On Mon, 17 Oct 2016, Bob Williams wrote:

I have a bash script to generate the sig featured below. When run from my user command line it works correctly, but when I run it from my crontab, it fails to get the plasma version.

You didn't show us the line in crontab. Does crontab execute the script as root? Can root get the plasma version? Roger -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org

On October 17, 2016 8:33:05 AM PDT, Bob Williams wrote:

I have a bash script to generate the sig featured below.

#!/bin/bash

# script to generate a topical linux mailsig

SIGFILE=/home/bob/Documents/Signatures/daily.sig

: > $SIGFILE # (re)creates an empty SIGFILE

echo "Bob Williams" >> $SIGFILE echo " System: " `uname -sr` >> $SIGFILE distro=" $(head -n 1 /etc/SuSE-release)" kde=`kf5-config -v | grep KDE` Qt=`kf5-config -v | grep Qt` plasma=`kcmshell5 -v | awk '{print $2}'` echo " Distro: $distro" >> $SIGFILE echo " Desktop: $kde, $Qt and Plasma: $plasma" >> $SIGFILE exit 0

When run from my user command line it works correctly, but when I run it from my crontab, it fails to get the plasma version. So the last line of output reads:

Desktop: KDE Frameworks: 5.26.0, Qt: 5.6.1 and Plasma:

The error message returned by the system is:

QXcbConnection: Could not connect to display

I'm guessing that cron is not running in graphical environment, but not sure why that would make a difference.

Can anyone suggest a solution/workaround, please?

Cache the plasma version in a file somewhere. Realistically, how often does it change? You could ask zypper I suppose, but it seems like a lot of trouble for something nobody reads. Ever. -- Sent from my Android phone with K-9 Mail. Please excuse my brevity. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org

17.10.2016 18:33, Bob Williams пишет:

I have a bash script to generate the sig featured below.

#!/bin/bash

# script to generate a topical linux mailsig

SIGFILE=/home/bob/Documents/Signatures/daily.sig

: > $SIGFILE # (re)creates an empty SIGFILE

echo "Bob Williams" >> $SIGFILE echo " System: " `uname -sr` >> $SIGFILE distro=" $(head -n 1 /etc/SuSE-release)" kde=`kf5-config -v | grep KDE` Qt=`kf5-config -v | grep Qt` plasma=`kcmshell5 -v | awk '{print $2}'` echo " Distro: $distro" >> $SIGFILE echo " Desktop: $kde, $Qt and Plasma: $plasma" >> $SIGFILE exit 0

When run from my user command line it works correctly, but when I run it from my crontab, it fails to get the plasma version. So the last line of output reads:

Desktop: KDE Frameworks: 5.26.0, Qt: 5.6.1 and Plasma:

The error message returned by the system is:

QXcbConnection: Could not connect to display

I'm guessing that cron is not running in graphical environment, but not sure why that would make a difference.

How do you expect it to get version of graphical environment if there is no graphical environment to start with?

Can anyone suggest a solution/workaround, please?

Do not use cron. If your script depends on presence of DE, run it when you are logged in DE. It's not as this information changes so often, so running it once on login would be enough. Otherwise you could of course export DISPLAY in cron command, but you may not even be logged in when cron task is executed.

On Mon, 17 Oct 2016 17:33, Bob Williams wrote:

I have a bash script to generate the sig featured below.

#!/bin/bash

# script to generate a topical linux mailsig

SIGFILE=/home/bob/Documents/Signatures/daily.sig

: > $SIGFILE # (re)creates an empty SIGFILE

echo "Bob Williams" >> $SIGFILE echo " System: " `uname -sr` >> $SIGFILE distro=" $(head -n 1 /etc/SuSE-release)"

May or may not work:

kde=`kf5-config -v | grep KDE` Qt=`kf5-config -v | grep Qt`

And here comes the blopper, that will not work for sure:

plasma=`kcmshell5 -v | awk '{print $2}'`

echo " Distro: $distro" >> $SIGFILE echo " Desktop: $kde, $Qt and Plasma: $plasma" >> $SIGFILE exit 0

When run from my user command line it works correctly, but when I run it from my crontab, it fails to get the plasma version. So the last line of output reads:

Desktop: KDE Frameworks: 5.26.0, Qt: 5.6.1 and Plasma:

The error message returned by the system is:

QXcbConnection: Could not connect to display

I'm guessing that cron is not running in graphical environment, but not sure why that would make a difference.

Can anyone suggest a solution/workaround, please?

TL;DR: Missing DISPLAY variable in enviornment from cron. What happens in detail: - a script from cron runs in a minimal environment. - only very few environment variables are defined at all. The command "kf5-config" wants / partially needs a working "DISPLAY". The command "kcmshell5" needs a set "DISPLAY" variable or it fails. Try with a extra line before / after the SIGFILE=.... line: [code] export DISPLAY=:0.0 [/code] Other variables may be needed also. try to start your script from an other script via a line: #/usr/bin/bash exec -c <your-sig-script> to simulate a empty environment. also see "help exec" for details on the "-c" option. - Yamaban. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org

Hi, Am Montag, 17. Oktober 2016, 16:33:05 CEST schrieb Bob Williams: [...]

echo " Desktop: $kde, $Qt and Plasma: $plasma" >> $SIGFILE exit 0

When run from my user command line it works correctly, but when I run it from my crontab, it fails to get the plasma version. So the last line of output reads:

Desktop: KDE Frameworks: 5.26.0, Qt: 5.6.1 and Plasma:

The error message returned by the system is:

QXcbConnection: Could not connect to display

I'm guessing that cron is not running in graphical environment, but not sure why that would make a difference.

Can anyone suggest a solution/workaround, please?

I would run a query on the rpm database: rpm --qf %{VERSION} -q plasma5-desktop Greetings from Bremen hartmut -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org