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- DU(1L) MISC. REFERENCE MANUAL PAGES DU(1L)
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- NAME
- du - summarize disk usage
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- SYNOPSIS
- du [-abcklsxDLS] [--all] [--total] [--count-links] [--sum-
- marize] [--bytes] [--kilobytes] [--one-file-system]
- [--separate-dirs] [--dereference] [--dereference-args]
- [path...]
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- DESCRIPTION
- This manual page documents the GNU version of du. du
- displays the amount of disk space used by each argument and
- for each subdirectory of directory arguments. The space is
- measured in 1K blocks by default, unless the environment
- variable POSIXLY_CORRECT is set, in which case 512-byte
- blocks are used.
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- OPTIONS
- -_a, --_a_l_l
- Display counts for all files, not just directories.
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- -_b, --_b_y_t_e_s
- Print sizes in bytes.
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- -_c, --_t_o_t_a_l
- Write a grand total of all of the arguments after all
- arguments have been processed. This can be used to
- find out the disk usage of a directory, with some files
- excluded.
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- -_k, --_k_i_l_o_b_y_t_e_s
- Print sizes in kilobytes. This overrides the environ-
- ment variable POSIXLY_CORRECT.
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- -_l, --_c_o_u_n_t-_l_i_n_k_s
- Count the size of all files, even if they have appeared
- already in another hard link.
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- -_s, --_s_u_m_m_a_r_i_z_e
- Display only a total for each argument.
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- -_x, --_o_n_e-_f_i_l_e-_s_y_s_t_e_m
- Skip directories that are on different filesystems from
- the one that the argument being processed is on.
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- -_D, --_d_e_r_e_f_e_r_e_n_c_e-_a_r_g_s
- Dereference symbolic links that are command line argu-
- ments. Does not affect other symbolic links. This is
- helpful for finding out the disk usage of directories
- like /usr/tmp where they are symbolic links.
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- -_L, --_d_e_r_e_f_e_r_e_n_c_e
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- Sun Release 4.1 Last change: 1
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- DU(1L) MISC. REFERENCE MANUAL PAGES DU(1L)
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- Dereference symbolic links (show the disk space used by
- the file or directory that the link points to instead
- of the space used by the link).
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- -_S, --_s_e_p_a_r_a_t_e-_d_i_r_s
- Count the size of each directory separately, not
- including the sizes of subdirectories.
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- BUGS
- On BSD systems, du reports sizes that are half the correct
- values for files that are NFS-mounted from HP-UX systems.
- On HP-UX systems, it reports sizes that are twice the
- correct values for files that are NFS-mounted from BSD sys-
- tems. This is due to a flaw in HP-UX; it also affects the
- HP-UX du program.
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- The long-named options can be introduced with `+' as well as
- `--', for compatibility with previous releases. Eventually
- support for `+' will be removed, because it is incompatible
- with the POSIX.2 standard.
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