[SOLVED] Retrieving current architecture for RPM

Issue

I'm automating RPM package building with rpmbuild. The files end up in the architecture subdirectory under RPMS.

Question - how do I retrieve, from a shell script, the architecture name of the host that RPM is using? It's not the same as arch command.

Solution

There's /usr/lib/rpm/rpmrc that translates known OS-level architecture names into canonical RPM architecture names. The following shell script does the job for me:

ARCH=`arch`
# OS-level architecture name, like 'i686'

ARCH=`cat /usr/lib/rpm/rpmrc | grep "buildarchtranslate: $ARCH" | cut -c21-`
# returns the translate line as "arch-from: arch-to"

ARCH=${ARCH/#*: /}
# strips the prefix up to colon and following space, returns arch-to.
# Assumes just one space after colon. If not, more regex magic is needed. 

Answered By - Seva Alekseyev

Answer Checked By - Pedro (WPSolving Volunteer)