Get free disk space with df to just display free space in kb?

Question

I\'m trying to output the amount of free disk space on the filesystem /example.

If I run the command df -k /example I can get good informat

Answer 1

Show interesting columns only

 df /example --total -k -h  --output=source,avail

• --total = grand total at the end
• -k = block size 1K
• -h = human readable
• --output=[FIELD_LIST] column list to show separated by ","

Not totally standard (I have seen --output just in Ubuntu man pages), in this case Awk and others just to remove columns are not necessary.