What is the purpose of the bash built-in export command
A.
To allow disks to be mounted remotely
B.
To run a command as a process in a sub-shell
C.
To make the command history available to sub-shells
D.
To setup environment variables for applications
E.
To share NFS partitions for use by other systems on the network
Explanation:
From the man pages:
export -p The supplied names are marked for automatic export to the environment of subsequently executed commands. If the -f option is given, the names refer to functions. If no names are given, or if the -p option is supplied, a list of all names that are exported in this shell is printed. The -n option causes the export property to be removed from each name. If a variable name is followed by =word, the value of the variable is set to word.