General :: Running DF Command - Huge Space Between Columns
Jul 13, 2011
I am running the command on a Mac but due to it being a generic unix command and a command line query.. I thought I can write on this forum.. I am running the command
Code:
df -h | grep '/dev/'
I get
Code:
/dev/disk0s2 389Gi 62Gi 327Gi 16% /
/dev/disk0s3 76Gi 24Gi 52Gi 32% /Volumes/Backup
/dev/disk3s2 500Gi 47Gi 453Gi 10% /Volumes/Misc
Note the huge space between the 1st and 2nd Column..
This is because currently I have some NAS drives mounted which are not showing due to grep. When they are not mounted. The output is fine with equal spaces between each column (like between col 2 and 3.. or 3 and 4). I want to do a (dare I say) sed or awk or something to reduce the space between 1st and 2nd col. So that it has space like between col 3 and 4.. or 2 and 3. This is because I am showing this output somewhere and because of the space its not showing up correctly.Also I hope the command will still work when the NAS drives (afp) are not mounted.. basically consistency. The spaces are not showing properly in the quote tag. Changed it to CODE tag.
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Feb 2, 2011
I started getting errors about running out of disk space in root this morning. I hunted up what's taking all the space; var/log is 39GB (Ubuntu is installed on a 50G partition.) It's specific files that live in that directory, not subfolders. The files are:
kern.log = 11.6 GB
messages (plain text file) = 11.4 GB
kern.log.1 = 6.1 GB
[code]...
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Dec 15, 2009
I am a both rhel5 and fedora user.I can not configure my Samsung syncmaster 632nw monitor to display full screen at 1360X768.There is huge black space both left and right side of the monitor. I have tried many times to solve it but unable to do it.The max screen resolution is 1024*768 and minimum is 640*480.
Here is the xorg.conf file:
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Jun 2, 2010
I'm pretty sure this is super simple, but I've searched and searched and for the life of me I can't find any info on how to limit the columns that display in the interactive top program with arguments passed from the command line. I recall seeing something formatted like this ...
~/top -f (kdx)
Which would only show the %CPU, UID, program name fields/columns. I'd like to display the results in a really narrow terminal window on the right side of my desktop.
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Jan 24, 2011
I use a program which makes a large image which I have to scroll to view. The program has no way to save the image, and I have no access to the source to modify it. The only way I have to get the image from the program is by screenshot. My goal is to save the full size image without having to piece together individual screenshots. I'm using this script to try taking a screenshot:
#!/bin/bash
window=$(wmctrl -l | grep "Program$" | awk '{print $1}')
wmctrl -v -i -r $window -e '0,0,0,6030,5828'
wmctrl -i -a $window
import -window $window ~/Desktop/screenshot.png
This uses wmctrl to get the window id ($window) for a window named "Program". It then tries to resize the window to the desired dimensions. It uses imagemagick (import) to save a screenshot.png on the user's Desktop. All of this works except the resize step. I can resize the window using wmctrl -r -e, but sizes greater than the screen size don't work. I'm using Ubuntu 10.04 and the Gnome Desktop. I run two monitors, but I've tried this with one of them disabled. Is there a way to resize the window larger than my screen to get a huge screenshot?
Part II: I tried using xrandr to set up screen panning, so as to have a bigger desktop than my monitor. xrandr --output LVDS --panning 2600x2500 This command makes the laptop screen pan over a 2600x2500 size desktop, even though it can only show 1440x900 at one time. To turn off the panning, I can use a similar command to set total size and with zeroes for the panning section. This gives me back my original laptop display behavior. xrandr --fb 1440x900 --output LVDS --panning 0x0 This is all done with xrandr, and does not require any Xorg.conf changes (my Ubuntu system doesn't even have an Xorg.conf).
My video card seems to only allow about 6.5 million pixels, even though the maximum dimensions are 8192x8192. That maximum seems to be the maximum for either dimension, but there is a limit to how many pixels can be drawn, which is the width multiplied by the height. Once I did the screen resize, I tried my script again and got a screenshot. The screenshot however is totally scrambled. I'm not sure if it's unable to take a screenshot of an off-screen window or if it is unable to handle the large dimensions of the window. With the panning display, the window should think it is visible, and the window manager should think it is on-screen. So there is a pixel buffer somewhere with those pixels in it, so there should be a way to get a screenshot.
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May 18, 2010
I examined the problem, and determined that a huge amount of disk space is being taken up by files in /var/log/ The following files:
Code:
/var/log/messages.1
/var/log/kern.log.1
/var/log/daemon.log.1
/var/log/messages
/var/log/kern.log
/var/log/daemon.log
/var/log/syslog
are all over 1 GB in size. The largest is 18 GB. Together, they total 48.3 GB. I restarted the system, forcing a fsck.
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Sep 7, 2010
My /var/ partition continues to fill up on all my servers, and it is because the logs in /var/log/apache2 or /var/log/mysql are being deleted during log rotate, but their file handles are being held open. Thus, a "du -sh /var/log" shows the correct values, but "df | grep /var" shows something much different.
It seems that the log files rotate, however if I run "lsof | grep deleted" it returns lots of files that are no longer visible in the directory, however refuse to clear themselves off the disk.
The only way I have found to make these log files go away (and thus clear up the disk space on the partition I should have) is to restart either apache or mysql, depending on which process has huge sized log files being held open.
Is it just me, or is this a big flaw in the way linux works, that it can't figure out how to release file handle for a log so the disk space can be reclaimed? This is happening to me a lot lately.
Here is some output from one of my web servers so you can see what I am seeing...
root@web49:~# df -h | grep /var$
Filesystem Size Used Avail Use% Mounted on
/dev/sda8 9.2G 6.1G 2.7G 70% /var
root@web49:~# du -sh /var
[Code]....
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Feb 28, 2010
I tried playing a DVD several times and each time, after opening in Movie Player on Ubuntu 9.10, it froze up, I forced quit and then I noticed a huge reduction in free disk space on my root (/) directory. Has this happened to anyone else?I figure I Movie Player probably saved some temp files somewhere on hard disk and wasn't able to clean them up since I had to force quit. Any thoughts about how to clean this up and take back that previously free space?
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Apr 23, 2011
I installed Ubuntu 10.10 with wubi and i have been enjoying my Ubuntu experience a lot. I installed quite a bit of programs and spent a couple hours customizing my machine. The problem is im running out of disc space. Any ideas on how i can add more space. I have gparted but i dont know where to move the free space to because wubi installed it.
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Jul 27, 2011
I recently installed Linux Mint alongside Win 7 and following the instructions , I created seperate / and /home partitions. The more applications i install (I have installed a couple of big games) the less space i have in /. Is there any way I can install these in /home instead ? Or do i need to boot up with Gparted and increase my /partition. I only gave the / partition 10 gigs because i was advised that this was all i'd ever need.
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Sep 30, 2010
I have a Dell laptop which originally was strictly a Windows computer; with a LiveCD of PCLinuxOS, I partitioned the drive to make room for dual boot with Linux. Unfortunately, I gave the Root directory too much space, and Home not enough. Is it possible to move anything over to Root to give Home more room? I would get rid of Windows entirely, but for a couple of programs that have no Linux equivalent (at least that I've discovered so far).
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Feb 26, 2010
I am trying to set up mutt with fetchmail and procmail on server space that's not mine. I have access to /home/myusername but not to /var/spool/myusername. Everything seems to work well, but I have no idea where fetchmail (or procmail) is dropping off my mail.
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Nov 30, 2009
I have a small office network (about 30 machine) with linux gateway (6Mbps internet bandwidth). Every user get only 500Kbps bandwidth, and they use the internet very poor. The internet getting slow lately, and I noticed that there are huge amount of small packets (78 byte, 48 byte) coming to linux machines. My question is: How can I solve which machine(s) sending those small packets? Do you have any ideas with netstat command?
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Nov 2, 2010
Are there any tools to view/edit user space memory of running processes on Linux?
It would be a great learning tool.
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Jun 25, 2010
We use a SLES 10 SP2 file server. This file server has all type of files. We want to know what is the amount of space used by mp3 files. What we need to know is the total space in disk of mp3 files. I've been testing du command, and find command, but with no satisfactory results. Does anybody know how to do this?
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Jan 4, 2010
Logical Memory Space of 4GB is divided in to 3GB User Space and 1GB Kernel Space. Always. Correct?
1. How can we change it? (just changing value of PAGE_OFFSET is okay?)
2. If system have only 256MB of memory (embedded system) and suppose Kernel Modules eat away all the memory during boot. User space will be left will no memory. Is this case possible?
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Mar 24, 2011
I have a debian linux on my server. My disk space is only 10GB. When I check the space usage with discus program, it says:
Mount Total Used Avail Prcnt Graph
/ 9.39 GB 8.30 GB 1.10 GB 88.3% [*********-]
+ib/init/rw 124.3 MB 0 KB 124.3 MB 0.0% [----------]
/sys 0 KB 0 KB 0 KB 0.0% [----------]
/dev 120.1 MB 92 KB 120.0 MB 0.1% [----------]
/dev/shm 124.3 MB 0 KB 124.3 MB 0.0% [----------]
But when I use this command:
du / --max-depth=0
It says:
1860864 /
Why the stats of discuss is not like du command?
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Jul 14, 2010
I'm currently studying for my Linux+ test and I'm getting conflicting information regarding the rm -rf command. Yes, I know this a dangerous command, but my question is in regard to how the command functions. In one book I'm studying it says that rm -rf / home/myfolder (there's a space in there) will delete the entire root directory because there is a space between the root and home directory. It says that if there is a spacing such as this, it will ignore anything after the space, so in this case, it would delete the root directory and stop, not that there would be anything left anyway. Then in another book I have, it says that if you did a rm -rf folderName / (with the intention of adding the trailing slash to indicate it is a directory and not a folder) it will delete everything in folderName (assuming it's a child directory of your pwd) and then CONTINUE on and delete the root directory. Now, those two statements contradict each other. When you remove a directory, does the command line ignore anything after a space or not?
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Jan 16, 2011
i have a shell script which some of the lines should be running as root and some other not.the problem is that su is not practically work,it means it take root password from me but it does not run the commands in script.the other problem is thatthere are some commands which should be run as normal user so how it exits from root mode and run that particular command. i tried exit in script file but it dos not work.
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Nov 17, 2010
I am trying to use the at command to run a script file. The test was quite simple, wanted to run today and every 2 days.Here is the at command:at 15:20 today + 2 days -f every2daysDo.shHere is the script:echo "every2daysDo.sh ran on $(date)" >> /home/stacy/attest.logI see the 'output' of the echo command in my log file on today+2 days, but not on the day that I start it.
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Jun 3, 2011
I'm running this command, and seems not to work, following the command:Quote:for nic in `ls /sys/class/net | grep -v lo`; do echo ${nic}; udevinfo -a -p /class/net/{nic} | grep -i address; doneThe output is the following:Quote:eth0eth1But the output should show something like this: (showing the MAC address)uote:
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Jan 21, 2010
I am trying to run an scp command on my linux server, this is working fine, however I changed the output folder to one which has spaces and now when run, it's coming up saying SCP ambiguous target
Here's my string:
expect -c 'spawn scp -r /var/lib/asterisk/backups/Everyday/ administrator@192.1.1.1:
/Volumes/Data1/My Backup Folder/ ; expect assword ; send "MYPASSWORD " ; interact;'
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Mar 29, 2010
I am trying to write a script which compares a log file with reference file. The log file has a table, the LHS of the table are constants strings and RHS of table values changes if there are any changes in configuration.code...
Here I am looking for a script which compares test.log file ( whose RHS data-types are known prior whether it is digit or string) with test.Ref which is reference file for test.log file. It will be really helpful for me if any of you give some idea about writing this script.
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Aug 18, 2010
I am having a souce file (say SOURCEFILE) as below with 5 columns and many rows.
pol name status loan address
123 aaa 21 100 RJY
234 bbb 31 200 RMY
345 ccc 21 300 SJY
456 ddd 41 400 pqr
i want to compare the file (say COMPAREFILE ) which is below :
123
345
I need the following output file (sayOUTPUTFILE) as below :
( ie for file COMPAREFILE i need column 2, column 4 ie name and loan from source file )
ie output file required is to be like below :
123 aaa 100
345 ccc 400
Till now iam using the following method.
1. cutting column 2nd column
2. again cutting 4th column
3. in third, step merging the 2nd and 4 th column.
method of writting single line command or any awk programme to do this in one step.
I need output file (say OUTPUTFILE) as below
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Oct 10, 2010
I have three files with the following structure:
file1
1 2 3 4
5 6 7 8
[code]...
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Sep 11, 2011
If I start a script that is going to take a long time, I inevitably realize it after I've started the script, and wish I had a way of doing some kind of alert once it finishes.
So, for example, if I run:
really_long_script.sh
and press enter...how can I run another command once it finishes?
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Apr 2, 2011
i know that there is already a command for it but it comes out with a lot of letters that makes it hard to find the services that are runningi'm talking about services like DNS, APACHE, DHCP, SAMBA, SSH etcis there a command that will list these services and related services that are running instead of showing a bunch of jumbled and lettered mess thats hard to comprehend
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Nov 26, 2010
I want to launch a gnome-terminal with a korn shell, and I want to specify in advance a command to execute, and then hand control back over to ksh. ex.
Code:
gnome-terminal --execute ksh -ic ls
I expect that to run ksh, do an 'ls' for example, and then give a prompt. I thought the -i switch (for interactive) meant that the shell would resume control, but this doesn't happen. The window just closes quicker than I can see what was output.
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Jun 29, 2010
I want to remote login as a non root user and then run a command under the root account.I have set up the ssh/scp for the non root user and this configuration works fine. What I dont know is how to run a command under root once remotly logged in as the non-root account.I have to run this command under root, it cannot be changed.
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Apr 21, 2010
i use the csh shell at work. you can either log on to servers locally or to the NFS mount. is is important to know which you are mounted to when executing scripts. csh is the only shell that lets me know which high availability server i am currently on.
before i write a shell script to complete a task, i have to type sh or bash at the prompt, hit enter and then configure the script. then when i am done, hit control -d to get out the bash or sh shell.
is there a way to run sh or bash scripts from the csh command line - i have tried typing this at the csh command line: /bin/sh (or ./bin/bash) while [ 1 ]; do ps auxwww | grep fire | wc -l ; done ... etc, but it does not work.
we do not have the zsh shell at work
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