How can I find how much disk does a list of files uses? I'm looking for a variation of
du -s *.sql
I want to see only the grand total, and with the command above, it always shows a line for each file.
7
13
You can use tail to cut the last line (the total) from the output of du:
du -c *.sql | tail -n 1
There seems to be no way to make du itself report just the total of a set of files.
3
What doesn't work from your example? Do you want a sum?
man du shows that the -c option provides a sum of usage:
du -sc *.sql
You may also like the -h or -k arguments.
2
Your question is very ambiguous but I suspect you are looking for the -c flag to produce a total.
du -c *.sql
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I want it to have the same effect as
du -s dir. Which will summarize disk usage of the directory, and nothing else. – Elazar Leibovich May 23 '11 at 13:44
1
can be a variation like:
du -sch * | tail -n 1
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This doesn't add anything to the accepted answer of
du -c * | tail -n 1. Also the-soption doesn't do anything here. – Wildcard Dec 22 '15 at 4:44 -
2This is essentially a combination of the other answers. The
-hoption is not called for; the OP didn't ask for it.| tail -n 1is better than| grep totalbecause there might be files whose names contain the wordtotal. – G-Man Dec 22 '15 at 4:46 -
1@Wildcard: Actually,
-sdecreases the amount of data being written through the pipe (if any of the argument(s) are directories). – G-Man Dec 22 '15 at 4:48 -
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that's why i added -s flag ... my understanding of original query is that is wanted the grand total of all files from subdirectories combined in separate grand totals not the listing for every file each how much space eat. If not then -s is wrong will eat all files from subdirectories. Tail -n 1 is ever better, thanks! – totedati Jul 9 '18 at 8:16
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cat *.sql | wc -c
Answer is in bytes.
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2Yeah, but you need to read the whole whopping 10Gb in order to tell it... – Elazar Leibovich May 26 '11 at 4:18
