title: How to upload files to azure blob storage?
body: <p>I need to upload files to azure blob container every day from local system. I use azcopy with sas for doing it.
  But what i encountered is that SAS for container keep changing on every refresh.
  So is there any better way i can upload files using python or azcopy.
  Or is there any way to get the SAS toke from the azure without login and pass that SAS token to azcopy command?
  as of now i use this command from azcopy</p>
  
  <pre><code>.\azcopy "Sourcefilepath" "Destblobpath?SAS_Token" --recurcive=true
  </code></pre>
  
  <p>Each day i should login to azure get the SAS token and pass for the above command. 
  i tried .\azcopy login and i get login successful, but i cant send files with</p>
  
  <pre><code>.\azcopy "Sourcepath" "Destpath"
  </code></pre>
  
  <p>Don't know where i'm doing wrong.</p>