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shell script for conky getting errors....

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# 1  
Old 01-06-2012
shell script for conky getting errors....
So I have a script that does a greater than or less than with a variable. My problem is that when I checked the script from the command line I was getting this error..

I am not really familiar with shell scripting. I am trying to get this script to work with conky so that it will do the functions and give the output. I got this script online, so it might be done all wrong...

Code:
./wlanscript.sh: line 23: [: : integer expression expected
./wlanscript.sh: line 4: [: : integer expression expected
./wlanscript.sh: line 4: [: : integer expression expected
./wlanscript.sh: line 6: [: : integer expression expected
./wlanscript.sh: line 8: [: : integer expression expected
./wlanscript.sh: line 10: [: : integer expression expected

Code:
#! /bin/bash
function dload()
{
    if [ "$lq" -lt 100 ] || [ "$lq" -gt 65 ]; then
        echo '${image /home/kris/.images/wlan100.png -s 94x79 -p 10,25}'
    elif [ "$lq" -lt 66 ] && [ "$lq" -gt 55 ]; then
        echo '${image /home/kris/.images/wlan50.png -s 94x79 -p 10,25}'
    elif [ "$lq" -lt 56 ] && [ "$lq" -gt 49 ]; then
        echo '${image /home/kris/.images/wlan40.png -s 94x79 -p 10,25}'
    elif [ "$lq" -lt 50 ] && [ "$lq" -gt 5 ]; then
        echo '${image /home/kris/.images/wlan5.png -s 94x79 -p 10,25}'
    fi


}
function usage()
{
echo '${image /home/kris/.images/wlan0.png -s 94x79 -p 10,25}'
}

lq=$(iwconfig wlan0|grep 'Link Quality:'|grep :|grep --max-count=1 -o '\:\([0-9]\+\)'|grep --max-count=1 -o '\([0-9]\+\)')

if [ "$lq" -lt 5 ]
then
    usage
else
    dload
fi

# 2  
Old 01-06-2012
For a test. Just after setting the value of $lq , try displaying the value:
Code:
echo "lq = $lq"

Assuming that the value is definitely an integer number, then lose the double quotes in all your integer comparisons.
# 3  
Old 01-06-2012
I dont want to sound stupid with this question, but where do you want me to set it in the code that I posted?
# 4  
Old 01-06-2012
I assume you want the Signal Level?

My iwconfig has values separated by "=".
Code:
root@bt > iwconfig wlan0|grep 'Link Quality=' 
          Link Quality=56/70  Signal level=-54 dBm

So, the following statement gives me the Signal Strength
Code:
iwconfig wlan0|grep 'Link Quality=' | grep --max-count=1 -o '\=\([0-9]\+\)' | grep --max-count=1 -o '\([0-9]\+\)'
60

If the above does not work, paste the output of iwconfig wlan0

Try this also...
For Signal Level
Code:
root@bt > iwconfig wlan0 | sed -n 's/.*Signal level[:=]-\([0-9]*\).*/\1/gp'
56

Usage in your script would be
Code:
lp=$( iwconfig wlan0 | sed -n 's/.*Signal level[:=]-\([0-9]*\).*/\1/gp' )

--ahamed
Last edited by ahamed101; 01-06-2012 at 11:46 PM..
# 5  
Old 01-06-2012
So this was the output:

Code:
iwconfig eth1 | sed -n 's/.*Signal level[:=]-\([0-9]*\).*/\1/gp'
gave me nothing back
M1330:~$ sudo iwconfig eth1 | sed -n 's/.*Signal level[:=]-\([0-9]*\).*/\1/gp'
46 Gave me a signal back

It only works when I use sudo. And my wireless uses eth1. I need to find a way to get past the sudo iwconfig eth1 thing.....any ideas? As long as I use sudo I can get a signal # back. If I don't use sudo, then nothing... The only way that I was able to get the bitrate and ssid is by doing sudo conky. If I do just conky, then those two things won't show up. It's like their hidden behind root priveleges for some reason...
Last edited by krisdeniseriley; 01-07-2012 at 12:06 AM..
# 6  
Old 01-07-2012
Yes, iwconfig/ifconfig etc are admin commands. Looks like sudo is configured for the user you are trying with. So there shouldn't be a problem.

--ahamed
# 7  
Old 01-07-2012
So how could I get rid of the sudo way with the conky scripts?
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