Questions tagged [file-types]

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8 views

How to change file type settings in Ubuntu Beaver?

I noticed that when I looked at my documents folder, there was an XAPK file there. I knew it was there, but Nautilus detected it as a zip file. I was able to change filetype settings before on my RPi, ...
0
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1answer
9 views

show “detailed type” instead of “type” as default in nemo

I would like to differ between SVG, JPEG, PNG images in a folder. It is anoying to always change it, so I want to set "detailed type" instead of "type" as default.
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1answer
61 views

Why do Unix/Linux systems still need to depend on Microsoft?

On an Ubuntu 20.04 system on Intel hardware: # cd /boot/efi/EFI/ # file $(find . -name '*.efi') ./ubuntu/grubx64.efi: PE32+ executable …, for MS Windows ./ubuntu/shimx64.efi: PE32+ executable …, for ...
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0answers
34 views

How to ID images that have extra data attached?

I'm trying to extract images from a complex file. I'm able to break down that file in different sections and extract them all to different files. The idea then was to use file to detect the type of ...
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1answer
31 views

Does the error mean this file was not created using OpenSSL? If not, how do I figure out what encrypted this file?

When running the below command, I received this error: OpenSSL> rsautl -decrypt -in binarytext -out file.txt -inkey file2.txt unable to load Private Key 7324:error:0909006C:PEM routines:get_name:no ...
1
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1answer
221 views

How can I remove source code based file types in linux?

I have a list of raw files that were scraped and it consists of both text and source codes. Below is the filetypes listed and I wanted to remove all files which are of type C Source, python script, ...
6
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3answers
719 views

Executable common files (*.pdf, etc.)

I have a number of files showing up green when I run ls. I understand these are executables, and I understand that one can make a file executable with chmod. But they are .csv and .pdf files. I don't ...
0
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1answer
38 views

file extensions not working anymore, everything is plaintext

Unsure where to look for this, but since this morning every file I create is of type plaintext. The last thing I did was remove vim to install the gtk-3 version for python support etc. Just Just ...
13
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2answers
1k views

How does the file command distinguish text and LaTeX files?

I have a number of files (Jupyter notebooks, .ipynb) which are text files. All of these contain some LaTeX markup. But when I run file, I get: $ file nb_* nb_1.ipynb: ASCII text nb_2....
3
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2answers
588 views

How many possible file types in the output `ls -l` command?

usually, the possible file types in the output ls -l command are d and -, which represent directory and regular file respectively. besides above, I saw another type l in the output on macOS. drwxr-...
0
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1answer
420 views

Magic file format

From the magic file format manual the format for the rule should be offset type value message For example: 0 string MZ >0x18 leshort <0x40 MS-DOS executable >0x18 leshort >...
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1answer
66 views

How reclaim pdf file type from FoxitReader?

I installed FoxitReader. Now when I look at the detailed listing in my file browser (Thunar), it displays the filetype of any pdf as 'FoxitReader document'. How do I get it to display simply as PDF?
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2answers
3k views

cat shows nothing

My team is working on a CI environment. A ko file, named x.ko, is always generated from the CI environment at a regular time everyday and its type is ELF 64-bit LSB relocatable. Today, I found that ...
0
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1answer
330 views

How to create a 7zip archive of files from a directory, excluding existing archives?

Want to 7zip all files in root/current folder except for all zip-files AND all 7z/7zip files. I can only get one of these to work at a time in one if ! statement: for file in ./test2/* do if ! { ...
13
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4answers
30k views

How to find files by file type?

I know I can find files using find: find . -type f -name 'sunrise'. Example result: ./sunrise ./events/sunrise ./astronomy/sunrise ./schedule/sunrise I also know that I can determine the file type ...
0
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2answers
372 views

How to detect the type of a file in tar.gz

I want to detect the type of a file, which is compressed into a tar.gz, but I don't want to extract it. In a word, is it possible to execute a command (such as file) onto a file in a tar.gz without ...
2
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1answer
38 views

Changing program used to open file based on file extension

For a college class, I have to download and open .rkt files. In order to open them with the correct program I have to right-click > open with, and if I set a default program, it becomes the default ...
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2answers
9k views

What is anon_inode in the output of “ls -l /proc/[PID]/fd”?

While looking through /proc/[PID]/fd/ folder of various processes, I found curious entry for dbus lrwx------ 1 root root 64 Aug 20 05:46 4 -> anon_inode:[eventpoll] Hence the question, what are ...
2
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1answer
54 views

File doesn't seem to be regular but is listed as such

From what I understand, on Linux/UNIX files from which you get system info aren't regular files but rather device files and yet I have encountered a file that doesn't seem to be regular (due to its ...
0
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1answer
261 views

How to download a document from a webpage with wget

I have a web page which contains a link to a document. I'm able to download the document by using the following command: wget -r -A.doc www.website.com/1.doc However, I would like to provide the ...
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1answer
17k views

Explain please what is a magic file in unix [closed]

We can create magic files with file -C -m filename. Also there is the /usr/share/file/magic folder with a list of magic files on my OS X machine. But what is this? Would somebody explain, why ...
1
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1answer
230 views

How are binary files “binary”?

I understand that a binary file is not simple machine code with zeroes and ones. At a meeting yesterday, my colleague stated that we would need a hexdump editor to read binary configuration files for ...
0
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1answer
594 views

Comments in ~/.config/mimeapps.list

I want to add comments in my ~/.config/mimeapps.list file. How do I do this? Chapter and verse preferred as errors seem to be silently ignored.
1
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0answers
61 views

Is there a content search program/port (*not* index based) that's efficient for files needing text extraction filters

If using FreeBSD as a file server for windows clients, it's useful to be able to run file searches server-side rather than client-side. A typical example might be: find all files meeting some ...
2
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1answer
30 views

How to preserve the original extension after multiple files manipulation

This follow is a useful command to add a border to multiple images (require ImageMagick package): convert -border 5x5 -bordercolor "#008000" *.png imgs The result is that the new files will be named ...
2
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0answers
216 views

List all filename extension associations for a given program

Is there a way of getting all xdg-open's file name extensions that are associated with a given application, eg: .html -> firefox.desktop .htm -> firefox.desktop
1
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2answers
691 views

How to rename misnamed files with their appropriate extensions?

I have a folder with the bulk of files in it of different types, i.e .pdf,.jpg,.png,.tiff etc., but all are named with the extension .JPG. How can I rename all of them with their original extensions? ...
2
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1answer
231 views

How to associate file types on Linux host with Windows applications through VirtualBox?

How can I associate file types in desktop Linux with Windows 7 applications running through VirtualBox so they work seamlessly, starting VirtualBox if required? I'm using KDE. Current method (...
1
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1answer
272 views

Unix decides about the type of a file looking for magic files at fixed offsets. How can it do so reliably?

From https://linux.die.net/man/1/file: The magic tests are used to check for files with data in particular fixed formats. The canonical example of this is a binary executable (compiled program) a....
0
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1answer
530 views

wget convert tgz file to HTML

I'm trying to download a .tgz file under debian so I decided to use wget for this. This is my command line : ~$ wget http://www.netmet-solutions.org/download/netMETdistrib-4.5_5.8_20160322.tgz I ...
12
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1answer
5k views

Setting default application for filetypes via CLI?

I have 150 Debian Jessie machines that open ODS files in Gnumeric when double-clicked despite LibreOffice Calc being installed. I know it is possible to change this by right-clicking the ODS file and ...
1
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0answers
838 views

How can I open a MIME-formatted file?

On several distributions of Linux, there is a utility called xdg-open, which opens a file in the default application for that particular file type. E.g., for HTML files, it might open firefox. A MIME-...
1
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1answer
4k views

linux64 extension

I'm trying to install a program (Teensyduino) on Xubuntu 16.04, but the executable installation file has a .linux64 extension. I've tried running the following commands to open it sudo ./...
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1answer
130 views

File Stat Program [closed]

I have a simple program which prints whether a pathname argument is either a directory, regular file with execute privileges, a regular file, a symbolic link, or other. I have the following if ...
6
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1answer
1k views

Unknown Filetype in ls

In general, what are the reasons why a filetype might show as unknown (?) in ls output? See the first bit for the file /sbin/start-stop-daemon, which should indicate - for "regular file", instead is ...
2
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1answer
3k views

How to convert chromium os bin file from Source Forge to iso?

I want to convert the bin file from source forge I've try to call: bchunk chromiumos_image.bin chromiumos_image.cue chromiumos_image.iso but got error: Could not open BIN chromiumos_image.bin: ...
4
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1answer
1k views

how can I read a number with file (magic)?

I would like to write the format of a drawing with "file drawing" Files start like: CAD A1 mm (Blank after A1) or: CAD A00 m (Blank after "m") I tried somethings like in the file magic: 0 ...
4
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2answers
5k views

Sort files into folders, depending on filetype

I have about 2.8TB (yes, terabytes) of data I have recovered, this will be scanned for duplicates, the machine these files reside on is quite old and only has 2GB of memory (works fine for LVM, ...
2
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2answers
2k views

magic example using search and/or regex

I am trying to have the file command detect some Windows text files that were never meant to be classified by file... The best choice seems to use regex to match the line content, but I cannot find a ...
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1answer
84 views

Problem using SAP site

My father's company site uses SAP. He's trying to move to Linux (tired of Windows' bugs, problems and viruses) but he can't natively use the site's functionalities. When he tries to open those a popup ...
2
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3answers
749 views

Bash script to count file types in a path (including subfolders)

I would like to get a quick overview over the different file types in a directory (including all its subdirectories) using the file tool, e.g. telling me what file type is the most common one there. ...
11
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4answers
35k views

How to use wc and piping to find how many files and directories are in a certain directory?

How can I use word counter (wc) and piping to count how many files or directories are in the /usr/bin directory?