The -l option lists files in the long format, which includes the following information: file mode, number of links, owner name, group name, number of bytes in the file, abbreviated month, day-of-month file was last modified, hour file last modified minute file last modified, and the pathname. When using the -h option in conjunction with the -l option, the ls command will show the file size in a condensed, human-friendly format with these unit suffixes: Byte, Kilobyte, Megabyte, Gigabyte, Terabyte and Petabyte in order to reduce the number of digits to four or fewer using base 2 for sizes.