Installing ImageMagick via SSH

ImageMagick is a library that enables, for example, PHP programs to manipulate graphics. ImageMagick can handle up to 100 different graphics formats, including .jpg, .png, .tif, etc.

• Log in to your managed server via SSH.

• Determine the latest released version, the “release tag”, of ImageMagick. The following command queries it directly from GitHub and stores it in the TAG variable:

  TAG=$(curl -fsSL https://api.github.com/repos/ImageMagick/ImageMagick/releases/latest | grep -oP '"tag_name":\s*"\K[^"]+')

  You can use the echo command to check which version was determined:

  echo "$TAG"

  The output will look something like this: 7.1.2-30

• Download the source code of the determined version using the wget command:

  wget -O ImageMagick.tar.gz "https://github.com/ImageMagick/ImageMagick/archive/refs/tags/${TAG}.tar.gz"

• Extract the archive using the following command:

  tar xfvz ImageMagick.tar.gz

• Change to the directory containing the source code using the cd command. Since the directory name contains the version number, use the previously set TAG variable:

  cd ImageMagick-${TAG}/ 

• Use the pwd command to display the absolute path of the directory. This will be needed later for the installation; the output will look something like this:

  /kunden/homepages/30/d339922114/htdocs/ImageMagick-7.1.2-30

• Prepare the program for compilation using the ./configure command. Since you do not have access rights for the directory specified in the script, use the --prefix option to install ImageMagick in a subdirectory of your home directory. Here is an example of how to enter the ./configure command:

  ./configure --prefix=/kunden/homepages/30/d339922114/htdocs/ImageMagick

• Enter the make command. If no error message appears, enter the make install command at the next prompt.

• The installation is complete. You can now use the ./ImageMagick/bin/convert command in your scripts to access the most commonly used ImageMagick functions.