consider the following java program:
class PrintName{
public static void main(String[] args){
System.out.println("Hi " + args[0]);
}
}
Now I just compile and execute it from console (I'm on Ubuntu server):
~$:javac PrintName.java
~$:java PrintName "Fernando"
I get the next output:
Hi Fernando
I know there are commands like 'yes' in Linux, with which I can get infinite stream of data. My idea is to do something like this:
yes "Fernando" | java PrintName >> my_file.txt
I want to be able to pass "infinite" Fernando's to my program and have it run infinitely many times, then be able to manipulate the STDO to redirect to some file.
I don't know if I explained it clearly, sorry for my poor handling of the English language. Thank you very much for your time.
This is where you want the xargs command:
yes Fernando | xargs java PrintName
xargs takes each line of stdin, and passes it as command line arguments to the given command.
To redirect it to a file, you can wrap that in a grouping construct:
{ yes Fernando | xargs java PrintName; } >> my_file.txt
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