Found 20 files with the largest size

e.g.

 # find /var/log -type f -exec du -sm {} \; | sort -n -r | head -20 

 
41      /var/log/cabal/WorldSvr_10_01.log
35      /var/log/cabal/DBAgent_10.log
34      /var/log/cabal/WorldSvr_10_10.log
5       /var/log/maillog.4
5       /var/log/maillog.3
5       /var/log/cabal/WorldSvr_10_05.log
5       /var/log/cabal/WorldSvr_10_04.log
5       /var/log/cabal/WorldSvr_10_02.log
4       /var/log/cabal/WorldSvr_10_03.log
4       /var/log/cabal/LoginSvr_01.log
3       /var/log/maillog.2
3       /var/log/maillog.1
1       /var/log/yum.log
1       /var/log/Xorg.0.log.old
1       /var/log/Xorg.0.log
1       /var/log/wtmp.1
1       /var/log/wtmp
1       /var/log/secure.4
1       /var/log/secure.3
1       /var/log/secure.2