bcftools update ID keeping only string after ';'

Question

[curious]

I have values in ID column of VCF that are like this:

"stringidontwant;stringiwant"

is there some high level way to keep stringiwant but get rid of stringidontwant,

like bcftools annotate --set-id + some command to alter %ID

Answer 1

[Pierre Lindenbaum]

 sed 's/^\([^\t]*\t[^\t]*\)\tstringidontwant\t/\1\tstringiwant\t/' in.vcf