This tag is for questions about hard disk space usage.

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2
votes
2answers
34 views

Is it safe to empty /usr/share/doc?

I don't need the man pages and documentations on my debian server. Is it save to empty that folder completely to free up some disk-space, by replacing all files in that folder with empty dummy files. ...
0
votes
1answer
9 views

removing clamav with purge leaves database

I uninstalled clamav with apt-get remove --purge clamav but still I have this 100MB folder: du -shc /var/lib/clamav Why is this not deleted on purge? And how can I find out if some other ...
4
votes
0answers
41 views

Fixing terrible performance when watching/reading video and writing video files to disk

I have had this issue for quite some time and tried many times to fix it on my own and it always fails. IP schedulers, ionice and things like that always yield no result. I even went and bought an ...
1
vote
1answer
25 views

System reports almost no space available, but the totals don't add up

I'm running Debian 6.x df -h tells me this: # df -h Filesystem Size Used Avail Use% Mounted on /dev/sda1 19G 17G 696M 97% / .... But these numbers don't add up... # ...
2
votes
1answer
573 views

How to monitor per user disk usage in Linux

I have local disk with 2T capacity attached to a host. Nearly 60 user home directories are stored on this disk. Currently no disk quotas are enabled. I need monitor the disk usage of individual ...
50
votes
1answer
2k views

Why are there so many different ways to measure disk usage?

When I sum up the sizes of my files, I get one figure. If I run du, I get another figure. If I run du on all the files on my partition, it doesn't match what df claims is used. Why are there so many ...
4
votes
3answers
12k views

Shell script to send an alert mail if disk usage exceeds 90%

I am new to shell scripting and want to implement a script on my server which will automatically send email alerts if the disk usage goes over 90% and second email alert when it goes over 95%. My ...
3
votes
2answers
287 views

What does “1K-blocks” column mean in the output of `df`?

What does "1K-blocks" column mean in the output of df? $ df Filesystem 1K-blocks Used Available Use% Mounted on /dev/sda7 21181308 19302672 802668 97% / udev 4070176 ...
8
votes
4answers
2k views

Directory size calculation difference

I need to get the size of directory in terminal for signing purposes. I'm using following command: du -s /path/to/dir I'm multiplying the result by traditional UNIX block size (512 bytes) and get ...
42
votes
4answers
30k views

Reserved space for root on a filesystem - why?

I understand that by default, newly created filesystems will be created with 5% of the space allocated for root. I also know you can change the defined space with: tune2fs -m 1 /dev/sdXY What I'm ...
1
vote
2answers
1k views

RedHat Linux Space Usage Problem

I recently downloaded something on my Redhat Linux computer, and it told me I was out of space. I checked my disk usage, and it says I've used 100% of my folder, but as you can see I still have almost ...
1
vote
2answers
809 views

root partition getting full with nfs mounted directory [closed]

I am having one nfs volume, which is mounted on one of the directory of root partition. My problem is when I checked df -ha it adds up mounted directory file content as well. Following are my ...
4
votes
2answers
63 views

How do I get the old `du` behaviour back?

Trying to move stuff around on my server (Ubuntu 12.04) I wanted to know the size of each of the subdirectories of the current directory and the total for the current directory using du: $ du -sm * . ...
17
votes
7answers
31k views

How do I count all the files recursively through directories

I want to see how many files are in subdirectories in there subdirectories to find out where all the inode usage is on the system. Kind of like I would do this for space usage du -sh /* which will ...
3
votes
1answer
41 views

du -s --apparent-size VS du -s

Can someone tell me the differences from: du -s dir 3705012 dir du -s --apparent-size dir 3614558 dir these dirs are inside a block device (created using cryptsetup). Or better: why I need add ...
1
vote
1answer
33 views

How to collect disk read/write activity over a given period of time?

Sometimes, especially upon login, I have a lot of disk activity. I can use iotop to see what's doing that at a given moment, but I would like to have an integral table over a given time, say the first ...
5
votes
3answers
620 views

What's the rationale to have option to use power of 1000 instead of 1024 in df?

I'm curious about df -H and df -h, then man df tells me: -h, --human-readable print sizes in human readable format (e.g., 1K 234M 2G) -H, --si likewise, but use powers of ...
2
votes
2answers
47 views

Combine output from df -h /dev/xvda1 into a single line

I want to convert the 2 line output from df -h into a single, meaningful line i.e. Take [root@ip-10-42-1-246 tmp]# df -h /dev/xvda1 Filesystem Size Used Avail Use% Mounted on /dev/xvda1 ...
26
votes
9answers
9k views

How to understand what's taking up space?

I'm looking for a linux alternative to WinDirStat. I would like to know what is taking up space on my hard drives. A program that works on console and doesn't require a UI is preferred .
12
votes
1answer
4k views

Print size of directory content with tree command in tree 1.5?

I like tree it's a nice way to display my files and the size of folders/directories. But the -h option only shows the size of the directory, not it's contents. /media/ ├── [ 16K] 64D9-E862 │   ├── ...
49
votes
11answers
24k views

how do you sort du output by size?

How do you sort du -sh /dir/* by size? I read one site that said use | sort -n but that's obviously not right. Here's an example that is wrong. [~]# du -sh /var/* | sort -n 0 /var/mail 1.2M ...
0
votes
2answers
52 views

How can I recover disk space shown by the difference in disk usage between ls and du

I have a one Terabyte external hard disk drive that I intend (should have done this long ago) to use for backups, and I have done a lot of experimenting to get my mind round it. When I looked again ...
2
votes
3answers
67 views

How to know list of directories under a filesystem?

If I run sudo df -h command, I got below output: Filesystem Size Used Avail Use% Mounted on /dev/sda2 12G 9.5G 1.1G 91% / /dev/sda4 3.8G 1.5G 2.1G 41% /home ...
0
votes
1answer
111 views

How to clean up the rootfs partition or increase the size

Can't figure out how I should clean up my rootfs partition. It's 95% used, with total of 9.1G in space. Isn't that much for a root partition? This is my ouput of df -h command: /# df -h ...
3
votes
2answers
169 views

How to show only total file size of particular extension by `du` command

I have a hundreds of pdf files and html files in a directory. And I want to know total size of pdf files. By command du -ch /var/foo I can see total file size but I only need last line, the total ...
0
votes
1answer
1k views

“bash: cannot create temp file for here-document: No space left on device”

My / only has about 800MB free space left. I guess it is the reason that $ convert * book.pdf Segmentation fault (core dumped) bash: cannot create temp file for here-document: No space left on device ...
3
votes
4answers
370 views

Which directory is taking up the most space

Jenkins has stopped building and I can see from df: that /var is maxed. Following this I can see the culprit is /var/lib/jenkins 52K alternatives ... 4.0K games 2.3G jenkins <--this ...
7
votes
3answers
709 views

How to recompress 2 million gzip files without storing them twice?

I have about 2 million (60GiB) of gzipped small files and I would like to create a compressed archive containing all of them in an uncompressed version. Unfortunately, I cannot just uncompress them ...
8
votes
6answers
12k views

Finding files that use the most disk space

Is it possible to list the largest files on my hard drive? I frequently use df -H to display my disk usage, but this only gives the percentage full, GBs remaining, etc. I do a lot of data-intensive ...
1
vote
1answer
33 views

du -sh on a new directory gives different results in different locations

Here's what happened when I created a new directory and immediately ran du on it. There are no contents in this directory. me@mybox[~]$ mkdir /scratch/test2 me@mybox[~]$ du -sh /scratch/test2 4.0K ...
1
vote
0answers
44 views

What is the most elegant way to limit /tmp?

Recently I was struck by this tricky bug. In it, /tmp gets overflowed with symlinks until the system runs out of inodes. What is the best way to be sure that this can never happen again? I'd like to, ...
3
votes
1answer
85 views

Find the total disk usage not including files containing a string

I am trying to get the disk usage of the owncloud directory except not including the files and dirs containing the string nobackup in the name/dir. This is my command so far : find . -type f -not ...
1
vote
3answers
737 views

the difference in used hard drive space as shown by df and du is HUGE! [duplicate]

It seems that du discounts the #open files when calculating the disk usage, and this hit me when I saw that df is showing 100% usage, while du says only 40% is in use. when i looked up on this, i ...
0
votes
1answer
61 views

why are /media and /home /mnt/home so large?

I am trying to get hplip-3.14.10 on a desktop. I found out that the setup returns a make command failed with status code 2 which is caused by insufficient disk space. I used disk usage analyzer to ...
1
vote
2answers
59 views

du command combined with find -mmin

I want to have an idea of how much archivelogs the database is generating daily, so I did: find /u02/archivelog -mmin -1440 | du -sh and got 220GB, which is the total size of all files in that ...
0
votes
2answers
46 views

Disk usage on another filesystem

I have a directory on my ext4 partition with lots of rather small files. How can I figure out how much space would they use if I copy them to a file system with another cluster size (without actually ...
4
votes
1answer
220 views

File size shown by “du -k” is different in different file systems (PRAMFS and FLASH)

I have a file xyz.log which is of size 1.72MB. In FLASH file system: If I run du -k xyz.log output is 1761 xyz.log. I copied the same file to RAM storage and run the du -k xyz.log output is 221 ...
0
votes
1answer
129 views

du (disk usage) and format specifier for file/directory sizes strings?

I am really fond of du, and I often like to use it like this: $ du -hsc /var/mail/ /var/log/ 2>/dev/null 4,0K /var/mail/ 5,7M /var/log/ 5,7M total However, I'd like to be able to ...
1
vote
1answer
74 views

Format USB drive

I have a USB drive which I format with sudo mkfs.vfat -I /dev/sdb1 When I then look at the size of the USB drive with df -h, it reports its size to be 64 MB, though it should be 8 GB. What am I ...
0
votes
2answers
123 views

Different sizes after copy [duplicate]

I would like to copy for backup porposes a Linux user home directory with several GBs of data and the usual configuration files. The source directory and the backup directory should exactly have the ...
1
vote
1answer
66 views

Cannot use free space in filesystem

I want to install a program but it says that there is not enough free disk space more than 11 GB although there is. df -h shows: Filesystem Size Used Avail Use% Mounted on ...
0
votes
3answers
66 views

mysqld is not starting up anymore due filled disk [duplicate]

How to clean logs or find largest files and reduce the space? also i do not understand 1.7T is not even used in this critical moment. Mysqld is not running because 99% is used. # df -h Filesystem ...
0
votes
1answer
66 views

Filesystem and mount point

I am confused with which path should I give to store the file. host# df -h Filesystem Size Used Avail Use% Mounted on /dev/xvda2 ...
0
votes
1answer
52 views

List the size of subdirectories only considering pdf files

I've tried to list the size of subdirectories of the directory home just taking the files with pdf extension. I tried the next ls $home -d /* | xargs du -sb --exclude="!(*.pdf)" Is there any ...
2
votes
2answers
158 views

How to make system file partitions larger without reinstalling

I'm a complete beginner with any Linux distro and I recently picked up SteamOS. SteamOS I believe is Debian based. I wiped the laptop and got it installed nicely. When I started moving my music over ...
14
votes
7answers
55k views

Tell fs to free space from deleted files NOW

Is there a way to tell the kernel to give back the free disk space now? Like a write to something in /proc/ ? Using Ubuntu 11.10 with ext4. This is probably an old and very repeated theme. After ...
1
vote
3answers
342 views

“grep” the available space from “df” output

Hello I need to grep the output from df. Sadly awk is not an option (even though its the easy option) here I can only use grep. Filesystem 1K-blocks Used Available Use% Mounted on none ...
3
votes
4answers
10k views

In CentOS, how to find free disk space?

In CentOS and Ubuntu, how do I find out how much free disk space I have left and other disk stats like disk usage?
2
votes
1answer
81 views

Why are du some options not available

I have been using bash on my Synology NAS (which runs BusyBox). I recently needed to reinstall the OS. Now a script I have that uses du to generate a file containing folder sizes fails because du now ...
1
vote
2answers
148 views

How to reduce disk access?

This is a follow-up question to How to reduce temperature on a Dell XPS (L502X)?. After reading the answer, I noticed that my harddrive is spinning constantly, even when running TLP in bat-mode ...