ls -l|head seems to look at all files in directory

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ls -l|head seems to look at all files in directory

From:	Reuben Thomas
Subject:	ls -l\|head seems to look at all files in directory
Date:	Mon, 25 May 2009 14:43:50 +0100 (BST)
User-agent:	Alpine 2.00 (DEB 1167 2008-08-23)

Hi,

If I do "ls -l |head" on a directory with many files in it, it takes a longtime to complete, suggesting that it has read the entire directory. Since nosorting is involved, why has it done this?


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ls -l|head seems to look at all files in directory, Reuben Thomas <=
- Re: ls -l|head seems to look at all files in directory, Kamil Dudka, 2009/05/25
  - Re: ls -l|head seems to look at all files in directory, Jim Meyering, 2009/05/25
    - Re: ls -l|head seems to look at all files in directory, Reuben Thomas, 2009/05/25
    - Re: ls -l|head seems to look at all files in directory, Dr. David Alan Gilbert, 2009/05/25
    - Re: ls -l|head seems to look at all files in directory, Reuben Thomas, 2009/05/25
    - Re: ls -l|head seems to look at all files in directory, Jim Meyering, 2009/05/25
    - Re: ls -l|head seems to look at all files in directory, Reuben Thomas, 2009/05/25
    - Re: ls -l|head seems to look at all files in directory, Jim Meyering, 2009/05/25
    - Re: ls -l|head seems to look at all files in directory, Pádraig Brady, 2009/05/25
    - Re: ls -l|head seems to look at all files in directory, Jim Meyering, 2009/05/25

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