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# file size older than x days

from <http://stackoverflow.com/a/17419690/546750>

to list all file that modified more than more than X days, we can use

```
$ find . -mtime +[number of days]
```

if you use `-` sign than it became file is modified since X days

Combine it with akw, we can get total file size

```
$ find . -mtime +180 -exec du -ks {} \; | cut -f1 | awk '{total=total+$1}END{print total/1024}'
```