Hi,
First of all, thank you so much for writing this up, it's a great help.
But (probably because I'm incompetent when it comes to the command line) I get the above error when using your last script ([bash]$ tr -s ' ' my_input_genome_assembly.fasta.out.detailed < | sed 's/^ *//g' | tr ' ' '\t' > my_input_genome_assembly.fasta.out.detailed.tab) on the RepeatMasker .out file:
-bash: syntax error near unexpected token `|'
I've put cat at the start of the command and it seems to work ok apart from skewed first row but it's not important for what I'm trying to do with the file.
Cheers!