最近我注意到一件奇怪的事情，我在网上搜索时无法弄清楚。
并给予groupsid
$ groups
q
$ id
uid=1000(q) gid=1000(q) groups=1000(q)
但明确传递的参数会改变结果
$ groups q
q : q adm tty disk lp uucp dialout cdrom sudo audio dip video plugdev
users lpadmin pulse pulse-access sambashare vboxusers input wireshark docker libvirt
$ id q
uid=1000(q) gid=1000(q) groups=1000(q),4(adm),5(tty),6(disk),7(lp),10(uucp),20(dialout),24(cdrom),27(sudo),29(audio),30(dip),44(video),46(plugdev),100(users),108(lpadmin),122(pulse),123(pulse-access),124(sambashare),125(vboxusers),148(input),153(wireshark),155(docker),160(libvirt)
来自男人
概要
id [选项]...[用户]
描述
打印指定 USER 或（当省略 USER 时）当前用户的用户和组信息。
后
$ sudo -i -u q
$ groups
q adm tty disk lp uucp dialout cdrom sudo audio dip video plugdev users lpadmin pulse pulse-access sambashare vboxusers input wireshark docker libvirt
$ id
uid=1000(q) gid=1000(q) groups=1000(q),4(adm),5(tty),6(disk),7(lp),10(uucp),20(dialout),24(cdrom),27(sudo),29(audio),30(dip),44(video),46(plugdev),100(users),108(lpadmin),122(pulse),123(pulse-access),124(sambashare),125(vboxusers),148(input),153(wireshark),155(docker),160(libvirt)
/dev/vboxusb此问题对文件系统项访问有副作用。VirtualBox 等应用程序直到才能访问sudo -i -u q。
我使用的是 Ubuntu 18.04 LTS。如何修复？