term% ls -F
term% pwd
term% cat index.txt
NM(1)                       General Commands Manual                      NM(1)

       nm  -  print name list

       nm [ -gnopru ] [ file ... ]

       Nm prints the name list (symbol table) of each object file in the argu‐
       ment list.  If an argument is an archive, a  listing  for  each  object
       file in the archive will be produced.  If no file is given, the symbols
       in `a.out' are listed.

       Each symbol name is preceded by its value (blanks if undefined) and one
       of  the letters U (undefined), A (absolute), T (text segment symbol), D
       (data segment symbol), B (bss segment symbol), or  C  (common  symbol).
       If the symbol is local (non-external) the type letter is in lower case.
       The output is sorted alphabetically.

       Options are:

       -g     Print only global (external) symbols.

       -n     Sort numerically rather than alphabetically.

       -o     Prepend file or archive element name to each output line  rather
              than only once.

       -p     Don't sort; print in symbol-table order.

       -r     Sort in reverse order.

       -u     Print only undefined symbols.

       ar(1), ar(5), a.out(5)