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POScripting Python for Linux commands
 

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    <p>I have a question. I have been really trying to learn Python. For a project, I want to make an ncurses GUI for my backup server. My backup server runs rdiff-backup, and I want to have the ncurses take in variable names and plug them into my script. I have been trying to do a lot of reading so I don't ask dumb questions.</p> <p>Here is my function for running the script:</p> <pre><code>def runScript(): # Cannot concatenate 'str' and 'list' objects #script = rdiff + rdiffArgs script = rdiff + ' ' + rdiffVerbosity + ' ' + rdiffStatistics \ + ' ' + clientName + '@' + clientHost + '::' + clientDir \ + ' ' + serverDir os.system(script) </code></pre> <p>What I originally thought would be neat was to add all the variables into a list, so I could just run say </p> <pre><code>script = rdiff + rdiffArgs </code></pre> <p>Is there a better way to do this without all the space concatenation?</p> <p>Thanks for your assistance</p> <p>EDIT: Let me post the whole script so far. I wasn't very clear and I really appreciate your help and patience</p> <pre><code> #!/usr/bin/env python import os import smtplib # Global variables rdiff = '/usr/bin/rdiff-backup' rdiffVerbosity = '-v5' rdiffStatistics = '--print-statistics' emailSmtp = 'smtp.gmail.com' smtpPort = '465' emailUsername = 'reports' emailPassword = '3kc9dl' emailTo = 'user@domain.com' emailFrom = 'internal@domain.com' serverName = 'root' serverHost = 'SV-Datasafe' serverDir = '/srv/backup/SV-Samba01' clientName = 'root' clientHost = 'SV-Samba01' clientDir = '/srv' rdiffArgs = rdiffArgs = [rdiffVerbosity, rdiffStatistics, \ clientName + '@' + clientHost + '::' \ +clientDir + ' ' + serverDir] time = '' dateStamp = datetime.now() def sendEmail(): subject = dateStamp + clientName body = clientDir + ' on ' + clientHost + ' backed up to ' + serverName + \ ' in the directory ' + serverDir + ' on ' + dateStamp message = """\ From: %s To: %s Subject: %s %s """ % (emailFrom, emailTo, subject, body) deliverEmail = smtplib.SMTP(emailSmtp, port=smtpPort) deliverEmail.login(emailUsername, emailPassword) def runScript(): # Cannot concatenate 'str' and 'list' objects #script = rdiff + rdiffArgs script = rdiff + ' ' + rdiffVerbosity + ' ' + rdiffStatistics \ + ' ' + clientName + '@' + clientHost + '::' + clientDir \ + ' ' + serverDir os.system(script) # TODO:: Logging </code></pre>
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      1. POScripting Python for Linux commands
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    1. CONot sure exactly what your question is, but from my understanding you want rdiffArgs to be a list of strings, and add the literal 'rdiff' to the front of that? I think you're looking for: script = [rdiff] + rdiffArgs Or ''.join([rdiff] + rdiffArgs) if you want it as a string.
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      1. USabeyer
    2. COThat would result in a list. The asker probably wants the resulting string because that is what's fed to os.system().
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      1. POScripting Python for Linux commands
      1. USHamish Grubijan
    3. CO`os.system()` shouldn't be used, so any answer that enables this should be considered incorrect.
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      1. POScripting Python for Linux commands
      1. USIgnacio Vazquez-Abrams
 

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