Essential Commands for Checking Storage Usage

Here are key commands to analyze storage devices and their usage status:

• List available drives and their mount points:

  # lsblk

• Display disk usage for each filesystem, including total size, used space, and usage percentage:

  # df -h 

• Check the size of a specific directory:

  # du -sh /home

Advanced Commands for Storage Analysis

• Summarize overall disk usage:
  To get a quick overview of the largest files and directories consuming space, use:

  # sudo du -ah / | sort -rh | head -n 20

  Example:

  # sudo du -ah cloudmail/2024-02-06/accounts/ | sort -rh | head -n 20

  

• Analyze disk usage by file type:
  If you need to check which file types are taking up the most space, use:

  # sudo find /path/to/directory -type f -exec du -h {} + | sort -rh | head -n 20

These commands help efficiently monitor and manage disk space usage on your system.