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In a bash script, I have several rsync statements. Every rsync will prompt for typing password, and defeats very much the automation of doing the job using a script. How to improve this? The destination path of rsync statements are either network drive connected via SAMBA or on a SSH server.

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What OS are you running that script in? From the comments below, I guess OS X, but I wouldn’t want to answer without you specifying it. –  kopischke Aug 3 '12 at 9:25

2 Answers 2

up vote 3 down vote accepted

Generate a SSH key pair, upload the public half to the server, and put the private half in the local agent.

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What if the server is not SSH accessible? In Mac OS X 10.6.8, I connect to smb://host.com/mydir via Finder (Go -> Connect to Server menu option). –  Problemaniac Jul 23 '12 at 19:07
    
SMB URLs accept a username and password. –  Ignacio Vazquez-Abrams Jul 23 '12 at 19:08
    
Do you mean put my user name and password explicitly in my Bash script like smb://foouser:bar@host.com/mydir? –  Problemaniac Jul 23 '12 at 19:09

The generic method for repeating the same string in shell is:

yes "string" ¦ command args

Or for non-repetitive, complex string:

echo -e "first\nsecond\n..." ¦ command args
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