Determine rdf mime-types in bash

I am writing a bash script, that needs to check the different mime-types of different files. The files should support rdf4j REST API (http://docs.rdf4j.org/rest-api/#_content_types).

Normally, using file --mime-type <file> provides the correct mime type. However, when running on a .ttl file, it returns wrong:
foo.ttl: text/plain instead of text/turtle

Does it exist a better way to solve this, then checking every file-ending, for each file?

asked Nov 12 at 9:50

J.doe

234

1

Edit file /etc/magic observe how this is done for other file types and add something for text/turtle
– Marichyasana
Nov 12 at 10:55

add a comment |

I am writing a bash script, that needs to check the different mime-types of different files. The files should support rdf4j REST API (http://docs.rdf4j.org/rest-api/#_content_types).

Normally, using file --mime-type <file> provides the correct mime type. However, when running on a .ttl file, it returns wrong:
foo.ttl: text/plain instead of text/turtle

Does it exist a better way to solve this, then checking every file-ending, for each file?

asked Nov 12 at 9:50

J.doe

234

1

Edit file /etc/magic observe how this is done for other file types and add something for text/turtle
– Marichyasana
Nov 12 at 10:55

add a comment |

I am writing a bash script, that needs to check the different mime-types of different files. The files should support rdf4j REST API (http://docs.rdf4j.org/rest-api/#_content_types).

Normally, using file --mime-type <file> provides the correct mime type. However, when running on a .ttl file, it returns wrong:
foo.ttl: text/plain instead of text/turtle

Does it exist a better way to solve this, then checking every file-ending, for each file?

asked Nov 12 at 9:50

J.doe

234

I am writing a bash script, that needs to check the different mime-types of different files. The files should support rdf4j REST API (http://docs.rdf4j.org/rest-api/#_content_types).

Normally, using file --mime-type <file> provides the correct mime type. However, when running on a .ttl file, it returns wrong:
foo.ttl: text/plain instead of text/turtle

Does it exist a better way to solve this, then checking every file-ending, for each file?

bash unix rdf rdf4j

asked Nov 12 at 9:50

J.doe

234

asked Nov 12 at 9:50

J.doe

234

asked Nov 12 at 9:50

J.doe

234

asked Nov 12 at 9:50

J.doe

234

asked Nov 12 at 9:50

J.doe

234

1

Edit file /etc/magic observe how this is done for other file types and add something for text/turtle
– Marichyasana
Nov 12 at 10:55

add a comment |

1

Edit file /etc/magic observe how this is done for other file types and add something for text/turtle
– Marichyasana
Nov 12 at 10:55

Edit file /etc/magic observe how this is done for other file types and add something for text/turtle
– Marichyasana
Nov 12 at 10:55

add a comment |

1 Answer
1

active

oldest

votes

You can use an alternative to file, for instance mimetype.

At least the following example file from the wikipedia entry on .ttl is recognized as text/turtle:

$ cat test.ttl
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix dc: <http://purl.org/dc/elements/1.1/> .
@prefix ex: <http://example.org/stuff/1.0/> .

<http://www.w3.org/TR/rdf-syntax-grammar>
 dc:title "RDF/XML Syntax Specification (Revised)" ;
 ex:editor [
 ex:fullname "Dave Beckett";
 ex:homePage <http://purl.org/net/dajobe/>
 ] .
$ mimetype test.ttl 
test.ttl: text/turtle

mimetype is provided by the package perl-file-mimeinfo in arch linux and by libfile-mimeinfo-perl on debian and ubuntu.

answered Nov 12 at 10:20

Socowi

6,1162724

cheers. Your solution makes it pssoble to check mimetype for ttl. But still missing support for nq, trix, n3 etc.
– J.doe
Nov 12 at 13:05

3

You can add mime types manually by editing /etc/mime.types or creating your own /usr/share/mime/text/yourfiletype.xml (see /usr/share/mime/text/turtle.xml for an example). You might need to run update-mime-database afterwards.
– Socowi
Nov 12 at 13:47

add a comment |

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1 Answer
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1 Answer
1

active

oldest

votes

You can use an alternative to file, for instance mimetype.

At least the following example file from the wikipedia entry on .ttl is recognized as text/turtle:

$ cat test.ttl
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix dc: <http://purl.org/dc/elements/1.1/> .
@prefix ex: <http://example.org/stuff/1.0/> .

<http://www.w3.org/TR/rdf-syntax-grammar>
 dc:title "RDF/XML Syntax Specification (Revised)" ;
 ex:editor [
 ex:fullname "Dave Beckett";
 ex:homePage <http://purl.org/net/dajobe/>
 ] .
$ mimetype test.ttl 
test.ttl: text/turtle

mimetype is provided by the package perl-file-mimeinfo in arch linux and by libfile-mimeinfo-perl on debian and ubuntu.

answered Nov 12 at 10:20

Socowi

6,1162724

cheers. Your solution makes it pssoble to check mimetype for ttl. But still missing support for nq, trix, n3 etc.
– J.doe
Nov 12 at 13:05

3

You can add mime types manually by editing /etc/mime.types or creating your own /usr/share/mime/text/yourfiletype.xml (see /usr/share/mime/text/turtle.xml for an example). You might need to run update-mime-database afterwards.
– Socowi
Nov 12 at 13:47

add a comment |

You can use an alternative to file, for instance mimetype.

At least the following example file from the wikipedia entry on .ttl is recognized as text/turtle:

$ cat test.ttl
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix dc: <http://purl.org/dc/elements/1.1/> .
@prefix ex: <http://example.org/stuff/1.0/> .

<http://www.w3.org/TR/rdf-syntax-grammar>
 dc:title "RDF/XML Syntax Specification (Revised)" ;
 ex:editor [
 ex:fullname "Dave Beckett";
 ex:homePage <http://purl.org/net/dajobe/>
 ] .
$ mimetype test.ttl 
test.ttl: text/turtle

mimetype is provided by the package perl-file-mimeinfo in arch linux and by libfile-mimeinfo-perl on debian and ubuntu.

answered Nov 12 at 10:20

Socowi

6,1162724

cheers. Your solution makes it pssoble to check mimetype for ttl. But still missing support for nq, trix, n3 etc.
– J.doe
Nov 12 at 13:05

3

You can add mime types manually by editing /etc/mime.types or creating your own /usr/share/mime/text/yourfiletype.xml (see /usr/share/mime/text/turtle.xml for an example). You might need to run update-mime-database afterwards.
– Socowi
Nov 12 at 13:47

add a comment |

You can use an alternative to file, for instance mimetype.

At least the following example file from the wikipedia entry on .ttl is recognized as text/turtle:

$ cat test.ttl
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix dc: <http://purl.org/dc/elements/1.1/> .
@prefix ex: <http://example.org/stuff/1.0/> .

<http://www.w3.org/TR/rdf-syntax-grammar>
 dc:title "RDF/XML Syntax Specification (Revised)" ;
 ex:editor [
 ex:fullname "Dave Beckett";
 ex:homePage <http://purl.org/net/dajobe/>
 ] .
$ mimetype test.ttl 
test.ttl: text/turtle

mimetype is provided by the package perl-file-mimeinfo in arch linux and by libfile-mimeinfo-perl on debian and ubuntu.

answered Nov 12 at 10:20

Socowi

6,1162724

You can use an alternative to file, for instance mimetype.

At least the following example file from the wikipedia entry on .ttl is recognized as text/turtle:

$ cat test.ttl
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix dc: <http://purl.org/dc/elements/1.1/> .
@prefix ex: <http://example.org/stuff/1.0/> .

<http://www.w3.org/TR/rdf-syntax-grammar>
 dc:title "RDF/XML Syntax Specification (Revised)" ;
 ex:editor [
 ex:fullname "Dave Beckett";
 ex:homePage <http://purl.org/net/dajobe/>
 ] .
$ mimetype test.ttl 
test.ttl: text/turtle

mimetype is provided by the package perl-file-mimeinfo in arch linux and by libfile-mimeinfo-perl on debian and ubuntu.

answered Nov 12 at 10:20

Socowi

6,1162724

answered Nov 12 at 10:20

Socowi

6,1162724

answered Nov 12 at 10:20

Socowi

6,1162724

answered Nov 12 at 10:20

Socowi

6,1162724

cheers. Your solution makes it pssoble to check mimetype for ttl. But still missing support for nq, trix, n3 etc.
– J.doe
Nov 12 at 13:05

3

You can add mime types manually by editing /etc/mime.types or creating your own /usr/share/mime/text/yourfiletype.xml (see /usr/share/mime/text/turtle.xml for an example). You might need to run update-mime-database afterwards.
– Socowi
Nov 12 at 13:47

add a comment |

cheers. Your solution makes it pssoble to check mimetype for ttl. But still missing support for nq, trix, n3 etc.
– J.doe
Nov 12 at 13:05

3

You can add mime types manually by editing /etc/mime.types or creating your own /usr/share/mime/text/yourfiletype.xml (see /usr/share/mime/text/turtle.xml for an example). You might need to run update-mime-database afterwards.
– Socowi
Nov 12 at 13:47

cheers. Your solution makes it pssoble to check mimetype for ttl. But still missing support for nq, trix, n3 etc.
– J.doe
Nov 12 at 13:05

You can add mime types manually by editing /etc/mime.types or creating your own /usr/share/mime/text/yourfiletype.xml (see /usr/share/mime/text/turtle.xml for an example). You might need to run update-mime-database afterwards.
– Socowi
Nov 12 at 13:47

add a comment |

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