How can I see installed packages versions and
Code:
]$ rpm -q --qf="%{name}-%{version}-%{release}\n" somePackage
somePackage-4.5.3-28.1
]$ rpm -q --qf="%{version}\n" somePackage
somePackage-4.5.3-28.1
4.5.3
include the values in coditions inside build scripts
If you mean .spec files:
Code:
Requires: /bin/bash /usr/bin/perl anotherPackage
# or:
Requires: somePackage >= 4.5.6, anotherPackage >= 0.1
# or:
Requires: somePackage
Requires: anotherPackage
Best read the "Max RPM" online doc and your distro's requirements before building packages if you're going to distribute them or have people download them.