$ id
uid=xxx05(opr) gid=xxx00(local) groups=xxx00(local),4(adm),20(dialout),109(lpadmin),501(operadores),502(vboxuser),xxx03(hrpt),xxx04(dosgroup),xxx07(vboxsf)
(with xxx replacing various numeric values that our sysadmin don't want on a public forum)
The id command shows:
$ id xxx00(local) ,4(adm) ,20(dialout) ,109(lpadmin) ,501(operadores ),502(vboxuser) ,xxx03( hrpt),xxx04( dosgroup) ,xxx07( vboxsf)
uid=xxx05(opr) gid=xxx00(local) groups=
(with xxx replacing various numeric values that our sysadmin don't want on a public forum)
The copy works without issue:
$ \cp --verbose /var/cache/ man/index. db /dev/null man/index. db' -> `/dev/null'
`/var/cache/
Where 'cp' is normally aliased to 'cp -ip' so it squawks about /dev/null existing, and that it can't preserve timestamps, hence the '\cp'.
The obvious permissions are fine, all users can read the file:
$ ls -l /var/cache/ man/index. db man/index. db
-rw-r--r-- 1 man root 634842 May 18 12:30 /var/cache/