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Re:Ruby basics (1 viewing) (1) Guest
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TOPIC: Re:Ruby basics
#4535
ShriNi (User)
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Re:Ruby basics 3 Years, 10 Months ago Karma: 0  
File Modes and Ownership

Use the chmod method with a mask to change the mode or permissions/access list of a file
 
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#4536
ShriNi (User)
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Re:Ruby basics 3 Years, 10 Months ago Karma: 0  
Dir.tmpdir provides the path to the temporary directory on the current system, although the method is not available by default.


To make Dir.tmpdir available it's necessary to use require 'tmpdir'.
 
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#4537
ShriNi (User)
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Re:Ruby basics 3 Years, 10 Months ago Karma: 0  
We can use Dir.tmpdir with File.join to create a platform-independent temporary file.
 
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#4538
ShriNi (User)
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Re:Ruby basics 3 Years, 10 Months ago Karma: 0  
The execution and the exception always go together.

If we are opening a file which does not exist then if we did not handle this situation properly then your program is considered to be of bad quality.
 
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Re:Ruby basics 3 Years, 10 Months ago Karma: 0  
The program stops if an exception occurs.
. So exceptions are used to handle various type of errors which may occur during a program execution and take appropriate action instead of halting program completely.
 
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#4540
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Re:Ruby basics 3 Years, 10 Months ago Karma: 0  
Ruby provide a nice mechanism to handle exceptions.

. We enclose the code that could raise an exception in a begin/end block and use rescue clauses to tell Ruby the types of exceptions we want to handle.
 
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