The operating system /var log files I typically would not remove.
Before attempting to remove any of them, I would ask the operating
system experts if it would be safe to do so. For Ubuntu for example, I
think those experts would be over in the Ubuntu forums at [1].
The 15 GB is quite large such that I wouldn't expect the operating
system with default logging to instantly cause that but get larger more
gradually over time.
The du command [2] you might find helpful. Below is an example.
First, I looked at the directories in the root folder for seeing which
ones were using the most drive space:
username@computername:~$ sudo du --exclude=/proc --exclude=/run -csh /*
0 /bin
197M /boot
4.0K /cdrom
0 /dev
14M /etc
2.6G /home
0 /lib
0 /lib32
0 /lib64
0 /libx32
16K /lost+found
44K /media
4.0K /mnt
4.0K /opt
56K /root
0 /sbin
3.7G /snap
4.0K /srv
2.1G /swapfile
0 /sys
164K /tmp
6.6G /usr
3.2G /var
19G total
In my case, I'm storing my WIEN2k calculations under
/home/username/wiendata and have my SCRATCH set to the case folders
(with ./) that I put in that directory:
username@computername:~$ grep wiendata ~/.bashrc
alias cdw="cd /home/username/wiendata"
export W2WEB_CASE_BASEDIR=/home/username/wiendata
username@computername:~$ grep SCRATCH ~/.bashrc
export SCRATCH=./
I can check the space of just the /home directory with:
username@computername:~$ du -csh /home
2.6G /home
2.6G total
I see 2.6 GB of space is being used.
I check what I have under my home directory:
username@computername:~$ ls /home
username
There I see I only have one user account, which is named username.
I check how much space is being used by username:
username@computername:~$ du -csh /home/username
2.6G /home/username
2.6G total
Next, I check under /home/username to see what the 2.6 GB consists of:
username@computername:~$ cd /home/username/
username@computername:~$ du -csh * .[^.]*
4.0K Desktop
4.0K Documents
4.0K Downloads
4.0K Music
4.0K Pictures
4.0K Public
124M snap
4.0K Templates
4.0K Videos
1.5G WIEN2k
180M wiendata
4.0K .bash_history
4.0K .bash_logout
4.0K .bashrc
130M .cache
176K .config
12K .gnupg
697M .local
4.0K .profile
4.0K .ssh
0 .sudo_as_admin_successful
4.0K .wget-hsts
2.6G total
I see my WIEN2k installation is using 1.5 GB of the 2.6 GB used. My
wiendata is currently only using 180 MB.
Looking in my wiendata folder, I currently only have one case
calculation named Al:
username@computername:~$ ls /home/username/wiendata/
Al
I find it is taking the entire 180 MB:
username@computername:~$ du -csh /home/username/wiendata/*
180M /home/username/wiendata/Al
180M total
To display how much is used under the /home directory in MB, I use:
username@computername:~$ du -csh --block-size=M /home
2624M /home
2624M total
I want to move the Al directory from the computer to my USB connected
external storage drive similar to what you described. First though,
since my storage drive has a Windows NTFS partition, I have to rename
the :log file to avoid a transfer error and I chose to name it log.txt:
username@computername:~$ mv /home/username/wiendata/Al/:log
/home/username/wiendata/Al/log.txt
Creating an archive (.tar) or compressed file (.zip) of the Al directory
would have been an alternate solution that would not have required
renaming of the :log file.
I transferred the entire directory to my USB connected flash drive
(mounted at /media/username/1A50-FE2F/Al) using a mv command in the bash
terminal:
username@computername:~$ mv /home/username/wiendata/Al
/media/username/1A50-FE2F/Al
I rechecked wiendata directory after that and see the Al file is gone
(i.e., was transferred successfully):
username@computername:~$ ls /home/username/wiendata/
I check the space of /home again:
username@computername:~$ du -csh --block-size=M /home
2445M /home
2445M total
I see that the used /home space dropped 179 MB (= 2624M - 2445M). The 1
MB could be due to rounding error or other active processes going on the
system taking it, but I was essentially able to get an entire 180 MB of
free space back for this case as expected.
[1] https://ubuntuforums.org/
[2]
https://www.tecmint.com/check-linux-disk-usage-of-files-and-directories/
On 4/27/2024 11:23 AM, shamik chakrabarti wrote:
Sir, also it is showing 139 Mb however my device space get decreased
by almost 15 GB
On Sat, 27 Apr 2024 at 22:51, shamik chakrabarti
<shamik15041...@gmail.com> wrote:
total 139M
4.0K drwxr-x--- 28 shamik shamik 4.0K Apr 26 23:48 .
...
4.0K drwxrwxr-x 2 shamik shamik 4.0K Jun 26 2023 WIEN2k
On Sat, 27 Apr 2024 at 22:48, Peter Blaha
<peter.bl...@tuwien.ac.at> wrote:
ls -alsh
Am 27.04.2024 um 17:57 schrieb shamik chakrabarti:
Dear Prof. Gavin,
Yes, wien2k is installed under the /home
directory. I have also checked /var. there are log files as
mentioned in your reference [1]. In this regard, which files
should I remove to recover the lost spaces?
with regards,
On Sat, 27 Apr 2024 at 17:42, Gavin Abo <gabo13...@gmail.com>
wrote:
If your WIEN2k cases are located somewhere under the
/home directory, is this the directory you are seeing the
space increase in?
If your looking at the space of the entire storage drive
before and after the calculation, another possibility is
the increase could be due to normal usage logging by the
operating system. So, if its the /var you are seeing
increase after the calculation, it could potentially be
due to that as log files could be stored there as seen
for example at [1].
[1]
https://ubuntu.com/tutorials/viewing-and-monitoring-log-files#2-log-files-locations
Kind Regards,
Gavin
WIEN2k user
On 4/26/2024 10:52 PM, shamik chakrabarti wrote:
In that case, after deleting the case directory, the
space in hd of Linux should be recovered. But the space
is decreasing every time, I ran some calculations and
after copying delete the whole directory.
On Sat, 27 Apr 2024, 01:48 Tomas Kana, <k...@seznam.cz>
wrote:
The dot and slash ./ means your current directory
Dear Sir,
After echo $SCRATCH the output is: ./
Any comments
On Fri, 26 Apr 2024 at 22:14, Peter Blaha
<peter.bl...@tuwien.ac.at> wrote:
During userconfig you have specified a
SCRATCH directory. Only
you can know what you did there.
PS: echo $SCRATCH will tell you, what you
specified.
Am 26.04.2024 um 13:30 schrieb shamik
chakrabarti:
Dear Wien2k users,
After running
calculations I am saving
the data in external hdd while deleting
the same from linux.
However, at each time, after deleting
data, I have found that
some amount of spaces are not recovered.
Wien2k is saving some
files in Linux which I am not able to delete.
My query is where are those extra files are
stored? Whether
there is some directory called as _scratch
but then I am not
able to find it either?
Any response is eagerly awaited.
with regards,
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