# Minor change to Pengine install docs (Linux)? **URL:** \ **Category:** SWI-Prolog web site and services\ **Created:** [May 21, 2019, 2:53am UTC](https://swi-prolog.discourse.group/t/minor-change-to-pengine-install-docs-linux/685 "2019-05-21T02:53:55Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![prodog](https://avatars.discourse-cdn.com/v4/letter/p/57b2e6/32.png) [@prodog](https://swi-prolog.discourse.group/u/prodog)\ **Post date:** [May 21, 2019, 2:53am UTC](https://swi-prolog.discourse.group/t/minor-change-to-pengine-install-docs-linux/685/1 "2019-05-21T02:53:55Z")
On the Pengines download and install page: [https://pengines.swi-prolog.org/docs/getting\_started.html](https://pengines.swi-prolog.org/docs/getting_started.html) Is the following text: ```prolog Start run.pl as ./run.pl on Unix or double-click run.pl on Windows... ``` This does not work on Linux, at least not on my Ubuntu 18.04 box. First, most Linux boxes try to run files with a **pl** extension as Perl scripts. Just to test, I did execute `chmod +x run.pl` and tried to run it. I got a slew of Perl launch errors. Instead, I simply ran `swipl` with `run.pl` as the command line argument from the directory `run.pl` resides in (i.e. - the main Pengines directory): ```prolog swipl run.pl ``` Perhaps the docs should be updated to reflect this, with a note about making sure the `swipl` binary is in your environment PATH?