Du Command in Linux

The du command is a standard Linux/Unix command that allows a user to gain disk usage information quickly. It is best applied to specific directories and allows many variations for customizing the output to meet your needs.

1. How do I find DU command in Linux?
2. What is DU command line?
3. How does Du work?
4. What is the use of DU and DF command in Unix?
5. How do I find the Linux version?
6. How do I check memory on Linux?
7. What does du mean in Linux?
8. What is Sudo in Linux?
9. What is DU terminal?
10. What unit does DU use?
11. What unit is Du in Linux?

How do I find DU command in Linux?

unlike df which prints information about the disk usage of the mounted file systems , the du command gives you estimate of disk space used by given files or directories. You can view all available du command options by typing man du in your terminal.

What is DU command line?

The du command is a command line utility for reporting file system disk space usage. ... It supports showing just directories or all files, showing a grand total, outputting in human readable format and can be combined with other UNIX tools to output a sorted list of the largest files of folders on a system.

How does Du work?

1 Answer. du uses stat(2) to find the number of blocks used by a file. If you run stat big you should see that the number of blocks matches the number given by du . You can force du to count bytes using the -b option; then its output matches ls 's.

What is the use of DU and DF command in Unix?

The (very complicated) answer can be best summarized like this: The df command provides a sweeping ballpark figure for how much space is being utilized on your filesystem as a whole. The du command is a much more accurate snapshot of a given directory or subdirectory.

How do I find the Linux version?

Check os version in Linux

1. Open the terminal application (bash shell)
2. For remote server login using the ssh: ssh user@server-name.
3. Type any one of the following command to find os name and version in Linux: cat /etc/os-release. lsb_release -a. hostnamectl.
4. Type the following command to find Linux kernel version: uname -r.

How do I check memory on Linux?

Linux

1. Open the command line.
2. Type the following command: grep MemTotal /proc/meminfo.
3. You should see something similar to the following as output: MemTotal: 4194304 kB.
4. This is your total available memory.

What does du mean in Linux?

du (abbreviated from disk usage) is a standard Unix program used to estimate file space usage—space used under a particular directory or files on a file system.

What is Sudo in Linux?

Sudo, the one command to rule them all. It stands for “super user do!” Pronounced like “sue dough” As a Linux system administrator or power user, it's one of the most important commands in your arsenal. ... It is much better than logging in as root, or using the su “switch user” command.

What is DU terminal?

The du (disk usage) command measures the disk space occupied by files or directories.

What unit does DU use?

du computes file space in units of 512 bytes. The actual disk space that is used by files and directories might be more, since some systems allocate space in units of some multiple of a sector. On UNIX System V, it is usually two sectors; on UNIX Version 7, it is one sector. The allocation unit is file system specific.

What unit is Du in Linux?

du measures file space in 512-byte units. The attempt is made to report actual file space used, if possible. This means on UNIX systems actual file space used for sparse files; on 2012/8.1/2012R2/10/2016/2019 systems actual file space used for compressed files.