable`|Displays file size in human-readable units, not in bytes|
|`-s`|`--summarize`|Display only the total filesize instead of a list of files/directories|