Splitting command line args with GNU parallel

Question

Using GNU parallel: http://www.gnu.org/software/parallel/

I have a program that takes two arguments, e.g.

$ ./prog file1 file2
$ ./prog file         


        

Answer 1

In Parallel's manual, it is said:

If no command is given, the line of input is executed ... GNU parallel can often be used as a substitute for xargs or cat | bash.

So take a try of:

generate command | parallel

Try to understand the output of this:

for i in {1..5};do echo "echo $i";done | parallel