The test(1) command (also known as '[') does not use
the '==' syntax for testing equality, which is a
feature of bash's '[[' builtin. String equality
is tested with '=', and numeric equality with '-eq'.
This eliminates a series of warnings when running
BuildLinux.sh on Debian-derived systems:
[schwarzgerat](0) $ ./BuildLinux.sh -u
./linux.d/debian: line 39: [: ==: unary operator expected
./linux.d/debian: line 39: [: ==: unary operator expected
./linux.d/debian: line 42: [: ==: unary operator expected
nick black
MackBambu