func delgroup(c cmd, conn *ec2.EC2, args []string) {
run := parallel.NewRun(40)
for _, g := range args {
g := g
run.Do(func() error {
var ec2g ec2.SecurityGroup
if secGroupPat.MatchString(g) {
ec2g.Id = g
} else {
ec2g.Name = g
}
_, err := conn.DeleteSecurityGroup(ec2g)
if err != nil {
errorf("cannot delete %q: %v", g, err)
return errgo.Newf("error")
}
return nil
})
}
if run.Wait() != nil {
os.Exit(1)
}
}