awk '{print $3}' 1.gtf | sort | uniq -c
1.gtf
17909 3UTR
22746 5UTR
160456 CDS
170728 exon
17801 start_codon
17824 stop_codon
18968 transcript
gffread -T 1.refGene.gtf -E -o 1.refGene.gff -F
awk '{print $3}' 1.gff | sort | uniq -c
1.gff
160385 CDS
170601 exon
18968 transcript