191
votes
Any app on Ubuntu to open and/or convert HEIF pictures (.HEIC, High Efficiency Image File Format)?
In recent Ubuntu versions (>= 18.04):
sudo apt-get install libheif-examples
And then
for file in *.heic; do heif-convert $file ${file/%.heic/.jpg}; done
In older Ubuntu or Mint versions, first add ...
- 4,400
152
votes
Accepted
Any app on Ubuntu to open and/or convert HEIF pictures (.HEIC, High Efficiency Image File Format)?
Ubuntu 22.04 quick start
install heif-gdk-pixbuf for support in at least eog (Eye of GNOME, GNOME Image Viewer).
install heif-thumbnailer for file manager (nautilus, nemo) thumbnails.
The available ...
- 13.6k
42
votes
Any app on Ubuntu to open and/or convert HEIF pictures (.HEIC, High Efficiency Image File Format)?
On Ubuntu 20.04 Focal Fossa:
$ sudo apt install heif-gdk-pixbuf heif-thumbnailer gimagereader gpicview
then find an HEIC file in the file manager, right click, select Properties then Open With and ...
- 833
40
votes
Why do some applications have files with no extension?
There's no established mandate in the Linux world that there must be extensions. Filesystems for UNIX-like operating systems do not separate the extension metadata from the rest of the file name. The ...
- 17.5k
25
votes
Mounting Disk Image in Raw format
You can also have the computer automatically scan all the partitions in a dump and automatically prepare all loop devices, as described here.
So, lets say you dumped your entire /dev/sda into ...
- 918
23
votes
Accepted
How can I find all video files on my system?
Alternative: search on file:
sudo find . -type f -exec file -N -i -- {} + | grep video
or if you only want the filenames ...
sudo find . -type f -exec file -N -i -- {} + | sed -n 's!: video/[^:]*$!!p'...
- 306k
20
votes
Native flac .cue splitter
There is an app called Flacon which does exactly this.
To install:
sudo add-apt-repository ppa:flacon
sudo apt-get update
sudo apt-get install flacon
- 340
20
votes
Accepted
Does Ubuntu carry over Windows filenames (png, exe, ect.) or does it have its own?
These are filename extensions, and many of them will be the same between Windows, Linux and MAC OS.
Most executables are not cross-platform, which means you will have to find Linux versions of ...
- 11.5k
12
votes
How can I find all video files on my system?
I imagine this could be done as a 1-liner but it seemed a bit cumbersome so I created a script for ease of launching and editing and called it findvids.sh This is what worked for me.
Note: I may not ...
- 36.4k
12
votes
Accepted
What is the output of `cat image.png`?
cat will print out the content of the file (zeroes and ones which will be mapped to meaningless characters, because they're not really characters right?) into stdout which by default is your terminal.
...
- 56.6k
10
votes
Convert PDF to Word Using Libreoffice in terminal
I'm using LibreOffice for a long now but still can't understand it how does it work with different files.
I'm using the below command to convert PDF to WORD. You may try :
libreoffice --infilter=&...
- 201
9
votes
What software should I install for opening .stl files?
You can use F3D for this task.
f3d yourFile.stl
- 191
9
votes
What is the output of `cat image.png`?
cat simply outputs contents of the file to stdout stream, which in your case happens to be terminal. What happens with the sequence of 0's and 1's that comprise the file is up to the terminal. In case ...
- 107k
9
votes
FILE extension changing while copying from Ubuntu to windows
It appears that Windows adds the .file extension to any file with an extension it doesn't know/recognise. Understandable, because text/plain is not a file extension but rather a 'content type'.
It ...
- 532
9
votes
Cannot open 90% of recently saved images (webp format)
The 90% of the images that you were unable to open are .webp image files which are becoming more and more common on the web. webP uses the modern VP8 compression format to deliver efficient ...
- 119k
8
votes
How to assign (set) a MIME type to a file?
Question is already answered by @PHPLearner in a comment. However, here is a longer answer.
There is no particular command like mime as asked in the question, and no doubt one such command can be ...
- 2,535
8
votes
Is there an application for reading mobi files?
Foliate is one of the best applications for reading epub and Mobi files.
You can use your favorite method for obtaining it.
PPA
sudo add-apt-repository ppa:apandada1/foliate
sudo apt update
sudo apt ...
8
votes
How to fake the format of file to an arbitrary format?
Linux does not care about file extension. Changing the file name does NOT let the file command show it is a picture. It will still show it is an ISO.
How do you believe to retrieve the ISO from doing ...
- 306k
8
votes
Any app on Ubuntu to open and/or convert HEIF pictures (.HEIC, High Efficiency Image File Format)?
GIMP 2.10.2 now reads, writes, and edits .HEIC container files, and ImageMagick will convert from .HEIC image container files.
- 17.5k
7
votes
Batch convert ai files to pdf / png etc
A typical .ai file (from version 9 up), saved the normal way (with PDF compatibility) does not need any special conversion (in most cases). For example, if you take a typical .ai file ...as I said, ...
- 172
7
votes
Accepted
Copy all files from certain file type extension in script
You should change "$adir/$extType" to "$adir/"$extType otherwise glob expansion won't take place and it looks for a file exactly with the name of *.txt which can not be found and thus it complains ...
- 56.6k
6
votes
How to fake the format of file to an arbitrary format?
This sounds very very much like an A/B problem to me. You want to protect data in such a way people won't suspect that it's sensitive data.
The easiest way to hide data is to just encrypt it using ...
- 34.4k
6
votes
Accepted
How to programatically get program associated with a given file extension?
To sum up the comments above the answer to this problem is a two step process:
First determine the MIME type of the file:
MIMETYPE=$(xdg-mime query filetype "<your-file-here>")
Then get the ...
- 448
6
votes
How can I convert an avif image file to a png file?
Check if a file is avif. If FILE.avif is avif, the results of file FILE.avif should be:
FILE.avif: ISO Media, AVIF Image
Convert an individual file from avif to png:
convert FILE.avif FILE.png
...
- 119k
5
votes
Getting rid of the p7m file extension
Unfortunately, none of these answers worked for me. The attachment showed up in gmail's web interface as smime.p7m, and in Thunderbird (which I can now get rid of since it didn't help) as winmail.dat.
...
- 71
5
votes
Splitting an MP4 file
I thought it may be helpful to go beyond the original question of "how do I properly split an mp4 file?" by pointing out how to do it efficiently. For a large video, it may be especially helpful, as I ...
- 51
5
votes
Why do some applications have files with no extension?
As K7AAY says, there is no strong connection between the filename and the filetype, although I disagree that files with no extension is likely to be plain text. The way to find out with some degree of ...
- 308
5
votes
Opening winmail.dat attachments
Microsoft Outlook can include attachments in email using a proprietary format. Email clients that do not support the Outlook format see that attachment as a file winmail.dat. You can still decode the ...
- 93.7k
5
votes
Accepted
How to find all files that are not of a certain extension?
In bash with extglob set you can use negative matching:
shopt -s extglob # often a default, could be already set
rm *.!(png)
rm !(*keep*|*save*) # everything except files with "keep" or "save" in ...
- 5,679
Only top scored, non community-wiki answers of a minimum length are eligible