Linux Find Command Options

Here's a list of some useful find commands. I keep this handy when I can't remember something. Hope it helps some out.

FIND Commands 

• Find all files owned by gid XXX and change to gid YYY 
  • find /path -group 200 -exec chgrp 203 {} \; 
  • Example: 
    • GID for XXX = 32840 
    • GID for YYY = 32121 
  •  [root@hostname]#  find /path -group 32840 -exec chgrp 32121 {} \;  
  • find / -user todd -exec cp -varf {} /filelist \;  
• Find all files named X and chmod 777 
  • find /path/to/file -name filename  -exec chmod 777 {} \;  
• Find large files 
  •  find /var -type f -size +500k -exec ls -lh {} \; | awk '{ print $9 ": " $5 }  
• List files by size in directory 
  •  for X in `du -s * | sort -nr | cut -f 2`; do du -hs $X; done  
• Find file that has findfile in the current directory and all subdirectories: 
  • find . -name \*findfile\* 

• Find file older than X 
  • find /path/dir -mtime +X -delete  (x=days, ie +14 would be two weeks) 

find / -mount -size +500M -print 

If you are unable to determine where the space is being used, run the following command: 

[root@server]# find / -size +10240000c -exec du -h {} \; | less 

This command provides a list of all files that are larger than 10MB in size.  

Note: Another useful command is du -h --max-depth=1 <dir>. This command lists the directories within a given filesystem that contain the largest files.