Let's use wget to download the patchelf CLI.

wget https://github.com/NixOS/patchelf/releases/download/0.18.0/patchelf-0.18.0-x86_64.tar.gz

Create a temporary directory for patchelf.

mkdir /tmp/patchelf

Extract the tar archive to the temporary directory.

tar -zxpf patchelf-0.18.0-x86_64.tar.gz --directory /tmp/patchelf

The tar file can now be removed.

patchelf-0.18.0-x86_64.tar.gz

And let's verify the patchelf CLI is working.

]# /tmp/patchelf/bin/patchelf --version
patchelf 0.15.0

Let's copy the patchelf CLI to the /usr/local/bin directory.

cp /tmp/patchelf/bin/patchelf /usr/local/bin

The temporary directory can now be removed.

rm -rf /tmp/patchelf

And let's create a symbolic link between /usr/local/bin/patchelf and /usr/local/patchelf.

ln -s /usr/local/bin/patchelf /usr/local/patchelf