How to do chown or chgrp

[loial]

What is the best way to run the unix chown and chgrp commands in Java?

I only need to run these commands on one file at at time.

 

[Arne Vajhøj]

What is the best way to run the unix chown and chgrp commands in Java?

I only need to run these commands on one file at at time.

Runtime exec or the newer ProcessBuilder.

Arne

 

[Roedy Green]

What is the best way to run the unix chown and chgrp commands in Java?

I only need to run these commands on one file at at time.

see http://mindprod.com/jgloss/exec.html

If you need speed, you will want to write some JNI or find a JNI
library that already does what you want.

http://mindprod.com/jgloss/jni.html
--
Roedy Green Canadian Mind Products http://mindprod.com
The first 90% of the code accounts for the first 90% of the development time.
The remaining 10% of the code accounts for the other 90% of the development
time.
~ Tom Cargill Ninety-ninety Law

 

[Arne Vajhøj]

Surely the 'Java' way (in 1.7 at least) is

java.nio.file.Files.setPosixFilePermissions

As owner and group are not in PosixFilePermission
then surely not.

But it is close.

Files getFileAttributeView with PosixFileAttributeView will
provide setOwner and set Group for a programmatic solution.

Arne

PS: There is also Files setOwner but as it has no setGroup, then I
would go for the other.

 

[Roedy Green]

Ah yes, setPosixFilePermissions would be chmod.

How about Files.setOwner ?
--
Roedy Green Canadian Mind Products http://mindprod.com
The first 90% of the code accounts for the first 90% of the development time.
The remaining 10% of the code accounts for the other 90% of the development
time.
~ Tom Cargill Ninety-ninety Law