ldd man page on ElementaryOS

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LDD(1)			   Linux Programmer's Manual			LDD(1)

NAME
       ldd - print shared library dependencies

SYNOPSIS
       ldd [OPTION]... FILE...

DESCRIPTION
       ldd  prints  the	 shared	 libraries  required by each program or shared
       library specified on the command line.

   Security
       In the usual  case,  ldd	 invokes  the  standard	 dynamic  linker  (see
       ld.so(8))  with the LD_TRACE_LOADED_OBJECTS environment variable set to
       1, which causes the linker to display  the  library  dependencies.   Be
       aware,  however,	 that  in some circumstances, some versions of ldd may
       attempt to obtain the dependency information by directly executing  the
       program.	 Thus, you should never employ ldd on an untrusted executable,
       since this may result in the execution  of  arbitrary  code.   A	 safer
       alternative when dealing with untrusted executables is:

	   $ objdump -p /path/to/program | grep NEEDED

OPTIONS
       --version
	      Print the version number of ldd.

       -v --verbose
	      Print all information, including, for example, symbol versioning
	      information.

       -u --unused
	      Print unused direct dependencies.	 (Since glibc 2.3.4.)

       -d --data-relocs
	      Perform relocations and report any missing objects (ELF only).

       -r --function-relocs
	      Perform relocations for both data	 objects  and  functions,  and
	      report any missing objects or functions (ELF only).

       --help Usage information.

NOTES
       The  standard  version  of  ldd	comes with glibc2.  Libc5 came with an
       older version, still present on some systems.  The long options are not
       supported  by the libc5 version.	 On the other hand, the glibc2 version
       does not support -V and only has the equivalent --version.

       The libc5 version of this program will use the name of a library	 given
       on the command line as-is when it contains a '/'; otherwise it searches
       for the library in the standard locations.   To	run  it	 on  a	shared
       library in the current directory, prefix the name with "./".

BUGS
       ldd does not work on a.out shared libraries.

       ldd  does  not  work  with some extremely old a.out programs which were
       built before ldd support was added to the compiler  releases.   If  you
       use  ldd on one of these programs, the program will attempt to run with
       argc = 0 and the results will be unpredictable.

SEE ALSO
       ld.so(8), ldconfig(8)

COLOPHON
       This page is part of release 3.54 of the Linux  man-pages  project.   A
       description  of	the project, and information about reporting bugs, can
       be found at http://www.kernel.org/doc/man-pages/.

				  2012-07-16				LDD(1)
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