CmdID / Commands
Print the free space fragmentation information for ext2/ext3/ext4 filesystems. tldr-pages
On Linux
Opens CmdID with your command. It is read in your browser and sent nowhere.
Check how many free blocks are present as contiguous and aligned free space
e2freefrag /dev/sdXN
Specify chunk size in kilobytes to print how many free chunks are available
e2freefrag -c chunk_size_in_kb /dev/sdXN