On Sat, 2 Jul 2016 09:21:17 +0200, Sven Barth <[email protected]> wrote:
>Am 02.07.2016 07:55 schrieb "Bo Berglund" <[email protected]>: >> On Windows one has to start cmd with the wanted command as a >> parameter, what is the corresponding method on Linux from within >> FreePascal? > >Either fpsystem() from unit BaseUnix (this is the FPC variant of the C >system() call) or TProcess if you should need to provide password input on >a GUI. Thanks, this seems to work: if arg = '1' then cmd := 'ifup wlan0' else if arg = '0' then cmd := 'ifdown wlan0'; S := fpsystem('/usr/bin/sudo ' + cmd); Now I just have to deal with the error when executing an ifdown command when the wlan0 is already down. Strange that a command should result in an error message if the result of the command is already present at the start... Reminds me of some similar errors on a CNC machine controller I automated 15 years ago: delete filename -> ERROR: filename does not exist! Such messages should not exist either, if one wants to delete a file and it is not existing then the mission is accomplished from the start and there should not be an error message... In this case the Raspbian system generates: sudo ifdown wlan0 ifdown: interface wlan0 not configured and: sudo ifup wlan0 ifup: interface wlan0 already configured Well, luckily I saw it so I can handle these "errors" -- Bo Berglund Developer in Sweden _______________________________________________ fpc-pascal maillist - [email protected] http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
