Linux ldd command
Updated: 05/04/2019 by Computer Hope
![ldd command](/cdn/linux/ldd.gif)
On Unix-like operating systems, the ldd command prints shared library dependencies of programs and libraries.
This page covers the Linux version of ldd.
Description
ldd prints the shared libraries required by each program or shared library specified on the command line.
Syntax
ldd [OPTION]... FILE...
Options
--version | Print the version number of ldd. |
-v, --verbose | Print all information, including (for example) symbol versioning information. |
-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). |
-u, --unused | Print unused direct dependencies. |
--help | Display a help message and exit. |
Examples
ldd /bin/bash
Displays the shared library dependencies of the program /bin/bash. Output resembles the following:
linux-vdso.so.1 => (0x00007fff6f3fe000) libtinfo.so.5 => /lib/x86_64-linux-gnu/libtinfo.so.5 (0x00007f574c095000) libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f574be91000) libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f574bac7000) /lib64/ld-linux-x86-64.so.2 (0x00007f574c2e4000)
Related commands
ld — Link editor for object files.
pvs — Display the internal version information of dynamic objects within an ELF file.