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How to find the longest header file(.h) in the /usr directory – CentOS

How to find the largest as in total size (by length) header file (.h) in the /usr directory ?
To search in subdirectories too.
I did this as follows: 

find . - name *.h | xargs awk | sort -n | less .

But this only outputs all files with the extension .h and their dimensions

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2

Answers


  1. 0

    Something like

     find /usr -name "*.h" -printf "%st%pn" | awk '$1 > maxsize { maxsize = $1; maxline = $0 } END { print maxline }'

    (assuming none of the files have newlines in their names, of course)

    or if you have GNU datamash available:

    find /usr -name "*.h" -printf "%st%pn" | datamash -f max 1 | cut -f1,2

    With GNU find, the -printf command lets you print lots of information about a file, including its size in bytes (%s) and its name (%p). Finding the max from that is easy.

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  2. 0

    With GNU tools:

    find /usr -type f -name "*.h" -printf "%s %p" | sort -zrnk1,1 | head -zn1 | tr '' 'n'

    This allows filenames with newlines, find outputs a NUL terminated string and the following commands use NUL as delimiter instead of a newline. At the end of the pipeline, tr converts the delimiter back to a newline.

    If you only want the filename, add cut to remove the first space separated field:

    find /usr -type f -name "*.h" -printf "%s %p" | sort -zrnk1,1 | head -zn1 | 
  tr '' 'n' | cut -d' ' -f2-
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