Software :: Program To Determine If A File Is A Valid Image (jpg, Png, Gif, Etc.)?

Jun 9, 2009

As the title says, I'm looking for a program that will go through all images in a directory tree and determine if they're valid, if they've been corrupted, and (wishful thinking) if they have the wrong extension. Does anything like that exist?

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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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General :: Can't Find A Valid Ram Image

Apr 8, 2010

I've compiled the kernel 2.6.33, configured it and installed (make install)

When it boots up I get the following messages: RAMDISK: I can't find a valid disk image at 0 VFS: Couldn't open root at /boot/vmlinuz-2.6.33mykerne1 or block (0,0)

Code:
My current system configuration is:
Linux domenico-laptop 2.6.24-16-generic
/etc/boot/menu.lst
titleUbuntu 8.04, kernel 2.6.24-16-generic

[Code]....

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General :: Program To Convert Audio File Of Fax Transmission To Image?

Dec 2, 2010

I have a number of uncompressed audio files recorded off of an analog (POTS) telephone line of fax transmissions. Is there a Linux utility or library I could use to convert these files into images of the fax they contain? I'm not looking to send/receive a fax via a modem, but just to "replay" the communications tones and parse out the fax message.I'm guessing this may not be possible due to duplex issues and not knowing which end of the conversation is sending what,but thought I'd ask to see if anyone knew of something.

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Debian :: File Upload Using Firefox - Smaller Image File Is Previewed While Bigger Image File Is Not

Dec 16, 2015

I am trying to upload some pics on my Facebook account using Firefox. When I click on Facebook's file upload icon, Firefox bring up a 'File Upload' window. I noticed that smaller image file is previewed on the lower right hand corner, while bigger image file is not. Is there anyway I can change this behavior or maybe change what Firefox is using to browse my files?

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OpenSUSE Network :: Program To Determine Back Door?

Nov 1, 2010

I'm highly suspicious that someone installed a backdoor on my system. Is there a program or way to determine this?

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General :: Determine What Program Is Listening To Some Port , TCP , UDP In System?

Jan 21, 2010

Is there a way to determine what program is listening to some port, TCP or UDP, in Linux?

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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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General :: Counting Valid Paragraphs From A Html File?

Mar 28, 2010

I just wrote an html file, but somewhere on the write I lost count of the paragraphs.

In an html file paragaphs starts with <p> and ends with </p>

What I want to know is how to find the valid paragraph.

I used grep '<p>' file_name | grep -wc '</p>' . I dont know if this works.

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General :: Current Time - File Path No Longer Valid

Aug 21, 2011

I am reading about jiffies in linux kernel. In one of the related example in the book Linux Device Driver, the author use
head -8 /proc/currentime
to print out some time information.

However this file is not present in my linux installation (kernel: 2.6.32-131.6.1.el6.x86_64). Why is it the case? Is it because the file path is no longer valid, or it is a distribution feature thing? It is not present in OSX too. What would be an equivalent in OSX?

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Ubuntu :: Restoring Evolution From Backup - No Valid File Message

Jul 7, 2011

I've been using 11.04 Unity, & quite like it. I fired up Blender 2.49b the other day (not used it for a long time) & its behaviour was very erratic. Due to this I decided to reinstall 10.10 for the time being, until October or maybe even the 12.04 LTS. I backed everything up & reinstalled 10.10. I then tried to restore my Evolution from the Natty backup file, which simply didn't work. The message was something about it not being a valid file. I'm assuming this is a non backwards compatibility issue.

Any way getting Blender to work or restoring Evolution? With regard to Blender (in Natty); I've not tried proprietary drivers for my GPU yet as the open source defaults have always been fine, so that's an option. It means another reinstall (of Natty), but that really isn't such a big deal at this point. With regard to Evolution (in Maverick); I found a ppa but I'm unsure how to proceed once I've added it. Would I do an apt-get update & an apt-get install evolution?

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Ubuntu :: System Crashes - Lower File Not In Valid ECryptfs Format

Jan 10, 2010

Right, I seem to get very random system crashes. My machine will stay up for long periods of time, or sometimes only a few mins, also it doesn't seem related to just using a particular program. As you can imagine this is leading to a bag of woes. After reading on a forum about logs I went to /var/log and in the system log found the following entry . . .

"Jan 10 18:46:10 jon-desktop kernel: [ 92.718896] Either the lower file is not in a valid eCryptfs format, or the key could not be retrieved. Plaintext passthrough mode is not enabled; returning -EIO"

This is repeated multiple times and having checked after a few crashes seems to be the central problem. Being specific about the crashes, they freeze the entire system. Can't ctl-alt-del and sound loops, have to hard reset. I have a feeling that when I first installed Ubuntu 9.10 I selected to use an encrypted file system but have a feeling that I didn't set it up correctly. Not sure exactly what I didn't do but I seem to remember it was to do with generating a passphrase. So . . .

1) What is this error from my logs?
2) Is it linked to me not setting up the encrypted filesystem correctly?
3) Is there a way to check the settings / sort them out properly?
4) Is there documentation for my dullard state which can aid me in this, or is it quite simple?

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Hardware :: Possible To Write File-system On Hard Disk Without Any Valid Partition

Nov 15, 2010

I've surprisely recognized that it's possible to write a filesystem on a hard disk without any valid partition. Well, the general advantages of partitions are clearly. But what are possible disadvantages or limitaions if you don't use a partition (e.g. if you want to use the complete space as one volume for data mining or so)?

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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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Ubuntu :: Determine The Last File Access Time?

Jan 5, 2011

Is there a bash command that I can use to determine the last file access time? I know about -atime option for the find command, but I want to doublecheck to make sure that I'm doing this correctly (the output when I use find -atime isn't what I expect).

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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

Code:

du -sh foldername

but i receive the total size .

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General :: How To Determine What File Tripped Up Tar Process

Feb 8, 2010

I am writing, well actually enhancing, a script to do a daily backup of important data on my PC to a second hard drive.I wish to tar my home directory to a single file - and will probably use gzip as well.So I decided to work out the correct tar syntax in a terminal first - here is what happened.I opened a terminal window.I cd to a directory not part of my home directory.I issued the command..Quote: tar -cvf mytar.tar /home/ken tar processed a bunch of files, the last being .netrc.I examined the tar file and it contains .netrc.The contents of .netrc are correct.I scrolled back through the list of files in the terminal window and do not see any error messages.I guess the question is... how do I determine what file tripped up the tar process?

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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:

Code:

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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Software :: Get Image From Webcam By C Or C++ Program?

Jan 21, 2010

How to get image from webcam by linux c or c++ program? I have a netbook which comes with a webcam, however, how to identify it to be which device file in /dev? Is there any bash command to detect this?

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Software :: Program To Convert An Iso Image To Cso

Jan 27, 2010

i have recently learned how to make backups of my psp games but for some reason they won't play them in iso format only cso (not suprisingly since everyone encourages the use of this format) is there a program out there thats easy to use, can someone show me how to use it i downloaded and installed ciso but haven't figured out what makes it tick

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Debian :: Determine File Type On Bash - Command Not Found

May 10, 2015

I cannot find a bash command: "file" !

It say "-bash: file: command not found"

"file" is used to determine file type on a bash right ? is there a package i have to install ? deprecated ?

I use debian wheezy distro

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General :: Command Line - Determine What File Occupies A Given Sector?

Apr 14, 2010

In Linux, I'd like to know how to find the file(s) if any which as using a particular sector on the hard drive (ext2/3). There is a similar question here regarding Windows, however I need a Linux command line solution (this is a headless system).

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General :: How To Determine Exact Directory / File From Error Message

Mar 11, 2011

Is there any way to tell which file or directory this is referencing in particular?

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General :: Determine Number Of Rows And Columns Of File In Shell?

Mar 4, 2010

if there's a tab-delimited file under /usr/desktop, how can I determine the number of rows and columns of the file in shell?And, if told the the 3rd column of the file contains only numerical values and all values in the 5th column are unique, how can I verify these in shell?

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Ubuntu :: Looking For Jpeg Image Manipulation Program?

Jan 20, 2010

Looking for jpeg image manipulation program

I was wondering what is available in the Linux world that would allow me to combine two or more jpegs into one grid-based image. I want to upload some images to an online auction and would like to combine them beforehand.

Haven't looked through Synaptic Package Manager yet.

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Ubuntu :: Program To Restore Disk Image?

May 3, 2010

I am having a problem finding a piece of software. I've searched a lot and still have not come up with an answer. My situation is as follows: I have an image file the I wish to restore to my USB flash drive but so far I've had no luck doing this. I was wondering if there was a program/command that could help me restore the disk image.

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Ubuntu :: Ghost Image Program Installed On 9.10?

Mar 29, 2011

there i have a computer running ubuntu 9.10 set up as a server in my classroom. I have ftp http and an internal mail server set up on it as well as other settings. I really want to make a copy of the system so i have a back up of the os. i have figured out that i can attach a hdd to the computer and copy the os via the command line with an ubuntu live cd but this only works as long as the computer that is receiving the backup is exactly the same or the same computer. I would like to transfer the image to a portable hdd then install the os onto virtual box ( a virtual machine). Is there a way to do this without buying expensive software.dose ubuntu 9.10 have a product similar to Norton ghost.

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General :: Program To Make Image Of Partition

Mar 1, 2010

What is good program and that is easy to use to make a image of a linux partition

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General :: Program To Get A Webcam Image Large?

May 11, 2010

Just purchased a webcam and it worked immediatelly with kopete. This was in the configuration dialog, a small window showed me moving around in all my gloriousness. Now realise why those horror films show this sort of footage.

Thing is: how to make the image bigger, fill the screen? Is there a program? Don't say rtfm, I don't know enough to do that.

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