What is the difference between df and du in Linux?

What is the difference between df and du in Linux? 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.

What is df Linux? The ‘df’ command stands for “disk filesystem“, it is used to get a full summary of available and used disk space usage of the file system on the Linux system.

What does df du mean? The df and du commands are two small utilities that are extremely useful. The df command displays the disk free space and the du command displays the disk usage.

What is du in Linux command? 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.

What is the difference between df and du in Linux? – Additional Questions

How do you use du command?

To utilize the basic usage of the du command, simply open a terminal window, type du, and hit Enter. The output displays each directory’s disk usage and path, along with the total disk usage of the parent directory.

How do I see disk space in Linux?

Linux check disk space with df command
  1. Open the terminal and type the following command to check disk space.
  2. The basic syntax for df is: df [options] [devices] Type:
  3. df.
  4. df -H.

What does the du command do Mcq?

du command can also be used for reporting the disk space consumed by each user. Explanation: Most of the dynamic space in the system is consumed by users, their directories and files. We can use the following command if we want to know the disk space consumed by each user. 4.

How do you sort by size in du command?

Using the du and sort Commands

We can use du and sort commands to list and sort files according to their size: $ du -ah –max-depth=1 | sort -h 451M ./dir2 751M ./dir1 1.2G ./file4.

How do I get a list of files in a folder by size?

To list all files and sort them by size, use the -S option. By default, it displays output in descending order (biggest to smallest in size). You can output the file sizes in human-readable format by adding the -h option as shown. And to sort in reverse order, add the -r flag as follows.

How can I tell which directory is taking up more space?

The procedure to find largest files including directories in Linux is as follows:
  1. Open the terminal application.
  2. Login as root user using the sudo -i command.
  3. Type du -a /dir/ | sort -n -r | head -n 20.
  4. du will estimate file space usage.
  5. sort will sort out the output of du command.

How do I sort in du?

You do a normal du but add the -h to the sort command. You can add -rh so the largest are first in the file, otherwise you need tail to see the space hogs. See also superuser.com/questions/300606/… for a friendlier alternative ( ncdu ).

How do you sort du command output?

Method of Sorting the “du” Command Output by Size (Largest to Smallest)
  1. Step 1: Check the Help Manual of the “du” Command (Optional)
  2. Step 2: Sort the Output of the “du” Command by Size (Largest to Smallest)

How do I sort a column in Linux?

Use the -k option to sort on a certain column. For example, use “-k 2” to sort on the second column.

How do I sort in reverse order in Linux?

To sort in reverse order pass the -r option to sort . This will sort in reverse order and write the result to standard output. Using the same list of metal bands from the previous example this file can be sorted in reverse order with the -r option.

How do I list files alphabetically in Linux?

As we already mentioned, by default, the ls command is listing the files in alphabetical order. The –sort option allows you to sort the output by extension, size, time and version: –sort=extension (or -X ) – sort alphabetically by extension.

How do I sort multiple files in Linux?

I believe that this is your best bet, using stock linux utilities:
  1. sort each file individually, e.g. for f in file*. txt; do sort $f > sorted_$f.
  2. sort everything using sort -m sorted_file*. txt | split -d -l <lines> – <prefix> , where <lines> is the number of lines per file, and <prefix> is the filename prefix.

How do I sort ascending order in Linux?

To sort a file containing numeric data, use the -n flag with the command. By default, sort will arrange the data in ascending order. If you want to sort in descending order, reverse the arrangement using the -r option along with the -n flag in the command.

How do I remove duplicate files in Linux?

The uniq command is used to remove duplicate lines from a text file in Linux. By default, this command discards all but the first of adjacent repeated lines, so that no output lines are repeated. Optionally, it can instead only print duplicate lines.

What is Korn shell in Linux?

The Korn shell is an interactive command interpreter and command programming language. It conforms to the Portable Operating System Interface for Computer Environments (POSIX), an international standard for operating systems.

Why we use sort in Linux?

The sort command is used in Linux to print the output of a file in given order. This command processes on your data (the content of the file or output of any command) and reorders it in the specified way, which helps us to read the data efficiently.

What is in awk?

Awk is a utility that enables a programmer to write tiny but effective programs in the form of statements that define text patterns that are to be searched for in each line of a document and the action that is to be taken when a match is found within a line. Awk is mostly used for pattern scanning and processing.