They indicate you do not have the unix bc calculator installed. It would be best to install that. But in this script, they are all part of the variable trapping and probably do not matter.Array
(
[0] => <fullpath>/freds/bevel: line 188: bc: command not found
[1] => <fullpath>/freds/bevel: line 189: bc: command not found
[2] => <fullpath>/freds/bevel: line 190: [: too many arguments
[3] => <fullpath>/freds/bevel: line 178: bc: command not found
[4] => <fullpath>/freds/bevel: line 179: [: -eq: unary operator expected
[5] => <fullpath>/xgen/freds/bevel: line 199: bc: command not found
[6] => <fullpath>/xgen/freds/bevel: line 200: bc: command not found
[7] => <fullpath>/freds/bevel: line 201: [: too many arguments
)
Array
(
[0] => display: unable to open X server `' @ error/display.c/DisplayImageCommand/426.
)
The last is caused by the -write show. Take that out, it was for my debugging.
-transparent white -write show: ford_result.png 2>&1', $c);