/home/alex>cd /usr/bin/

/usr/bin>strings perl | grep /usr
/usr/lib64/perl5/CORE

/usr/bin>ldd perl
        linux-vdso.so.1 (0x00007ffe43ef0000)
        libperl.so => /usr/lib64/perl5/CORE/libperl.so (0x00007f2387f43000)
        libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f2387d26000)
        libnsl.so.1 => /lib64/libnsl.so.1 (0x00007f2387b0c000)
        libdl.so.2 => /lib64/libdl.so.2 (0x00007f2387908000)
        libm.so.6 => /lib64/libm.so.6 (0x00007f23875ff000)
        libcrypt.so.1 => /lib64/libcrypt.so.1 (0x00007f23873c7000)
        libutil.so.1 => /lib64/libutil.so.1 (0x00007f23871c4000)
        libc.so.6 => /lib64/libc.so.6 (0x00007f2386dfb000)
        /lib64/ld-linux-x86-64.so.2 (0x00007f2388327000)

/usr/bin>strings /usr/lib64/perl5/CORE/libperl.so | grep /usr
/usr/local/lib64/perl5
/usr/local/share/perl5
/usr/lib64/perl5/vendor_perl
/usr/share/perl5/vendor_perl
/usr/lib64/perl5
/usr/share/perl5

/usr/bin>./perl -E 'say for @INC'
/usr/local/lib64/perl5
/usr/local/share/perl5
/usr/lib64/perl5/vendor_perl
/usr/share/perl5/vendor_perl
/usr/lib64/perl5
/usr/share/perl5
.

/usr/bin>ls -l perl perl5.22.2
lrwxrwxrwx 1 root root    10 Jan  8  2017 perl -> perl5.22.2*
-rwxr-xr-x 1 root root 10376 Apr 30  2016 perl5.22.2*

/usr/bin>