• Linux: Sort du -h (human-readable) Output By Size

  du -h | sort -h
  du --human-readable | sort --human-numeric-sort

# 2번 필드를 숫자로 간주하고 정렬.
sort -n -k2

cat access.log | awk '{print $1}' | sort | uniq -c | sort -n -k1

bash - Sort a text file by line length including spaces - Stack Overflow

# 정렬시 줄 길이 제거
awk '{print length, $0}' your-file | sort -n | cut -d " " -f2-
 
# 줄 길이를 맨 앞에 넣음.
awk '{print length, $0}' your-file | sort -n