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32 lines
1.4 KiB
Plaintext
32 lines
1.4 KiB
Plaintext
# du
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# Estimate file space usage
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# With 'root' privileges, use du(1), sort(1), and head(1) to display a list of
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# the top 20 space-consuming files in whichever storage medium '/' is mounted.
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#
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# Here, du(1) is using the `-x` flag to keep to the one filesystem, which is
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# important for getting accurate results on the filesystem on which you
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# might, for example, be needing to free space.
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#
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# In order to sort the human-readable file sizes, sort(1) is using the `-h`
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# flag, the `-k` flag to specify the column to sort (first), and its using
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# the `-r` flag to reverse the sorting, so we see the highest size first.
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#
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# To then show the top-20 lines, we use head(1) and specify the number of lines
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# via the `-n` flag. The default number of lines displayed by head(1) and
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# tail(1) is 10.
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#
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# Root privileges are gained for this task by using sudo(8) on bash(1) in order
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# to have a new root-owned BASH session, which then executes the commands
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# proceeding the `-c` flag.
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sudo bash -c 'du -xh / | sort -rhk 1 | head -n 20'
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# Display just the total human-readable size of the current working directory.
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du -sh
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# Display the total human-readable size of the three provided directories, as
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# well as the grand total of the combined directories.
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du -chs ~/Desktop ~/Pictures ~/Videos
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# You could potentially make this task a bit easier with BASH brace expansion.
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du -chs ~/{Desktop,Pictures,Videos}
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