Ldd< executable file name >; See which system dynamic link libraries nm; See what symbols are in the executable file. Strip; Removing the symbol table can simplify the executable file. If we want to extract some text information from executable programs, we can also use strings command strings; Dynamic * * * libraries on Linux operating system can be roughly divided into three categories: 1, operating system-level * * libraries and basic system tool libraries such as libc.so, libz.so, libpthread.so, etc. These system libraries will be placed in the /lib and /usr/lib directories. If it is a 64-bit operating system, there will be/. If the operating system has a graphical interface, there will be a /usr/X 1 1R6/lib directory.