list size of folders and their changed date

Question

How can I list the size of folders as well as their changed date?

I am able to get the size of folders using du. I am also able to list the folders together with their date using

$ls  -ltr $path |  grep '^d'

But I cannot display the size and the date together.

ls -h or stat do not work for me.

Are you after a du-style sizing with modification time, or an ls style "directory size"? — Sobrique, Dec 22 '15 at 12:35

score 6 · Answer 1 · edited Dec 22 '15 at 13:29

6

On a GNU system, man du reveals --time argument:

du -h --time .

which for directories shows the time of the last modification of any file in the directory, or any of its subdirectories.

edited Dec 22 '15 at 13:29

Stéphane Chazelas

544,893

answered Dec 22 '15 at 12:42

Joe

544

--time is not available for my version – user148335 Dec 22 '15 at 12:45
Maybe something like find . -type d | xargs -I'{}' bash -c "stat --printf='%y ' {} & du -sh {}" – Joe Dec 22 '15 at 12:48

Sobrique · Answer 2 · 2015-12-22T14:29:27.193

1

Don't parse ls it's bad juju. My first start would be - use perl:

#!/usr/bin/env perl
use strict;
use warnings;
use Data::Dumper;

for ( grep { -d } glob ( "*") ) {
    print join ( "\t", $_, -s, (stat)[9] ),"\n";
}

But this of course, just takes the inode side of the directory, which is probably not what you want. So instead ... actually our easiest might actually be to call du anyway.

for my $dir ( grep { -d } glob ( "*") ) {
    print join ( "\t", (stat $dir)[9], `du -sh $dir`,  );
}

Or perhaps making use of the Filesys::DiskUsage module.

But as a one liner:

perl -e 'for ( grep {-d} glob ( "*" ) ) { print join "\t", (stat)[9], `du -sh $_` }'

Edit: With formatted timestamps:

perl -MTime::Piece -e 'for ( grep {-d} glob ( "*" ) ) { print join "\t", Time::Piece->new((stat)[9])->strftime("%Y-%m-%d"), `du -sh $_` }'

Edit: Version older than 5.9.5 (which you should really consider upgrading, given it's well past EOL):

perl -MPOSIX -e 'for ( grep {-d} glob ( "*" ) ) { print join "\t", strftime("%Y-%m-%d",gmtime((stat)[9]))), `du -sh $_` }'

edited Dec 22 '15 at 14:29

answered Dec 22 '15 at 13:27

Sobrique

4,424

perl works great it would be useful to display the seconds in a readable format (for example in mm-dd-yyyy). I have tried to add "+%m/%d/%y" to (stat)[9], but it does not work – user148335 Dec 22 '15 at 14:13
Easy enough. Added. – Sobrique Dec 22 '15 at 14:18
not so in my case :( - Can't locate Time/Piece.pm in @INC .... Is there a way to maybe download it ? – user148335 Dec 22 '15 at 14:24
Yes, but it's been core in perl since 5.9.5 - which is quite an old version. You could probably use POSIX instead though. – Sobrique Dec 22 '15 at 14:28
now it works , after removing one extra parentheses from strftime("%Y-%m-%d",gmtime((stat)[9]))) – user148335 Dec 22 '15 at 14:36
with the mention that it only works if the folder name does not contain SPACE – user148335 Dec 22 '15 at 14:57
the du part, yes. The stat should work fine though. – Sobrique Dec 22 '15 at 16:04
Can always wrap directory name in double quotes it this prospect bothers you. – Sobrique Dec 22 '15 at 23:25

list size of folders and their changed date

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