How to perform the reverse of `xargs`?

Question

I have a list of numbers that I want to reverse. They are already sorted. `35 53 102 342` I want this: `342 102 53 35` So I thought of this: `echo $NUMBERS | ??? | tac | xargs` What's the ??? It should turn a space separated list into a line separated list. I'd like to avoid having to set `IFS`. Maybe I can use bash arrays, but I was hoping there's a command whose purpose in life is to do the opposite of xargs (maybe xargs is more than a one trick pony as well!!)

Accepted Answer

You can use `printf` for that. For example:

```
$ printf "%s
" 35 53 102 342
35
53
102
342
$ printf "%s
" 35 53 102 342|tac
342
102
53
35
```

How to perform the reverse of `xargs`?

Solution

Problem