Binutils is a collection of binary utilities, including:

* ar: creating modifying and extracting from archives
* nm: for listing symbols from object files
* objcopy: for copying and translating object files
* objdump: for displaying information from object files
* ranlib: for generating an index for the contents of an archive
* size: for listing the section sizes of an object or archive file
* strings: for listing printable strings from files
* strip: for discarding symbols (a filter for demangling encoded C++ symbols
* addr2line: for converting addresses to file and line
* nlmconv: for converting object code into an NLM

Install binutils if you need to perform any of these types of actions on
binary files. Most programmers will want to install binutils.