Finding binary dependencies in Linux Operating System

Update on:
Oct 5, 2021

In this article, we are going to check the executable. We will find out which string is present in it by using the string command.


Besides having a terminal open, make sure you have a binary present in your directory.

Find dependencies

  • First, we will check the executable. Run the following command:
$ file binary_name
  • Now we will write a command to find strings within the binary. Run the following command:
$ strings binary_name
  • We can hexdump a file by running the following command:
$ od -tx1 binary_name
  • We can list the symbols in the binary by running the following command:
$ nm binary_name
  • You can check which shared library it has been linked with by running the following command:
$ ldd binary_name

How it works

Now we will look at an explanation of the previous commands:

  • We used the file command to get the information about the binary. We also got the architecture information by running the file command.
  • The string command will return the string within that binary file.
  • By running the od command, you will get the hexdump of the file.
  • There are symbols present in the binary. You can list those symbols by running the nm command.
  • By running the ldd command, you can check which shared library your binary is linked with.

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