How to index a genome.gff file? SNPcalling

Question

[BATMAN]

Hi, I would like to know how I can index a genome.gff file to visualize it in Artemis. The .gff file was generated with prokka.

I have tried:

(grep ^"#" WT.gff; grep -v ^"#" WT.gff | grep -v "^$" | grep "\t" | sort -k1,1 -k4,4n) > WT.sorted.gff
bgzip WT.sorted.gff
tabix -p gff WT.sorted.gff.gz

and nothing.

I also tried:

gt gff3 -sortlines WT.gff > WT.sorted.gff
bgzip WT.sorted.gff
tabix -p gff WT.sorted.gff.gz

and nothing either.

Help! All the best