From LQWiki

Pipe function:

For Puppy linux:

Many console commands produce a text result and if one wishes to study or compare the values of a command change it is valuable to be able to save the command output to file. In "rxvt emulator" for "xorg" or a command window the ( > ) is able to feed command output text into a file. If you are used to a MS win product, be aware that the "rxvt" program is sensitive to which keyboard ENTER key that is used, the Inside Key always works, outside key, maybe if numlock is ON.

Example type:

1. ) iptables-save > iptabmychng.txt use a RETURN or ENTER key
2. ) iptables -vL > iplistingfirewall.txt press enter key