$ file strstr strstr: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 3.2.0, BuildID[sha1]=f09b9ae65046d6650a9b7007a9aa5d6d472a2d06, not stripped
$ file strstr ld-linux- x86-64. so.2, for GNU/Linux 3.2.0, BuildID[ sha1]=f09b9ae65 046d6650a9b7007 a9aa5d6d472a2d0 6, not stripped
strstr: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/