Check folder size in Bash

Question

I m trying to write a script that will calculate a directory size and if the size is less than 10GB   and greater then 2GB do some action  Where do I need to mention my folder name     10GB SIZE  1074747474     check the current size CHECK   du  data sflow log    if     CHECK  -gt   SIZE     then   echo  DONE  fi

User · Answer

if you just want to see the folder size and not the sub-folders, you can use:

du -hs /path/to/directory

Update:

You should know that du shows the used disk space; and not the file size.

You can use --apparent-size if u want to see sum of actual file sizes.

--apparent-size
      print  apparent  sizes,  rather  than  disk  usage; although the apparent size is usually smaller, it may be larger due to holes in ('sparse')
      files, internal fragmentation, indirect blocks, and the like

And of course theres no need for -h (Human readable) option inside a script.

Instead You can use -b for easier comparison inside script.

But You should Note that -b applies --apparent-size by itself. And it might not be what you need.

-b, --bytes
      equivalent to '--apparent-size --block-size=1'

so I think, you should use --block-size or -B

#!/bin/bash
SIZE=$(du -B 1 /path/to/directory | cut -f 1 -d "   ")    
# 2GB = 2147483648 bytes
# 10GB = 10737418240 bytes
if [[ $SIZE -gt 2147483648 && $SIZE -lt 10737418240 ]]; then
    echo 'Condition returned True'
fi

User · Answer

Use a summary  -s  and bytes  -b    You can cut the first field of the summary with cut   Putting it all together   CHECK   du -sb  data sflow log   cut -f1

User · Answer

You can do   du -h your directory   which will give you the size of your target directory   If you want a brief output  du -hcs your directory is nice

User · Answer

if you just want to see the aggregate size of the folder and probably in MB or GB format  please try the below script   du -s --block-size M  path to your directory

User · Answer

To just get the size of the directory  nothing more   du --max-depth 0   directory   output looks like  5234232         directory

User · Answer

10GB SIZE  10      check the current size CHECK   du -hs  media 662499e1-b699-19ad-57b3-acb127aa5a2b Aufnahmen   CHECK   CHECK G   echo  Current Foldersize   CHECK GB   if      echo   CHECK  gt   SIZE   bc -l      then         echo  Folder is bigger than  SIZE GB  else         echo  Folder is smaller than  SIZE GB  fi

User · Answer

To check the size of all of the directories within a directory  you can use    du -h --max-depth 1

User · Answer

If it helps  You can also create an alias in your  bashrc or  bash profile   function dsize         dir   pwd      if     1           then             dir  1     fi     echo   du -hs  dir      This prints the size of the current directory or the directory you have passed as an argument

[bash] Check folder size in Bash

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