How full is full? (who_full, ls_fullest, df, du, df -h, du -ks, sort, only one partition)

du_ks_sort.sh

#!/bin/bash

initDuks() {
  tgt=$1 ;
  [[ $tgt ]] || tgt='/var' ;
  
  cd "$tgt" ;
  duks ;
}

duks() {
  pwd ;
  ls -a | egrep -v '^[.][.]?$' | while read e ; do 
    x=`df -h "$e" | tail -1 | awk '{print $NF}'` ; 
    [[ "$x" == "$tgt" ]] && sudo du -ks "$e" 2>/dev/null ; 
  done | sort -n -k 1 | tail ;
}

# # # Example:
initDuks /var ;
cd someBigFolder ;
duks ;

#