Programming :: Determine The Size Of File In A Script?

Jun 24, 2010

I have the following which works but think there must be a easier one-liner way of doing this which involves not writing to a file but have failed to find something that works This is what I have:


du -m $i > filesize.txt
FILESIZE=$`cat "filesize.txt" | cut -f1
rm filesize.txt

I then use the FILESIZE to compare to a number.

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General :: Determine Mp3 Length By File Size?

Nov 16, 2010

Multiple dirs full of mp3s All strictly encoded with exactly the same parameters (CBR 128kbps, Joint-Stereo, etc) Is it possible to determine the total playing time (to within ~98% accuracy) by some formula based on the total file size? I say ~98% accurate since ID3 tags do consume a small amount of space.

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General :: Determine The Size Of Each File In A Folder?

Nov 30, 2010

i have a folder with 10 files and i would like to determine the size of each file. i was trying the command


du -sh foldername

but i receive the total size .

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Ubuntu Multimedia :: K3B: Could Not Determine Size Of Resulting Image File

Mar 7, 2010

When I try to burn some .flv files onto a DVD iso using K3B, it gives me the message: "Could not determine size of resulting image file"

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Networking :: Determine A Mtu Size For A Nic?

Jan 8, 2010

i want to change the mtu size of my ethernet controller. I have done successfully set the mtu size 9000 for broadcom net xtreme PCI: 66 Mhz 64 bit 1 gigabit card. (fibre)

Part model no: BCM95703A31
[root@lux08 ~]# ethtool eth0Settings for eth0:
Supported ports: [ FIBRE ]
Supported link modes: 1000baseT/Half 1000baseT/Full
Supports auto-negotiation: Yes


how to change the mtu size for this NIC?

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Programming :: How To Know Size Of File In C

Dec 28, 2010

I want to read a file in C, but i dont know the size of the file. Is there any way to find the size of the file in C...?

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Programming :: Check If Log File Is A Certain Size?

Mar 25, 2010

script that will check if my log file is a certain size? EX: I want to limit the size of my rsync log to say 5MB, if that's true I would move it and create a new one.

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Programming :: Get Avg File Size In Kbytes

Apr 3, 2010

Using bash, is it possible to get the average file size of each file in a directory of ~2000 files?

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CentOS 5 Hardware :: Determine IO Size During Reads And Writes To A Storage Device

Nov 19, 2009

Is there a way to determine the IO size that is being used for reads and writes to an attached storage device? I am trying to pattern the IO sequences to storage. I have seen mentions to max_sectors_kb but the notes indicated that changing this value did not change the IO size to the storage.

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Programming :: Created A File With A Pre-defined Size ?

Feb 19, 2010

I have created a file with a pre-defined size as follows:

#define FILEPATH "testfile"
#define FILESIZE 16


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General :: Generate Random List And Determine Size Of Arbitrary Block Of Files In Dir?

Mar 4, 2010

I want to generate a temporary random list from a directory of files and then determine the size of an arbitrary block of files from this list (say 1-25 or 26-50) and add their names to a file along with some other info for each name. I can generate a random list with file sizes like this: ls -l | sort -R | cut -d " " -f 6 but i'm not sure how to add up the sizes of just a certain block of these files and at the same time save the file names.

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Programming :: Editing Font Size In Evolution Xml File?

Mar 29, 2010

I am trying to increase the font size in the evolution xml file to make the sub-menu easier to read (the menu with new, send/receive, reply, reply to all, forward) I found where the xml file is located but i can not seem to adjust the font. is there a different syntax for xml for changing font than html/css?

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Programming :: Shell Script / How To Check File Size?

Jan 21, 2009

I have a file that's supposed to be growing in size 24/7. I want to check every 10 minutes via cron that it's actually growing. If not, send an email. Does anyone know how to write a script to do that?

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Programming :: Soft Limit For Core File Size?

Jun 22, 2011

Using getrlimit I am setting the core file size to be RLIM_INFINITY. But still the core file is not being generated,although in /var/log/messages it says a core is being generated

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Programming :: File Size Not Properly Checked In A Tcsh Script.

May 7, 2011

The check on the size of a file I perform in a tcsh script does not work. The size of my file is the following :

ls -l File.gpg
-rw-r--r-- 1 xuo users 3354637392 2011-05-07 15:31 File.gpg

The script is the following :

#!/bin/tcsh -f
set listOfEncryptFiles = `ls *.gpg`
foreach file ($listOfEncryptFiles)
set fileSize = `stat -c %s $file`
echo $fileSize


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Ubuntu :: Split Big File Size Into Small File Size

Jun 10, 2010

Are there software that can split big file size into small file size in Linux?

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Slackware :: Slackware 13.37 Doesn't Determine Monitor Size Correctly

Jun 12, 2011

I have a display problem since updating to Slackware 13.37. Everything was fine on Slackware 13.1, but when I switched to 13.37 some piece of software came up with the wrong monitor size. I have a 1600x900 LCD monitor but the X screen came up as 1024x768 with blackness on either side of it. Under Slackware 13.1 the X screen came up as 1600x900 as it should without any prompting from me; I didn't even have an Xorg.conf file. I tried using the Xorg.conf file which was needed and work for older Slackwares, eg 12.*, but it didn't work. (Saying it didn't work is a gross understatement! That old Xorg.conf completely screwed up mouse, keyboard, and monitor; the screen was flashing and nothing worked. The only way to get control back was to SSH into the machine from my laptop and reboot. Killing the X server via that SSH console did NOT the flashing or get me back to my console login; only reboot worked.)

I find I can get the screen to be the right size manually by going through KDE's "System Settings" --> "Display and Monitor" --> "Size & Orientation", then disabling "LVDS1" and setting VGA1 to 1600x900. The size of my odd-sized monitor is being correctly detected for the "Auto" choice. Upon reboot LVDS1 stays disabled but VGA1 reverts to 1024x768 so I have to do this each time.I've done some search of the on-line literature regarding the error messages I am seeing in the boot log.

People are suggesting changing all kinds of things to alleviate the side effects of the "conflicting" error message above, even modifying GRUB parameters (which won't work for me since I use LILO).So, I have a manual work around which I must do each time I log in. Does someone know how I can get X or KDE to force 1600x900 upon start (while Linux/X/whoever find and fix the problem) or does someone know of a real fix?

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Fedora :: Re-size Logical Volume And Then Re-size File System?

Jan 19, 2011

is lvresize with --resizefs options re-size the Logical Volume and then re-size the file system? i mean we don't need to use resize2fs?I looked at man pages but it doesn't explain this option.

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Red Hat / Fedora :: Inode Table Size And File System Size

Dec 14, 2010

How can we find the maximum size of the inode table and what decides it, and how the maximum size of volume of file system is decided ?

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Ubuntu :: Unable To Determine File Type Of Any Of Video File

Oct 14, 2010

I am writting a script to allow uploading of certain files. I want to limit the files by their filename and mime type, and by making sure the two match up.The first thing I need to do is make sure I've got all the mime types I need added. I have never done this before, but I understand that 'file' (which is what PHP's mime-type finding is based off of) uses magic databases that tell at which point in the file should have signatures of the filetype.

My trouble started when I was unable to determine the filetype of any of my video files. Currently, I have some .MOV and .MP4 files that I am using to test.

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Programming :: Determine Which Device The Web Cam Is Using?

Aug 31, 2010

When I run apps like mplayer to use my web cam it uses /dev/video#. For reason unknown to me this number changes and is usually either 1 or 0. I have looked on the Internet after struggling to find how to know which /dev/video device is used. So far I can only presume I have used the wrong terms to find how to determine which device the web cam is using.

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Programming :: Determine What CPU Thread Is On?

Jul 2, 2010

Is there a library/system call that will return to me what CPU core a thread of execution is running on? I've looked for a bit on the net already and also in /usr/include and couldn't find one.

getcpu() and sched_getcpu() are two that I found, but when I include the appropriate header files (linux/getcpu.h, and sys/sched.h respectively), gcc says getcpu.h doesn't exist and the linker complains it cannot find the implementation in sched.h.

I'm sure I'm doing something really stupid or overthinking...

What I am doing is running an OpenMP application and specifying a list of cpu cores to run on with GOMP_CPU_AFFINITY. I want to make sure that each core is getting the same number of threads.


It seems that this code works, but only with glibc >= 2.6, and my machine has 2.5:

#define _GNU_SOURCE
#include <stdio.h>
#include <utmpx.h>
int main( void )


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Programming :: Determine Files And Directories?

Mar 9, 2010

i made a program to list all the files in a directory,is there a way to determine what are directories and what are files ?

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Programming :: Determine Sender PID Of A Connection

Mar 4, 2011

I have observed in a process's log file that it is receiving a number of connections from other processes running on the same box.

For example, I see lines of the following:

While I can use "netstat -tlp | egrep '5870|5871'" to see the PID of the listening process. How is it can I find out what PIDs are sending from 23870 and 23548?

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Programming :: Need To Determine Bitrate Of Stream?

Dec 3, 2009

I'm new to gStreamer and need to determine the bitrate of a stream. Has anyone here worked with this before and does anyone know how to do it?

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Programming :: How To Determine If VGA Monitor Plugged In

Sep 2, 2010

Does anyone know a way (hopefully a standard/generic way, e.g. through sysfs the interface) to determine if a VGA monitor is plugged in on Linux?

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Programming :: Non-root User Determine Which Days The Computer Ran?

Mar 22, 2010

Is there any way a non-root user can programmatically determine which days the computer ran during, say, the last month?

The information is in /var/log/messages.* but those files are root:root 640.

Non of the world-readable /var/log files on the Slackware 13.0 development system can be used:boot Not present if boot logging not enabled (default). dmesg No timestamps. lastlog Not enough info. wtmp Rewritten on each boot so not enough info. EDIT: not correct: by default wtmp is rotated weekly and kept for one month as configured in /etc/logrotate.conf xdm.log Not present if xdm not used. Xorg.0.log Not present if X not run.

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Programming :: Python: Determine If Running In 32 Or 64bit Mode?

Jun 23, 2011

How can I programmatically determine if my python script is being run with a 32 or 64 bit interpreter? Better yet, is there a one-liner I can run that will print out the word size of the current python session?

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Programming :: C++ Determine If Current User Is Member Of A Specific Group?

Jan 12, 2011

What functions are available on linux for a c++ program to determine if the current user is a member of a specific user group?

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General :: How To Determine What Process Has A File Open

Jan 19, 2010

I'd like to determine what process has ownership of a lock-file. The lock-files are simply a file with a specific name that has been created.So, how can I determine what process has a particular file open in Linux? Preferably a one-liner type or a particular Linux tool solution would be optimal.

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