aarch64 Linux Android: The “Command Not Found” Dilemma

Are you facing the “command not found” error on your aarch64 Linux Android device? This issue can be quite frustrating, especially when you’re trying to execute essential commands. In this article, I’ll delve into the possible reasons behind this error and provide you with a comprehensive guide to resolve it. Let’s get started.

Understanding the “Command Not Found” Error

The “command not found” error typically occurs when the shell cannot locate the executable file for the command you’re trying to run. This can happen due to several reasons, such as:

• Incorrect PATH environment variable
• Missing or corrupted executable file
• Incorrect installation of the package containing the command

Now, let’s explore each of these reasons in detail.

1. Incorrect PATH Environment Variable

The PATH environment variable is a list of directories where the shell searches for executable files. If the directory containing the command is not in the PATH, you’ll encounter the “command not found” error.

To check your current PATH, open a terminal and type:

echo $PATH

Now, let’s see how to fix the PATH environment variable issue.

1.1 Adding a Directory to the PATH

Suppose you have a directory named “bin” that contains the executable file for the command you’re trying to run. To add this directory to your PATH, follow these steps:

1. Open your shell configuration file (e.g., “.bashrc” or “.zshrc”) using a text editor:
2. Append the following line to the file:
3. Save the file and exit the text editor.
4. Source the configuration file to update your PATH:

export PATH=$PATH:/path/to/binsource ~/.bashrc

Replace “/path/to/bin” with the actual path to the directory containing the executable file.

1.2 Removing a Directory from the PATH

Suppose you want to remove a directory from your PATH. Follow these steps:

1. Open your shell configuration file (e.g., “.bashrc” or “.zshrc”) using a text editor:
2. Locate the line that contains the directory you want to remove and delete it.
3. Save the file and exit the text editor.
4. Source the configuration file to update your PATH:

source ~/.bashrc

Now, let’s move on to the next possible cause of the “command not found” error.

2. Missing or Corrupted Executable File

Another reason for the “command not found” error is a missing or corrupted executable file. To resolve this issue, follow these steps:

1. Check if the executable file exists in the directory specified by the command:
2. If the file is missing, try reinstalling the package containing the command:
3. If the file is corrupted, you can try to repair it using the package manager:

ls /path/to/executablesudo apt-get install --reinstall package-namesudo apt-get install --fix-broken

Replace “/path/to/executable” with the actual path to the executable file and “package-name” with the name of the package containing the command.

3. Incorrect Installation of the Package Containing the Command

At times, the package containing the command may not be installed correctly. This can happen due to various reasons, such as interrupted installations or corrupted package files. To resolve this issue, follow these steps:

1. Check if the package is installed:
2. If the package is not installed, try installing it using the package manager:
3. If the package is already installed, try reinstalling it:

dpkg -l | grep package-namesudo apt-get install package-namesudo apt-get install --reinstall package-name

Replace “package-name” with the name of the package containing the command.

4. Additional Tips

Here are