How to get the size of a directory using the command line in Linux

1. Open a new Terminal Window and type the following command:

   du -shc folderPath

   Explanation of the du command:

   du - estimate file space usage
   
   -s, --summarize, display only a total for each argument
   -h, --human-readable, print sizes in human readable format (e.g., 1K 234M 2G)
   -c, --total, produce a grand total
   

    

2. Replace folderPath with the folder to check the size on.