GNU-sed BusyBox-sed s.\..X. UD TR s(\((X( UD[0a] error+bug?[1a] s.[.].X. UD?[2a] TR?[2b] s+9\++X+ UD[0b] bug?[1b] s&x&_\&_& TR TR s1\(x\)1\11 UD[0c] bug?[1c] s1\(xo\)\11X1 UD[0d] bug?[1d] sw9\wwXw UD[0e] bug?[1e]