In this article, we will discuss a common issue faced by Ubuntu users – ‘libtool not found on the path after installation’. This problem can occur even after successful installation of the libtool package. We will delve into the causes of this issue and provide a step-by-step guide to resolve it.
To fix the issue of libtool not being found on the path after installation in Ubuntu, you can locate the libtool executable using commands like
locate libtool or
whereis libtool. If libtool is not found in the PATH variable, you can add its directory to the PATH by modifying your shell configuration file (e.g.,
~/.bash_profile). After saving the changes and applying them, libtool should be accessible from any directory.
What is libtool?
Libtool is a generic library support script that hides the complexity of using shared libraries behind a consistent, portable interface. It allows developers to create portable and unambiguous executables from source code.
Understanding the PATH Variable
Before we proceed to the solution, it is important to understand the PATH variable. The PATH is an environment variable in Linux and other Unix-like operating systems that specifies a set of directories where executable programs are located.
In general, each executing process or user session has its own PATH setting.
If you have installed libtool but are unable to find it on the path, you can use the following commands to locate its executable:
locate command finds files by name. The
whereis command locates the binary, source, and manual page files for a command.
Checking the PATH Variable
To check if libtool is in your PATH, you can print the PATH variable using the following command:
This command will display a list of directories separated by colons. If libtool is correctly installed and on your PATH, you should see its directory listed here.
Adding libtool to the PATH
If libtool is not found in any of the directories listed in the PATH variable, you will need to add its directory to the PATH. This can be done by modifying your shell configuration file (e.g.,
Open the file in a text editor:
At the end of the file, add the following line:
Replace “/path/to/libtool” with the actual directory path where libtool is installed. After saving the changes to the shell configuration file, either open a new terminal or run the following command to apply the changes:
source command reads and executes commands from the file specified as its argument in the current shell environment.
By following these steps, you should be able to add libtool to your PATH and use it as intended. Remember, it’s important to ensure that the PATH variable is correctly set, as it allows you to run executables from any directory without having to specify the full path to the executable.
If you still face any issues, refer to the official Ubuntu documentation or seek help from the Ubuntu community.
whereis commands do not find libtool, it is possible that the package was not installed correctly. You can try reinstalling the libtool package using the package manager of your Ubuntu distribution, such as
To modify the shell configuration file, you can open it in a text editor using the
nano command followed by the file path. For example, to open the
~/.bashrc file, you can use the command
nano ~/.bashrc. Make the necessary changes to the file, save it, and then either open a new terminal or use the
source command to apply the changes to the current terminal session.
Yes, you can add libtool to your PATH using a different shell configuration file if you are using a shell other than Bash. The process may vary depending on the shell you are using. For example, if you are using the Zsh shell, you can modify the
~/.zshrc file instead of the
~/.bashrc file. Remember to use the appropriate commands and syntax for the specific shell you are using.
To verify if libtool is correctly added to your PATH, you can run the
echo $PATH command again after making the changes to your shell configuration file. If libtool is successfully added, you should see its directory listed in the output. Additionally, you can try running the
libtool command in the terminal. If it executes without any errors, libtool is likely properly configured in your PATH.