Fedora :: How To Limit The Number Of Files In A Particular Directory
Aug 31, 2011
I was nosing around in my /home folder and I noticed that the /.thumbnails directory had 38,000+ files in it. That number seem a bit excessive to me. Is there a way to limit the number of files that are allowed to be in that directory, and maybe delete the oldest files automatically when the directory reaches it's limit in order to make room for the new incoming files, so there are no "directory full" type of errors?
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Apr 28, 2011
If there is any maximum allowed number of files per folder in linux (without risking it to lose everything).
I am using openuse 11.4 with latest kde (4.6?).
I am trying something fast and dirty and it might be that one folder will contain like 10^6 files.
Is there is anything I should be warned about that? Of course filesystem security is still the most important.
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Feb 22, 2010
i need to know how to find number of files in a directory? is there any system calls in fedora 12.And i need to know how to perform a operation if the that count increases by one?
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Feb 10, 2010
I've a directory containing around 2.8 lacs of files. I want to move them to another directory.If I use cp or mv then I get an error 'argument list too long'. If I write a script like
for file in ls *; do
cp {source} to {destination}
done
then because of ls command , its performance degrades.How can I do this?
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Jul 5, 2011
I want to count the lines of all files in this directory and all its subdirectories, but exclude directories "public", "modules", and "templates".
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Oct 15, 2010
What command will provide you with the number of files in your current directory?
Choose one answer.
A. ls -c
B. ls | wc -w (this one)
C. ls -n | count
D. ls -wc (this one ?)
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Dec 13, 2010
Dist: Fedora 14
SSHD: OpenSSH 5.5p1
I need to limit the number of ssh connections a user has. All the users are using tunnel only so their shell is set to /sbin/nologin The logins do not open a shell they just create the tunnel so /etc/security/limits.conf has no effect on them at all.
I tried setting 'MaxSessions 1' in sshd_config but either that doesn't not do what I expect it to or it plain does not work as even with a normal user I was able to open an unlimited number of sessions. I need a good secure way to limit each user to 1 ssh session without them having a shell but Im unable to find a solution.
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May 6, 2010
I have a server with 48 cores, 8 6-way Opteron CPU's. Ubuntu Server 9.04 only sees 32 processors. Is there a limit on the number of cores/processors that the server will use? Windows 2008 on the same server sees all 48 cores and the so does the BIOS, so this is unique to Ubuntu right now.
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May 19, 2009
I'm looking for a solution for sendmail to limit the number of emails send per miniute per IP. For example all my local computer user with ip 192.x.x.x need to able to send 10 emails/minite (emails, not connections!. The rest of the world can send for example 200 emails/minute to the mailserver. If the amount of emails per minute is exceeded, sendmail needs to block receiving emails from the spesific IP. I want to do this to stop spaming from my local network. Is it possible?
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May 3, 2011
I ran into a user today that indicated that their company only allows them to log in through a terminal session once (no multiple logins). On second try their login window terminates. They are using putty.Is this being accomplished through PAM or sshd ( or some other method)?
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Mar 2, 2011
I have a file with 200 000 lines and I want to append the fields of each line based on matching first field. The resulting file should have 70 000 columns but has "only" 18 000. The command I'm using is working perfectly with a smaller file, wich lead to 14 000 columns. Could there be a limit in number of fields that awk can handle ? Here's my awk command :
Code:
awk -F, 'END { for (k in _) print _[k] } { _[$1] = $1 in _ ? _[$1] FS $4 : $1","$4 } ' file > out
Also, this command writes ^M (windows line break) after each columns. Removing them is easy but where do they come from ? Working on Ubuntu 10.10
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Jun 22, 2010
Does anyone know if there is a limit to the number of virtual guests you can have in kvm. RHEL has a limit of 4. RHEL AS is unlimited. What is CentOS?
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Apr 7, 2011
I am trying run audio conversion on my server that I want limited to a certain number of processes based on process name. I am using the following script but it isnt limiting the number of job like I want it to.
Code:
#!/bin/bash
$num_jobs = 13
while [ $(ps -A | grep -v grep | grep -c pacpl) -ge $num_jobs ]
do
sleep 1
[Code]...
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Jan 18, 2010
I have a standard home set-up for my Ubuntu OS, and I would like to know whether its possible to cut out the repetitive prompts to enter the password, as when you connect to the internet or access files on a partition that's not home, or install new software.
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Feb 1, 2011
I am using ssh server to connect to my Ubuntu desktop. I opened the file sshd_config and change my port number of the server.I want to put a limit on the number of clients in the ssh server.
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Sep 5, 2010
How to number of connections for a single ip on port 80 to CentOS 5.5 with iptables? connlimit did not work on CentOS and nginx does not provide a module for that
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Jul 28, 2010
except is there is a way to enhance mod_limitipconn.c to ensure that apart from restricting one connection allowed from a given IP, also set so that an IP can only connect on every set interval ?e.g.restrict the number of connections from a given source IP to say once every 5 minutes or so?if not mod_limitipconn.c, any other mechanism to do the expected result?
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Dec 6, 2010
I was searching around and I stumbled upon a Linux Kernelix Sockets Local Denial of Service exploit.I downloaded the exploit, compiled it ran it to check if I am vulnerable.As I was expecting, the exploit instantly "killed" my Maverick system and I had to use the power button to reset my computer...Is there any way to limit the numberof allowed open sockets?I don't think that this can be done using /etc/security/limits.conf in a similar way of preventing the fork bombs
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May 2, 2009
We've been experiencing sudden host server crashes minutes after starting a fourth virtual machine. Our setup looks like:
Dell Poweredge T300
1 x Intel Xeon X3323 Quad Core 2.5 ghz
16 GB Ram
CentOS 5.3 (64 bit)
Server is running a stripped down version of CentOS 5.3 (64-bit), running only the built-in Xen Virtualization Environment. There is no other services running on the server (not samba, httpd, sendmail, cups... nothing except Xen) We've created several virtual machines, and as long as we don't start a fourth virtual machine everything runs smoothly (impresive hardware).
Each virtual server is configured as:
PARAVIRTUALIZED
1 Virtual CPU
1 GB RAM
However, 5 minutes or so after starting a fourth virtual machine, the entire host server crashes and restarts itself. Are we limited by the number of cores on the host machine CPU (4 cores)? 1 for the host and 3 for virtual machines? We've read in forums about other Xen setups running up to 11 virtual machines on less powerful hardware? (a dual core server). Should we be using FULLY VIRTUALIZED virtual machines instead? Is the number of XEN virtual machines in fact limited by the number of cores? If so, how can someone run several virtual machines on a single core host?
By the way, we were replacing a previous Dell Server (Poweredge 2600 with 512 MB Ram and a single Xeon single core processor running Open Virtuozzo). We were able to run up to 16 virtual machines at the same time. Of course none of the machines endured hard work (testing environments, etc). But hey, my point is that we expected to get a much higher number of virtual machines on this new hardware.
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Mar 2, 2011
I have 2 directories in my home folder that I would like to set a size limit on. The directories are ~/backup and ~/temp. Is there an easy way to limit the size of a directory without having to make partitions?
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Aug 1, 2009
i want to copy a few files from my windows directory into the wine directory - its no big deal, just a few preference files so i dont have to set something up all over again. trouble is, i had the files copied, but i cant find the wine/ c: drive directory anywhere, anyone know where this can be found??
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May 26, 2010
Is there a limit to the number of files ext3 can support?
Reason I'm asking is because on one of my internal drives, I have around 750,000 files. The drive is 500Gb and currently using 150Gb... I noticed recently that when I try to copy a new directory or file, the transfer rate is extremely slow at times. It is sataII and sometimes it gets as low as 500kb/s (yes, kb!)
Would somebody please shed some light?
I noticed it might be related to the process gvfsd-metadata
I'm using Fedora 12 64-bit
The transfer is from an ext3 to ext3 filesystem.
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Jun 24, 2010
The other day, I needed to send the bank few signed documents (~40 pages). Scanned the signed documents in jpg format and wrote up this script to make a bound pdf. I find it quite useful- have fun.
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Oct 12, 2009
Is there any way to limit x number of samba users by samba ? Say if there are already 5 samba users using the share, I would like to restrict any futher samba requests.. How do i do that ?
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Aug 3, 2011
Im new to linux and would like help or to be taught. My question is how do i limit users to their own directory for an example User andrew /home/andrew cant acess root or usr
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Feb 1, 2011
I need to add another user besides the one set up during the installation procedure but I also need to limit all users to use only their own /home/user directory.
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Jun 30, 2011
How would i go about copying files to a directory, yet skip the files that already exist in the directory, and also remove the files that are in the directory. For example:
Code:
$ls /dir1
img001.jpg
img002.jpg
[code]....
Now i would like to copy from dir1 to dir2, but the contents of dir2 would be:
Code:
$ls /dir2
img003.jpg
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Apr 21, 2010
We recently had a serious loss of data because of SSHFS mounting. A user in our group mounted the entire home directory of our server (/home). This was so they could easily move between user folders to read/write data from other people involved in the same project. They then deleted several folders that were not in there home directory.
Now I know this is a bad idea and that there should be a dedicated "projects" folder where everyone collaborates and does their stuff. Such a folder/system exits but I can't make them use it. My question: Is there anyway to configure SSHFS such that the only thing the user's can mount is their home directory? Obviously this won't fix the problem since they can sym-link to other folders but I've got to start somewhere. Perhaps there's a better solution (one that doesn't involve me nagging users about proper form).
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Jun 16, 2011
I am using the diff command with the -r option, to compare a large number of files and files in subdirectories. My main interest is to find out which files have been changed, and not what the actual changes are, and since a lot of files has been changed, it would be a lot easier to view the file names only. Is there and option for diff that might do this, or does there exist a similar tool/command that could do the job?
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Nov 14, 2010
There are millions of files in many directories. Wherenver i try rm * or find or use xargs, they say 'argument list too long' and exit. How can i deleted files in a directory with so many files without deleting the directory itself.
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