What do chmod, chown, chgrp commands do?

1.	What do chmod, chown, chgrp commands do?
Answer» These are file management commands. These are used for: chmod - It CHANGES the permission set of a file CHOWN - It changes the ownership of the file. chgrp - It changes the group of the file. $ chmod g+w testfile It changes permission for a user group to write. $ chown sroy8091 testfile It changes the OWNER of testfile to sroy8091. $ chgrp MODERATORS testfile It changes a group of testfile to moderators.

Answer»

These are file management commands. These are used for:

$ chmod g+w testfile

It changes permission for a user group to write.
$ chown sroy8091 testfile

It changes the OWNER of testfile to sroy8091.

$ chgrp MODERATORS testfile

It changes a group of testfile to moderators.

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