How to obtain UUID in Linux

GUID (Global unique identifier) isMicrosoftName of UUID.
UUID (universal unique identifier)

Uuidgen can be used on HP and RedHat for generation,SolarisCommand: makeuuid

How to use C ++ProgrammingObtain UUID?
1. Install the libuuid library. libuuid. so.1 is included in e2fsprogs.SystemFor redhat7.3, downloadFTP: // 194.199.20.114/Linux/RedHat/7.3/en/OS/i386/RedHat/RPMS/e2fsprogs-1.27-3.i386.rpm

2. EditFileUUID. cpp

# Include <iostream>;
# Include <stdio. h>;
# Include <UUID/UUID. h>;

Int main ()
{
Uuid_t Uu;
Uuid_generate (UU );
STD: cout <UU <STD: Endl;
Int I;
For (I = 0; I <16; I ++)
{
Printf ("% x", UU);
}
Printf ("\ n ");
Return 0;
}

# G ++-C-g uuid. o uuid. cpp
# G ++-o-luuid UUID. o

Specifically,/usr/include/UUID. H has the uuid_t definition:
Typedef unsigned char uuid_t [16];