How to install hd2u ------------------- First, you need some UNIX system which have some basic C development tools and popt library alredy installed. Note: If you're using some package management tool on your system you should have also installed so called 'development' package of popt library (popt-dev or popt-devel, etc.) so required header files are also installed. After you sucessfuly downloaded and unpacked source tarball, do the following in source directory: $ ./configure $ make $ make install This will build and install 'dos2unix' into default location, which is /usr/local/bin . If you want to use another prefix than /usr/local use for example: $ ./configure --prefix=/usr This will install 'dos2unix' into /usr/bin . For more information use: $ ./configure --help