Trying to find perl logic

[Asad]

Hi All ,

I have a requirement in Linux environement to check for an
application pre-requisites if rpm's are installed or not .

Like rpm -qa --queryformat "%{NAME}-%{VERSION}-%{RELEASE}\n"
compat-libstdc++-*

rpm -q --queryformat "%{NAME}-%{VERSION}-%{RELEASE}\n" glibc-common-*

Where glibc-common- and compat-libstdc++- are rpm's . And I have for this
application to check 10 more rpm's in the list.

The other complexity is these rpm's have major and minor numbers . So the
rpm's should have minimum major number which would be in the list of rpm's
.Higher than that is ok .

for example :compat-libstdc++-296-2.96-138 is minimum version(major number
) required for the application to run sucessfully .

Any help in the right direction .



**

Thanks,

[Shlomi Fish]

Hi Asad,

One option for you would be to parse the output of rpm -q --queryformat or rpm
-qa --queryformat. For doing this, look at:

* https://metacpan.org/release/IPC-Run

* https://metacpan.org/module/IPC::System::Simple

This functionality may also be provided by librpm (not sure about that) and
there are some rpm-related Perl wrappers for it on CPAN:

https://metacpan.org/search?q=rpm

Mageia Linux ships with perl-RPM2-1.0-5.mga3 and perl-RPM4-0.31-1.mga3 .

I sincerely hope all of this will help you.

Regards,

Shlomi Fish

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