DU(1)
NAME
du − summarize disk usage
USAGE
du [ −a ] [ -s ] [ names ]
DESCRIPTION
Du prints the number of kilobytes contained in all files and directories specified by names. It counts a file with two or more links only once. If you do not specify a names argument, du prints information about the current directory by default.
OPTIONS
−a Generate an entry for each file.
−s Print only the grand total of kilobytes for each of the specified names.
CAUTIONS
Absence of either the −a option or the −s option causes an entry to be generated for each directory only.
If you do not use the −a option, nondirectories given as arguments are not listed.
If too many distinct linked files exist, du counts the excess files more than once.