/usr/share/atlc/examples/coax-500-200.bmp.txt is in atlc-examples 4.6.1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 | coax-500-200.bmp 2 Er= 1.00 Zo= 54.919 Ohms C= 60.7 pF/m L= 183.2 nH/m v= 2.998e+08 m/s v_f= 1.000 VERSION= 4.6.0
|