df
Disk Free. Displays the amount of disk space available on the file system.
Synopsis
df [options] [file]
Core Options
-hHuman readable. Print sizes in powers of 1024 (e.g., 1023M).
-TPrint file system type.
-iList inode information instead of block usage.
Usage Examples
Human Readable Usage
Show disk usage in GB/MB.
df -hSpecific Directory
Check which filesystem matches the current directory.
df -h .Show Filesystem Type
See if you are running ext4, xfs, etc.
df -ThBuilt for builders.