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# 1  
Old 02-16-2010
Python and logname
How would i do this in python

In bash i would do below and this would add the users logname to a file
Quote:
echo "$(logname)" >> test.txt
This write the logname ie James to test.txt

But how would i do it in python this doesnt work below and ive tried different ways but cannot find an answer
Quote:
os.system("echo '$(logname)' >> test.txt")
But this just writes $(logname) to test.txt

Id really apprciate any helpSmilie
# 2  
Old 02-16-2010
Code:
os.system("echo ${LOGNAME} >> test.txt")

or
Code:
os.system("echo $LOGNAME >> test.txt")

# 3  
Old 02-16-2010
Ah! i tried that just got the wrong brackets, i should of know thatSmilie

ThankYouSmilieThankYouSmilieYhankYouSmilie
# 4  
Old 02-16-2010
Hey dave100:

The following is redundant and inefficient and needlessly complex:
Code:
echo "$(logname)" >> test.txt

You are capturing the output of logname only to echo it into test.txt, when you could have redirected it directly using
Code:
logname >> test.txt

With python:
Code:
os.system("echo ""$(logname)"" >> test.txt")

or
Code:
os.system("logname >> test.txt")


Alister
# 5  
Old 02-16-2010
Thanks all, your the best,Smilie that was last thing almost i had to work out, only thing left now
is to work out how to restart the python script from within its-self, but thats another problem
no doubt i will be posting another thread tomorrowSmilie

Dave
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