pppkg originally was a shortcut for paging the opkg list command's output. opkg is the package manager of the firewall distribution OpenWRT .

Almost immediarely it was expanded to mimic another personal script that works with the output of lsof. Except that looking for ports and processes, It was almost immediately expanded to do a bit more while at the same time more thought was put into it so it wouldn't require no more than the letters of the English alphabet to serve a more practical use as a console utility where the only available keyboard layout is US-en to help minimize errors brought my muscle memory. It was expanded once more

If it's run by itself it the same thing as issueing `opkg list`. when a few more words are added after the command, they are used as the argument for grep -iE

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