$hists "aws s3 cp"
16160  aws s3 cp s3://mybucket/air2008/10 .
16254  hists "aws s3 cp"

type hists
hists is a function
hists ()
{
    history 15000 | grep "$@"
}

"aws s3 cp"
09:40:44/csv $hists aws s3 cp
grep: s3: No such file or directory
grep: cp: No such file or directory