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Questions tagged [file-format]

For questions relating to file-formats. This is a general tag, please consider using the actual file-format your question relates to as a tag instead.

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I move folder to * file type how to get file form it [closed]

I try mv Some.txt A* but there is not any folder name of A so it converts into 'A*'file ls screenshot
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0 votes
0 answers
25 views

Symlink to jar in /usr/bin: cannot execute binary file: Exec format error [duplicate]

I'm a bit puzzled on Ubuntu 22.04, I installed the ditaa package, which is a java program providing a jar in /usr/share/ditaa/ditaa.jar that is supposed to be run with java -jar /usr/share/ditaa/ditaa....
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1 vote
0 answers
30 views

The file chooser in some apps gives an option 'customised files' or 'all files' - how to set default?

The file chooser in some apps gives an option selector button down in the bottom right marked 'customised files' or 'all files'. The specific problem that this creates is as follows. My digital camera ...
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  • 471
0 votes
1 answer
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What's the role of the yuml file in the netplan folder?

I just learned that yAML files are useful to set network configurations. While playing around with it I mistakenly edited the yUML present in the same /etc/netplan folder and saved it using nano. ...
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1 vote
0 answers
53 views

What can be used to open .ccitt files?

pdfimages extracted from pdf file .-000.ccitt and .-000.params How can I open it? Searching finds spam farms with automatically generated text about extensions.
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1 vote
1 answer
1k views

Exec format error with "data" file format

Does anyone knows why it gives format error when i try to run echo through /bin/echo or /usr/bin/echo but works well if i just type echo in the command line bash: /usr/bin/echo: cannot execute binary ...
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4 votes
2 answers
214 views

Cheese: How to save camera image with another format (other than .jpg)?

I'm tring to use builtin webcam from my laptop to capture image. Currently I'm using cheese. I know vlc will do the job but I wonder if cheese can do this. I haven't found any option to change saving ...
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0 votes
1 answer
77 views

How to unpack EaseUs Todo backup .PBD files on Ubuntu

I have a .PBD backup file of my old Windows laptop. This is created by the EaseUs Todo Backup utility. They don't make it for Ubuntu. Is there any way to unpack this file in an Ubuntu-native way?
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0 answers
14 views

problems with gvim

I recently upgraded from ubuntu 16.04 to 18.04. I am having problrms editing a file with gvim. I get unnecessary margin (tab spaces) towards the left when I select a para and use gq.
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0 votes
1 answer
95 views

Can I reference a file in another file location rather than copying and pasting it?

Imagine I have a file named "Movie 1" sized 2 gb in the Videos directory, and then i want to organize that file into 2 other files, such as placing "Movie 1" into "Funny ...
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0 votes
0 answers
314 views

Cannot mount microSD card

I am trying to mount my micro SD card but it shows write-protected. I have tried disabling using the notch on the adapter. I also ran the following commands: lsblk -p /dev/mmcblk0 ...
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1 vote
1 answer
113 views

Programatically modify file associations using standard interface (cases where mimetype does not matter)

I know that I can use xdg-mime default codium.desktop text/plain to change association for text\plain mimetype ( Programatically modify file associations using standard interface (using mimetype) ) ...
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2 votes
2 answers
224 views

I am not able to open the txt file on desktop by double clicking on it

I have pasted a .txt file in desktop folder so it is obvious that same file will show on desktop of ubuntu but when i double click on the file on desktop it will not open but when i click on the same ...
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0 votes
1 answer
82 views

My USB flash drive suddenly get write protected, now I can't format this. how can I do this in Ubuntu?

I have tried GParted in Ubuntu & dosfstools also but it didn't work. Also tried 'ease us' in Windows. please help me to find a solution using the Ubuntu terminal
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1 vote
1 answer
625 views

Use different default applications to open .txt and .ply files

I am using Ubuntu 20.04. As is known, .txt suffix is for plain text files, and .ply is for polygon meshes. However, I find that for some weird reason, the default application to open .txt and .ply are ...
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4 votes
1 answer
767 views

How do I open .qch files?

I've installed the qt5-doc package but I'm not able to open the .qch files that I find in the /usr/share/qt5/doc/ directory. Do you know how I can do this? I've tried using qt5-assistant like this: ...
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  • 253
0 votes
1 answer
376 views

How to playback TRM (US Court Audio Record) files?

I have files with TRM/TRS extensions (US Court Audio/Video Records) that I need to playback. VLC was able to playback the video but does not recognise the audio codec. The error message reads: ...
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  • 203
0 votes
2 answers
957 views

Image viewer that can display all ICO sizes in a file

What are the image viewers available in Kubuntu that are able to display all ICO sizes in a file? In Windows 7 Picture Viewer, I can use PAGE UP / PAGE DOWN to navigate on the "mipmaps" (or ...
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  • 417
0 votes
1 answer
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Which files formats are considered regular files in Ubuntu?

S_ISREG() is a macro used to interpret the values in a stat-struct. From man page it states : S_ISREG(m) is it a regular file? // Macro checks, if the file is regular or not. Questions : Which ...
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3 votes
1 answer
261 views

How to open different plain text files (.txt and .tex) with different default applications?

I would like to open .txt files with Text Editor by default but .tex files with Texmaker. However, if I change the default programme for .tex files to Text Editor by editing the properties of the file,...
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0 votes
0 answers
38 views

How to back up to an external USB drive all files with specified extensions?

Recommend software to locate and back up to an external USB drive all files with specified extensions (documents, pictures, videos, music, etc.) on my laptop a Toshiba Satellite S875-S7370 with Ubuntu ...
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-1 votes
1 answer
248 views

Why is the following (attached screenshot) file size shown negative bytes?

OS used : Ubuntu 20.04 LTS DE: GNOME App screenshot : Virtual Machine Manager What is the meaning of -1 byte? is it possible in the world of computer science to have such a file size? Please explain,...
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6 votes
3 answers
11k views

Convert PDF to Word Using Libreoffice in terminal

I am using the following libreoffice command to convert my pdf files into word(doc) lowriter --headless --infilter='writer_pdf_import' --convert-to doc:"MS Word 2007 XML" sample.pdf After ...
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  • 303
1 vote
1 answer
1k views

File extension for Audio file with ID3 version 2.4.0, contains:MPEG ADTS, layer III, v1, 192 kbps, 44.1 kHz, Monaural

I got a audio file without file extention. I want to add file extention in that file. I just know that its a audio file. So I tried to check its type using file command. alok@alok-HP-Laptop-14s-cr1:~/...
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  • 474
1 vote
2 answers
491 views

How to change the final downloaded video format with Video Downloader

I use Ubuntu Studio 20.04 LTS. I downloaded and installed the app: Video Downloader, which is saved on: /snap/bin/video-downloader I wonder if there is a way to change the final downloaded video ...
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  • 1,601
2 votes
0 answers
107 views

Nautilus from 20.04 will not remember custom extensions on sftp?

I have a problem with nautilus on Ubuntu 20.04 handling files of unknown type on sftp folders. For local folders, if Nautilus does not know which application to use, it will complain about the file is ...
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  • 619
4 votes
1 answer
1k views

How to set default application based on file extension, not mime type?

I have files with extensions .txt, .sln and .csproj, they all have mime type text/plain. But they should be opened by different programs. .txt - by Vim, .sln and .csproj - by Rider. How can I achieve ...
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3 votes
4 answers
2k views

Cannot open 90% of recently saved images (webp format)

I very recently installed Ubuntu 20.04 on my laptop and have been having this issue where I can't open most of the images I have saved. I get an error that says Unrecognized Image File Format (but ...
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0 votes
0 answers
39 views

Ubuntu login problem after restoring backuped files from windows

Hello this is the description of my problem: I installed Ubuntu 20.04 LTS on my inspiron N5010 Laptop. It runs very well until I restore my backup files. After that operation I can't login my account ...
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1 vote
0 answers
31 views

How to display classic man page from local file with troff format?

I have a file with troff format and would like to recast to man page file.txt: .. c:function:: bool is_module_percpu_address (unsigned long addr) test whether address is from module static ...
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8 votes
0 answers
771 views

Open encrypted .dmg file?

I have an old encrypted .dmg file I would like to open. Tried what I could but now I am out of options. Option 1: dmg2img Getting error message: dmg image is corrupted Then I tried to use vfdecrypt, ...
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  • 343
3 votes
2 answers
2k views

How to find all files that are not a certain extension?

Let's say I'd like to delete every file in a directory that is not a .png file. I'd only like to keep pictures, and delete everything else. Something like this, which obviously doesn't work: for ...
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  • 374
2 votes
3 answers
3k views

Opening winmail.dat attachments

After saving an attachment in a Thunderbird mail message to my Ubuntu 16.04 files, I was informed that a winmail.dat file can't be opened. I am not tech-savvy. Is there an easy solution?
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  • 341
0 votes
1 answer
73 views

How to open a file with a determined application even when the type is opened by default by another application?

Context Okular is a PDF reader with support to annotations, bookmarks, etc. When I want to save the PDF with the annotations and bookmarks embedded, Okular saves a application/zip file. When I open ...
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15 votes
3 answers
9k views

Why do some applications have files with no extension? [closed]

Why do developers choose to not use file extensions for certain files? Here is an example from MediaWiki - This appears with intention, e.g 'CREDITS' and 'COPYING' is with legal intent, perhaps. Why ...
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  • 275
1 vote
1 answer
130 views

How to programatically get program associated with a given file extension?

How can I without any manual GUI use check what will open file with a specific file extension - for example .rb? Not a duplicate of how can I change file association globally? as mine is about ...
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0 votes
1 answer
342 views

How do I forward emails in thunderbird in a format other than .eml?

When I forward emails in tbird, they are attached as .eml files. Some recipients can't open these files. How do I forward emails in a different file format? e.g., as text files perhaps?
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  • 13
3 votes
1 answer
279 views

How to change default program for files ending in one extension

In Ubuntu 18.** how do I set a default program only for files with one specific file extension? For example if I use the graphical interface and use "Set as default" for a .txt file it also changes ...
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  • 377
0 votes
3 answers
583 views

Bulk change file extensions [duplicate]

I have a folder with ~30 files. The are already BitTorrent metafiles that lack a .torrent suffix. I want to change all those files to .torrent files. How would I do that? In windows it was as easy as ...
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0 votes
0 answers
299 views

Ubuntu Randomly Started Adding ^M (CRLF) to line breaks (all editors)

When I do normal line breaks using enter key on my Ubuntu 18 (Virtualbox), it always appeared fine in git - it never added ^M (which I learned is a version of a carriage return/line feed used by DOS). ...
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  • 101
1 vote
1 answer
3k views

How does External HDD with NTFS format works on Ubuntu?

I connected my external HDD which is formatted in NTFS file format, I was able to read as well as write to it. I have read that Linux can only read NTFS drives but can't write to them. How does this ...
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0 votes
2 answers
103 views

Can not locate a downloaded file with empty name [duplicate]

I downloaded a video using Chrome in Ubuntu by giving empty name, i.e. .mp4 only. I can play using Chrome when I click on it in the download section in Chrome but I can not find this video in the ...
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2 votes
1 answer
1k views

XSD-1.1 command line validation tool for Ubuntu

I'm looking for a command line tool to validate an XML file with an XSD-1.1 file. I have downloaded and installed libxerces2-java and then tried to apply Free and open source XSD 1.1 validation tool? ...
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3 votes
3 answers
3k views

Canon's .CR3 - No Raw Editor on Ubuntu supports?

Please note, that format in context here is Canon's relatively new .CR3 This: I'm either not searching with the right words, or support for .CR3 from Canon camera's like the M50 (that I have) doesn'...
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  • 1,878
6 votes
2 answers
731 views

FILE extension changing while copying from Ubuntu to windows

I downloaded data in Ubuntu which has an extension .text/plain bit when I copied it to my Windows 10 through USB the file extension is changed to '.file'. What should I do now to open it?
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  • 71
1 vote
1 answer
217 views

Changing file extension

I have about 1000 images saved in a weird way. "file_name".jpeg?image=%2Fmars%2Freadonly%2Fthemis%2Fpds%2FODTGEO_v2%2Fbrowse%2Fodtbws2_0050%2Fv545xxbws2%2FV54577010POL.png&rotate=0&format=...
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0 votes
2 answers
11k views

Twitch error #6000

I just installed a fresh Ubuntu and logged into Firefox. I got my usual addons and credentials and after some time logged into twitch to find that every stream gets the following error: I tried ...
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1 vote
1 answer
122 views

Unable to upload .amr files in Ubuntu?

I'm trying to upload media files to a website I'm maintaining. The latest one to be added is .amr (test file from here) and it's causing problems, but only with Ubuntu. It works fine on Mac OS (High ...
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4 votes
1 answer
1k views

Can't Move the Dropbox Folder to Ext4 or NTFS partition

I'm using Ubuntu 16.04 LTS. In response to the change in dropbox file system support, I created a new partition on my hard drive to store my dropbox files in. It's 2 GB larger than my maximum dropbox ...
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3 votes
2 answers
2k views

Copy all files from certain file type extension in script

I am trying to execute the following command in a shell script where adir="mydir" and extType=*.txt cp "$adir/$extType" "$destination" However I get: cp: cannot stat ‘mydir/*.txt’: No such file or ...
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