/etc/julia/juliarc.jl is in julia-common 0.4.5-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | # This file should contain site-specific commands to be executed on Julia startup
# Users should store their own personal commands in homedir(), in a file named .juliarc.jl
|