Generate a configuration script from the specified template (even if the input file has not changed) and write the output to a file

Generate configuration scripts to automatically configure software source code packages.
More information: <https://www.gnu.org/software/autoconf>.
Trick copyright: tl;dr; <https://github.com/tldr-pages/tldr>

autoconf --force --output={{outfile}} {{template-file}}

click the source code to copy install autoconf on any operating system with command-not-found.com