Recognize file type by content
Multi tool use
In Ubuntu 12.10 there was a nice app called Assogiate. It has ability to add new mimetype, add recognition by content of file and new icon, all done by mouse clicking. Now assogiate disappears from repos. Other programs doesn't have that ability. How to do it by hand?
For example:
I have a file test.lzx. This is a packed test file with LZX packer used mostly on Amiga. Gnome doesn't recognize it. If I test file with file command I see:
$ file test.lzx
test.lzx: LZX compressed archive (Amiga)
Recognize that type of file by content is simple. At 0 offset (at the beginning of file) there is a LZX string:
$ hexdump -C test.lzx | head -n 1
00000000 4c 5a 58 00 0c 00 0a 04 00 00 07 00 00 c0 0d 00 |LZX.............|
In Assogiate I was able to add search string and offset where Gnome have to look for this string.
Now question: how to add manually new mime type and make Gnome recognize it by file content?
Answers at
How do I change the MIME type for a file?
How are file-extensions/mime-types/icons/default applications associated?
are not related to my question.
mime-type
edited Jan 9 at 4:55
Pablo Bianchi
2,4451530
asked Jul 19 '16 at 17:41
QkiZQkiZ
6871526
|
show 5 more comments
In Ubuntu 12.10 there was a nice app called Assogiate. It has ability to add new mimetype, add recognition by content of file and new icon, all done by mouse clicking. Now assogiate disappears from repos. Other programs doesn't have that ability. How to do it by hand?
For example:
I have a file test.lzx. This is a packed test file with LZX packer used mostly on Amiga. Gnome doesn't recognize it. If I test file with file command I see:
$ file test.lzx
test.lzx: LZX compressed archive (Amiga)
Recognize that type of file by content is simple. At 0 offset (at the beginning of file) there is a LZX string:
$ hexdump -C test.lzx | head -n 1
00000000 4c 5a 58 00 0c 00 0a 04 00 00 07 00 00 c0 0d 00 |LZX.............|
In Assogiate I was able to add search string and offset where Gnome have to look for this string.
Now question: how to add manually new mime type and make Gnome recognize it by file content?
Answers at
How do I change the MIME type for a file?
How are file-extensions/mime-types/icons/default applications associated?
are not related to my question.
mime-type
edited Jan 9 at 4:55
Pablo Bianchi
2,4451530
asked Jul 19 '16 at 17:41
QkiZQkiZ
6871526
Other than that you have to edit user files or if needed system files manually but there should be little to no need for doing so (manual edits).
– Panther
Jul 19 '16 at 17:47
I don't want change mime type. I want to add new mime type.
– QkiZ
Jul 19 '16 at 21:02
If you want to add one, edit away ;) The link I gave you shows you how.
– Panther
Jul 19 '16 at 21:11
what link? I don't see any link.
– QkiZ
Jul 20 '16 at 6:40
askubuntu.com/questions/179865/…
– Panther
Jul 20 '16 at 14:47
|
show 5 more comments
In Ubuntu 12.10 there was a nice app called Assogiate. It has ability to add new mimetype, add recognition by content of file and new icon, all done by mouse clicking. Now assogiate disappears from repos. Other programs doesn't have that ability. How to do it by hand?
For example:
I have a file test.lzx. This is a packed test file with LZX packer used mostly on Amiga. Gnome doesn't recognize it. If I test file with file command I see:
$ file test.lzx
test.lzx: LZX compressed archive (Amiga)
Recognize that type of file by content is simple. At 0 offset (at the beginning of file) there is a LZX string:
$ hexdump -C test.lzx | head -n 1
00000000 4c 5a 58 00 0c 00 0a 04 00 00 07 00 00 c0 0d 00 |LZX.............|
In Assogiate I was able to add search string and offset where Gnome have to look for this string.
Now question: how to add manually new mime type and make Gnome recognize it by file content?
Answers at
How do I change the MIME type for a file?
How are file-extensions/mime-types/icons/default applications associated?
are not related to my question.
mime-type
edited Jan 9 at 4:55
Pablo Bianchi
2,4451530
asked Jul 19 '16 at 17:41
QkiZQkiZ
6871526
In Ubuntu 12.10 there was a nice app called Assogiate. It has ability to add new mimetype, add recognition by content of file and new icon, all done by mouse clicking. Now assogiate disappears from repos. Other programs doesn't have that ability. How to do it by hand?
For example:
I have a file test.lzx. This is a packed test file with LZX packer used mostly on Amiga. Gnome doesn't recognize it. If I test file with file command I see:
$ file test.lzx
test.lzx: LZX compressed archive (Amiga)
Recognize that type of file by content is simple. At 0 offset (at the beginning of file) there is a LZX string:
$ hexdump -C test.lzx | head -n 1
00000000 4c 5a 58 00 0c 00 0a 04 00 00 07 00 00 c0 0d 00 |LZX.............|
In Assogiate I was able to add search string and offset where Gnome have to look for this string.
Now question: how to add manually new mime type and make Gnome recognize it by file content?
Answers at
How do I change the MIME type for a file?
How are file-extensions/mime-types/icons/default applications associated?
are not related to my question.
mime-type
mime-type
edited Jan 9 at 4:55
Pablo Bianchi
2,4451530
asked Jul 19 '16 at 17:41
QkiZQkiZ
6871526
edited Jan 9 at 4:55
Pablo Bianchi
2,4451530
asked Jul 19 '16 at 17:41
QkiZQkiZ
6871526
edited Jan 9 at 4:55
Pablo Bianchi
2,4451530
edited Jan 9 at 4:55
Pablo Bianchi
2,4451530
edited Jan 9 at 4:55
Pablo Bianchi
2,4451530
2,4451530
asked Jul 19 '16 at 17:41
QkiZQkiZ
6871526
asked Jul 19 '16 at 17:41
QkiZQkiZ
6871526
asked Jul 19 '16 at 17:41
QkiZQkiZ
6871526
6871526
Other than that you have to edit user files or if needed system files manually but there should be little to no need for doing so (manual edits).
– Panther
Jul 19 '16 at 17:47
I don't want change mime type. I want to add new mime type.
– QkiZ
Jul 19 '16 at 21:02
If you want to add one, edit away ;) The link I gave you shows you how.
– Panther
Jul 19 '16 at 21:11
what link? I don't see any link.
– QkiZ
Jul 20 '16 at 6:40
askubuntu.com/questions/179865/…
– Panther
Jul 20 '16 at 14:47
|
show 5 more comments
Other than that you have to edit user files or if needed system files manually but there should be little to no need for doing so (manual edits).
– Panther
Jul 19 '16 at 17:47
I don't want change mime type. I want to add new mime type.
– QkiZ
Jul 19 '16 at 21:02
If you want to add one, edit away ;) The link I gave you shows you how.
– Panther
Jul 19 '16 at 21:11
what link? I don't see any link.
– QkiZ
Jul 20 '16 at 6:40
askubuntu.com/questions/179865/…
– Panther
Jul 20 '16 at 14:47
Other than that you have to edit user files or if needed system files manually but there should be little to no need for doing so (manual edits).
– Panther
Jul 19 '16 at 17:47
Other than that you have to edit user files or if needed system files manually but there should be little to no need for doing so (manual edits).
– Panther
Jul 19 '16 at 17:47
I don't want change mime type. I want to add new mime type.
– QkiZ
Jul 19 '16 at 21:02
I don't want change mime type. I want to add new mime type.
– QkiZ
Jul 19 '16 at 21:02
If you want to add one, edit away ;) The link I gave you shows you how.
– Panther
Jul 19 '16 at 21:11
If you want to add one, edit away ;) The link I gave you shows you how.
– Panther
Jul 19 '16 at 21:11
what link? I don't see any link.
– QkiZ
Jul 20 '16 at 6:40
what link? I don't see any link.
– QkiZ
Jul 20 '16 at 6:40
askubuntu.com/questions/179865/…
– Panther
Jul 20 '16 at 14:47
askubuntu.com/questions/179865/…
– Panther
Jul 20 '16 at 14:47
|
show 5 more comments
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Other than that you have to edit user files or if needed system files manually but there should be little to no need for doing so (manual edits).
– Panther
Jul 19 '16 at 17:47
I don't want change mime type. I want to add new mime type.
– QkiZ
Jul 19 '16 at 21:02
If you want to add one, edit away ;) The link I gave you shows you how.
– Panther
Jul 19 '16 at 21:11
what link? I don't see any link.
– QkiZ
Jul 20 '16 at 6:40
askubuntu.com/questions/179865/…
– Panther
Jul 20 '16 at 14:47