Search for largest file type size

I need the command to get the file size (MB) of the largest file type of ".pdf" starting in a directory and  searching any sub-dirs also!
894359Asked:
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gheistCommented:
find . -iname "*.pdf" -ls | sort +6 | tail -1
---Explanation:
find - command
. - directory you want to start with
-iname - use name mask
"*.pdf" - what you asked for
-ls - show file list from find
| - shell pipe
sort  - a command
+6 - use 6th column of output
| - shell pipe
tail - get some lines of a file
-1 - last line
---Problems possible:
column 6 is not posix, nor I am sure find is 100% posix-accurate, you may need to adjust to your environment.
Tested and worked  only on FreeBSD 5.1 in five minutes.
Slow will be because find loads namei function of filesystem, sort uses some memory , tail waits for both, add time command before each command to read what happens.

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yuzhCommented:
find . -type f -name "*.pdf" -ls | sort +6 | tail -1

or

find / -type f -name "*.pdf" -ls | sort +6 | tail -1

To get the filename and size of the file, than convert the size to MB use:

SIZEofFILE/1024






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gheistCommented:
-type f  important for sure
size/(1024*1024) or size/(1000*1000) depending on 894359's definition of megabyte
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glassdCommented:
Some versions of find do not include the '-ls' option, so:

find . -type f -name "*.pdf" -exec ls -l {} \; | sort +6 | tail -1
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gheistCommented:
and there is file command which analyzes file content
find . -type f -exec file \{\} \; | awk -F: "/PDF/{print $1}" | xargs ls -l | sort +XX | tail -1
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894359Author Commented:
I will be try these Friday! Thanks!
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