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===== Check Architecture & Distribution =====
==== Check Architecture ====
To check if system is running a 32 (Raspberry) or 64 (X86) architecture, use one of the following commands:
<code>
# dpkg --print-architecture
-------------------------
armhf
</code>
<code>
# getconf LONG_BIT
------------------
32
</code>
<code>
# file /lib/systemd/systemd
-------------------------
/lib/systemd/systemd: ELF 32-bit LSB pie executable, ARM, EABI5 version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux-armhf.so.3, BuildID[sha1]=1dc619f043235803cc3339a671c7f0821b733d93, for GNU/Linux 3.2.0, stripped
</code>

==== Required compilers ====
GCC is also used to cross compile Linux applications. Applications can be compiled for 32-bit or 64-bit Linux systems.
^Architecture^Compilers^
|32-bit|arm-linux-gnueabihf-gcc \\ arm-linux-gnueabihf-g++|
|64-bit|aarch64-linux-gnu-gcc \\ aarch64-linux-gnu-g++|