Ls file size path

In the script above, we start by asking the user to enter the file size format. Bash reads this input and stores it to the format variable. The next step calls the wc -c-command on the specified file. Since wc -c returns the file size in bytes and the file's path, we use AWK to grab only the file size. We store the size in bytes as filesize. Finally, we implement a simple if statement to check if the size format is either 1 Bytes , 2 Kilobytes , 3 Megabytes , 4 Gigabyte. We then use the bc command to convert file size in bytes to the specified format.

NOTE: We use a variating scale for the bc command to accommodate the number of decimals per evaluation. Feel free to improve it and tweak it to your needs. We cannot forget the stat command. Using the stat command, we can display detailed information about a file or the file system.

The stat command returns the size in bytes as well. You can use similar logic in the script above to select the format. Imagine you want to list a file in long format, including hidden files, and sort by file size. The command would be ls -alS , which is a combination of ls -l , ls -a , and ls -S. If you forget any command or are unsure about what to do, you can run ls --help or man ls which will display a manual with all possible options for the ls command:.

If you read this far, tweet to the author to show them you care. Tweet a thanks. Learn to code for free. Get started. Forum Donate. Bolaji Ayodeji. Prerequisites A computer with directories and files Have one of the Linux distros installed Basic knowledge of navigating around the CLI A smile on your face : The Linux ls Command The ls command is used to list files or directories in Linux and other Unix-based operating systems.

Launch your terminal and type ls to see this in action: How to list Files in a Directory with Options The ls command also accepts some flags also known as options which are additional information that changes how files or directories are listed in your terminal.

List files including hidden files Type the ls -a command to list files or directories including hidden files or directories. You can also add a -r flag to reverse the sorting order like so: ls -tr : List files and sort by file size Type the ls -S the S is uppercase command to list files or directories and sort by size in descending order biggest to smallest. Conclusion There are tons of other commands and combinations you can explore to list out files and directories based on your needs.

The information displayed includes the file and directory permissions, user and group ownership, file size, date and time modified, and the actual file and directory name.

When we use the ls -l command, it shows the file size of the files and directories. However, it makes much sense to us to tell ls to show file size in human-readable format; we can use the -h command as:.

Using the -h flag shows the total size of files and directories and the individual size of each file and directory in a human-readable format. You can also specify the block size for displaying the file size.

By default, the file size is in bytes. However, specifying the block size in Megabytes is unreliable because ls will show 1M for files below 1MB.

Similarly, this will show the smallest size as 1G. That is all for this one.