cap_iab_dup - Linux
Overview
The cap_iab_dup command is used to create a duplicate of a given capability. This is useful when you want to use the same capability in multiple places or when you need to share the capability with another user.
Syntax
cap_iab_dup [options] <capability>
Parameters
capability: The capability to duplicate.
Options/Flags
-c, –clone
Clone the capability instead of duplicating it.
-f, –force
Force the duplication of the capability, even if it is currently in use.
-h, –help
Display help and exit.
-v, –verbose
Enable verbose output.
Examples
Duplicating a capability
To duplicate the CAP_NET_ADMIN capability, you would use the following command:
cap_iab_dup CAP_NET_ADMIN
Cloning a capability
To clone the CAP_NET_ADMIN capability, you would use the following command:
cap_iab_dup -c CAP_NET_ADMIN
Forcing duplication
To force the duplication of the CAP_NET_ADMIN capability, you would use the following command:
cap_iab_dup -f CAP_NET_ADMIN
Common Issues
Permission denied
If you get a "permission denied" error when trying to duplicate a capability, it means that you do not have the necessary permissions to do so. You will need to contact your system administrator to get the necessary permissions.
Capability in use
If you try to duplicate a capability that is currently in use, you will get an error message. You can use the -f option to force the duplication, but this is not recommended.
Integration
The cap_iab_dup command can be used with other Linux commands and tools to perform more advanced tasks. For example, you could use the cap_iab_dup command to create a duplicate of a capability and then use the setcap command to apply the duplicate capability to a file or directory.
Related Commands
cap_iab_get: Get the capabilities of a file or directory.cap_iab_set: Set the capabilities of a file or directory.setcap: Set the capabilities of a file or directory.