file - Determine the file type.ldd - Print the shared object dependencies.ltrace - Prints all functions called at runtime by the library.hexdump - Print file contents in ASCII, decimal, hexadecimal or octal.strings - Print the strings of printable characters in files.readelf - Display information about ELF (Executable and Linkable File format), used when file command interprets file as ELFobjdump - Prints assembly instructions of file.nm - Prints information about variables and functions from the binary. Useful when don't have access to source code.gdb