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Re:Ruby basics (1 viewing) (1) Guest
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TOPIC: Re:Ruby basics
#4529
ShriNi (User)
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Re:Ruby basics 3 Years, 10 Months ago Karma: 0  
Dir.entries returns an array with all the entries within the specified directory.

Dir.foreach provides the same feature
 
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#4530
ShriNi (User)
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Re:Ruby basics 3 Years, 10 Months ago Karma: 0  
Creating a Directory


The Dir.mkdir can be used to create directories:

Dir.mkdir("mynewdir"

We can also set permissions on a new directory
 
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#4531
ShriNi (User)
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Re:Ruby basics 3 Years, 10 Months ago Karma: 0  
Deleting a Directory:

The Dir.delete can be used to delete a directory. The Dir.unlink and Dir.rmdir perform exactly the same function and are provided for convenience.

Dir.delete("testdir"
 
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#4532
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Re:Ruby basics 3 Years, 10 Months ago Karma: 0  
One of the IO class methods is IO.readlines.

This method returns the contents of the file line by line.
 
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Re:Ruby basics 3 Years, 10 Months ago Karma: 0  
The IO.foreach Method:

This method also returns output line by line.

The difference between the method foreach and the method readlines is that the method foreach is associated with a block.


However, unlike the method readlines, the method foreach does not return an array
 
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Re:Ruby basics 3 Years, 10 Months ago Karma: 0  
Renaming and Deleting Files:


We can rename and delete files programmatically with Ruby with the rename and delete methods
 
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