Introduction
The df command is a useful tool for managing disk space on your Linux system. It displays information about the file system disk space usage, including the amount of free space, used space, and the percentage of space used. Here are some examples of using df command:
Show disk space usage in human-readable format
df -h
Show disk space usage for a specific file system
df -hT /dev/sda1
Show disk space usage for all file systems (including speudo file systems)
df -aTh
Show disk space usage for a specific file system and exclude file systems of a certain type
df -hT -x tmpfs /dev/sda1
Show disk space usage in bytes for all file systems (including empty file systems)
df -BT
Show disk space usage for a specific file system with inode information
df -i /dev/sda1
Show disk space usage with a specific output format
df --output=source,fstype,size,used,avail,pcent,target
Show disk space usage sorted by a specific column (ascending)
df -hT | sort -k 3
Show disk space usage sorted by a specific column (descending)
df -hT | sort -k 3 -r
Show disk space usage for all file systems and exclude the header line
df -hT | tail -n +2
Tips
- Use the
hoption to display disk space usage in human-readable format (e.g., GB, MB) - Use the
xoption to exclude file systems of a certain type (e.g., tmpfs,devtmpfs) - Use the
-outputoption to customize the output format of the command - Use the
sortandtailcommands to sort and filter the output as needed.
Conclusion
In summary, the df command is a powerful tool for managing disk space on your Linux system. With the various options available, you can easily view and analyze disk space usage for specific file systems and customize the output format.
Remember to use the available sorting and filtering commands to further manage and analyze the output.
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