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C Language > Learn C Language > How do you sort filenames in a directory?
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How do you sort filenames in a directory?

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Using strcmp function
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Tutor

Ls -l Ll give you it in sorted order alphabetically.
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At the $ prompt in the terminal(Ubuntu/Linux) ls|sort -V Note: | is a pipe symbol
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Trainer

I need to print out the file info based on file size or alphabetical order. How can I sort the result from Directory.GetFiles()?
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Depends on criteria, example: time: ls -lt or ls -lrt (reverse time) size: ls -lS or ls -lSr (reverse size)
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The idiomatic way to sort something in C is to use the qsort() function. For this to work, it's best if you can arrange to have all the file names collected into an array of pointers, and then you sort the array. This is not too hard, but it does require either a bit of dynamic-array management, or...
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The idiomatic way to sort something in C is to use the qsort() function. For this to work, it's best if you can arrange to have all the file names collected into an array of pointers, and then you sort the array. This is not too hard, but it does require either a bit of dynamic-array management, or that you introduce static limits on things (maximum length of filenames, maximum number of files). read less
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http://www.java-samples.com/showtutorial.php?tutorialid=573
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open dir,close dir
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Asst Professor

Hi Ajay, Arrange the file in the array of pinter and then you can sort the files.it is the concept of dynamic memory management.
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