how to check the directory size using find command in bash script

Question

I have a requirement of finding the directory size which is more than a particular value and I made a script for the same. But find command is not accepting -size section. Can anyone help me on this

echo -e "This script will generate report for directories which consumes more size than the given value"
read -p " Enter the file system or directory full path: " path
read -p " This script will check the directories which is greater than the given size Please Enter the directory size in GB: " size
find $path  -type d -size +$sizeG -exec ls -ld {} \;

error

find: invalid -size type `+'

Your command looks for a variable named sizeG; you want ${size}G, or "$size"G, or "${size}G". — Benjamin W.
– Benjamin W., Commented Aug 26, 2020 at 17:13
-size on directories probably doesn't work as you expect. It doesn't count the size of the files inside the directory. You probably need to use du $path instead and filter out the directories you want. — Ted Lyngmo
– Ted Lyngmo, Commented Aug 26, 2020 at 17:15
I reopened as "not a duplicate" because fixing the variable name error doesn't result in what you want, as per @TedLyngmo's comment. — Benjamin W.
– Benjamin W., Commented Aug 26, 2020 at 17:16
Use df instead of du if you want the size of an entire volume. — glenn jackman
– glenn jackman, Commented Aug 26, 2020 at 17:57

Fatih Şennik · Accepted Answer · 2020-08-26 18:53:37Z

0

In order to eliminate bad substitution error in bash script. Wrap the variable size with a double quota.

    echo -e "This script will generate report for directories which consumes more size than the given value"

read -p " Enter the file system or directory full path: " path
read -p " This script will check the directories which is greater than the given size Please Enter the directory size in GB: " size

echo "+${size}G";

find $path  -type d -size "+${size}G" -exec ls -ld {} \;

answered Aug 26, 2020 at 18:53

Fatih Şennik

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4 Comments

MOBIN TM Over a year ago

I tried it but not working. To narrow down the issue, I tried to execute find command alone and found it is not giving result if we use -type d. find /root -size +10M -type d -exec ls -ld {} \;

Fatih Şennik Over a year ago

if you are getting permission denied error. Try with Sudo privilege.

Fatih Şennik Over a year ago

Sample from ubuntu: fatihsennik@fatihsennik:~$ find / -type d -size +10G -exec ls -ld {} \; find: ‘/etc/polkit-1/localauthority’: Permission denied

MOBIN TM Over a year ago

No. It is not permission denied error. output will not get id we use type but we will get the result if we use type f

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