get the size and other info with the "du" command - linux

Question

I'm doing a little script on bash, which shows the total size in mb, the number of files, the number of the folder and the name of folder.
I have almost everything except the size in mb
du -a -h | cut -d/ -f2 | sort | uniq -c
It shows something like this:
4 01 folder 01
6 02 folder 02
11 03 folder 03
13 04 folder 04
16 05 folder 05
.....
15 13 folder 13
1 5.7G .
as you see, the sort is: number of files, number of folder and name.
I want this:
300M 4 01 folder 01
435M 6 02 folder 02
690M 11 03 folder 03
780M 13 04 folder 04
1.6G 16 05 folder 05
.....
15 13 folder 13
1 5.7G .
thank you in advance.
PD there is some way to show the name over each column like this?
M F # name
300M 4 01 folder 01
435M 6 02 folder 02
690M 11 03 folder 03
780M 13 04 folder 04
1.6G 16 05 folder 05
.....
15 13 folder 13
1 5.7G .

Answer 1

How about this?
echo -e "Size\tFiles\tDirectory"; paste <(du -sh ./*/ | sort -k2 | cut -f1) <(find ./*/ | cut -d/ -f2 | uniq -c | sort -k2 | awk '{print ($1-1)"\t"$2}') | sort -nk2
Sample output:
Size Files Directory
172M 36 callrecords
17M 747 manual
83M 2251 input
7.5G 16867 output
Explanation:
Add the header:
echo -e "Size\tFiles\tDirectory";
<(COMMAND) is a structure which allows the output of a command to be used as if it were a file. Paste takes 2 files, and outputs them side by side. So we are pasting together the outputs of two commands. The first is this:
<(du -sh ./*/ | sort -k2 | cut -f1)
Which simply finds the size of subfolders of the current folder, summarising anything inside. This is then sorted according to the names of the files/folders, and then the first column is taken. This gives us a list of the sizes of subfolders of the current folder, sorted by their name.
The second command is this:
<(find ./*/ | cut -d/ -f2 | uniq -c | sort -k2 | awk '{print ($1-1)"\t"$2}')
This is similar to your original command - it finds folders below the current directory, truncates the names to include only the first sublevel, then counts them to give a list of sub-folders of the current folder, and the number of files within each. This is then sorted by the folder names, and the awk command formats the results and also subtracts 1 from the file count for each folder (as the folder itself is included). We can then paste the results together to get the (almost) final output.
Finally, we use sort -nk2 on the output of the paste command to sort by number on the 2nd field - ie the number of files.