Ubuntu Server 16.04安装imgmin后提示command not found求助

Let’s work through this issue step by step—this is a common hiccup after compiling software from source, and it’s usually straightforward to fix.

Step 1: Confirm if imgmin was actually installed #

First, let’s check if the imgmin executable exists anywhere on your system. Run this search command:

sudo find / -name imgmin -type f

• If the search returns a path like /usr/local/bin/imgmin, the binary was installed successfully, and the problem is likely with your shell’s PATH environment variable.
• If no results show up, that means make install didn’t copy the binary to a system directory—even though it didn’t throw an explicit error.

Step 2: Fix PATH issues (if the binary exists) #

Ubuntu 16.04 typically includes /usr/local/bin (the default install location for source-compiled tools) in bash’s default PATH, but this can sometimes get misconfigured. Let’s verify:

echo $PATH

Look for /usr/local/bin in the output. If it’s missing:

• Temporary fix (works only for your current session):

  export PATH=$PATH:/usr/local/bin
  

  Try running imgmin original.jpg optimized.jpg again—this should work now.
• Permanent fix (persists across reboots):
  Open your bash profile file in a text editor:

  nano ~/.bashrc
  

  Add this line at the bottom of the file:

  export PATH=$PATH:/usr/local/bin
  

  Save and exit (press Ctrl+O, hit Enter, then Ctrl+X), then reload the profile to apply changes:

  source ~/.bashrc
  

Step 3: Manually install the binary (if it wasn’t found) #

If the find command didn’t locate imgmin, go back to the directory where you compiled the project:

cd imgmin/src

Check if the compiled binary exists here:

ls -l imgmin

If you see an executable file named imgmin, copy it manually to /usr/local/bin (the standard directory for user-compiled tools):

sudo cp imgmin /usr/local/bin/

Now test the imgmin command again—it should work as expected.

Bonus: Verify the install process (optional) #

If you want to double-check the installation flow, re-run sudo make install and watch the output closely. You should see a line similar to:

installing imgmin to /usr/local/bin

If you don’t see this line, there might be a build configuration issue. Try re-running the configure step with an explicit prefix to enforce the install path:

./configure --prefix=/usr/local
make
sudo make install

内容的提问来源于stack exchange，提问作者Niranda