I made a bash script to install a software package on a Linux system. There are 4 packages I can use to install the software:
I know when to install which package on which Linux server manually, but I would like to find out "automatically" (in my bash script) which one I have to install.
Is there any command to find out? I already know there is a way to find out the architecture (32-bit or 64-bit) via the "arch" command, but I do not know how to find out which package I need.
uname -m or arch gives you the architecture (x86_64 or similar).
You can probably figure out whether your system is based on RPM or DEB (e.g. Ubuntu is DEB-based) by asking both variants which package installed /bin/ls:
dpkg -S /bin/ls
will print
coreutils: /bin/ls
on a DEB-based system.
rpm -q -f /bin/ls
will print
coreutils-5.97-23.el5_6.4
on an RPM-based system (with probably different version numbers).
On the "wrong" system each of these will give an error message instead.
if dpkg -S /bin/ls >/dev/null 2>&1
then
case "$(arch)" in
x86_64)
sudo dpkg -i x86_64.deb;;
i386)
sudo dpkg -i x86.deb;;
*)
echo "Don't know how to handle $(arch)"
exit 1
;;
esac
elif rpm -q -f /bin/ls >/dev/null 2>&1
then
case "$(arch)" in
x86_64)
sudo rpm -i x86_64.rpm;;
i386)
sudo rpm -i x86.rpm;;
*)
echo "Don't know how to handle $(arch)"
exit 1
;;
esac
else
echo "Don't know this package system (neither RPM nor DEB)."
exit 1
fi
Of course, all this only makes sense in case you know what to do then, i.e. if you know which package is to be installed on which package system with which architecture.