New answers tagged programming
diff takes filenames as arguments -- you passed the data from the stdout of the command, instead. If you're using bash, zsh, or another similar shell you can use process substition: diff <(./program < inputfile) outputfile Or, POSIXly (you can also use a named pipe, but it's probably overkill): ./program < inputfile > /tmp/program-out diff ...
You could try to download the deb package and open it up using the file explorer. Then it is possible it will install. You can download the .deb on the official Debian site at https://www.debian.org/distrib/packages then use dpkg -i package.deb
Top 50 recent answers are included