So my disk is full, I am trying to grep for all the files larger than 1G. I tried searching for the word Sort in the man page of DU, but found nothing.

du -h . | grep -E "^\d*\.\d*G"

and also this.

du -h . | grep -E "^\d*?\.\d*?G"

I tried both of these command, but it is missing all the 1Gb files. My Regex-Fu is a bit rusty these days, so I figured I might just ask in stack-exchange.

  • you can just do with du -h -t 1G – αғsнιη Oct 19 '18 at 14:27
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    and what if you had a Terabyte-sized file? I think you'd have an easier time if you didn't tell du to make the sizes human-readable, since you're now asking the computer to read the sizes. – Jeff Schaller Oct 19 '18 at 16:27
  • @JeffSchaller I have exactly 44GB on that drive :) – Aditya Oct 19 '18 at 16:28
  • I see your point though. – Aditya Oct 19 '18 at 16:30
  • Another handy tool for interactive disk space digging is ncdu – Criggie Apr 18 '19 at 21:26

Use find:

find . -type f -size +1G
| improve this answer | |
  • Right .. but what was wrong with my regex? – Aditya Oct 19 '18 at 14:10
  • Extended Regex doesn't know about \d, use PCRE (grep -P) or use [0-9]. Note that if \. doesn't work for some languages. – pLumo Oct 19 '18 at 14:16
  • @aditya your regex was incorrect. As to why...? Ask a regex expert. You wanted help on solving a problem (finding files > 1G). perlmonks.org/index.pl?node_id=542341 – 0xSheepdog Oct 19 '18 at 16:34
  • Easy there now, I cannot accept answers with in 10 minutes of posting a question. I never said that I have an issue with his answer. I was just curious to know why my solution didn't work. – Aditya Oct 19 '18 at 16:37

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