Finding files larger than 200 MB

[Garrin Thompson]

Does anyone know how I might go about finding all files in a directory larger than a specified size. We're doing an audit on our production directories and some management want a report listing all files larger than 200 MB and what their size is. Being a new Unix Admin, I just don't know how I might go about this task in the most efficient way.

[Kofi ARTHIABAH]

Try the following:

# find / -size +200000000c -print
to list the file paths or:

# find / -size +200000000c -exec ls -l {} \;

cheers

[Rita C Workman]

Yes you can do a find...
find / -size +100000 -print

Note that the above looks for block size (so 2000 blk*512 byte=1mb) the above if I did the math right would be for 50mb; but you may want to check..
If you want to key by mb than:

find /file_sys -size +50000000c -print

For auditing purposes you could send the output to a file by changing -print to >output.file

Regards,

[Garrin Thompson]

Man...

You all are quick and awesome! Thanks for the help. Keep all the new fresh ideas coming, too, because it makes for some quick and easy HP-UX Admin training for me.

My Hat's off to ya'll!

[Anthony deRito]

You can use the command:

find $DIR -xdev -size +$VARc -exec ll -lt {} ;

where:
$DIR is the directory to start search
$VAR is the size to declare.

Tony

[Bill Hassell · Accepted solution]

If the reason management is looking for large files is to address disk space issues, perhaps it is a better idea to find the biggest directories first. After all, a runaway script or program could create a directory with 50,000 files, all just 10 Kbytes in size (no big files). Yet the directory takes up 500 megs of space.

The secret is du, or more specifically, du -kx /starting_point. Since this will just traverse the directories in no particular order, use sort to arrange the sizes as in:

du -kx /start_point | sort -rn

You may want to pipe the output into a file or email message. Run this command on each mountpoint.

[Jennifer Chiarelli]

With HP-UX ver 11, you can use SAM. Run Sam, Routine Tasks, Selective File Removal.

[John Palmer]

Don't forget that 200Mb is actually 209715200 bytes or 409600 512 byte blocks.

Regards,

John