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Looking for files with certain characteristics (Linux / Unix)

I was about to use chown to change the ownership of an entire subdirectory tree that had been passed from one user to another. But - hang on - were there any files there that belonged to someone else for any reason? One way to find out - a find command:

find . -not -user savethetrain -print

"Find all the files in or below the current directory that do not belong to the savethetrain account"

Other options to find include:
-name - look by name
-uid - look by user id
-mtime - look by file modified time
-perms - look by permissions
-size - look by file size
(written 2008-05-22)

 
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles
A161 - Web Application Deployment - Users and Groups
  [4045] Linux Web Server - User Roles, User Accounts, and shared administration - (2013-03-16)
  [2639] su or su - ... what is the difference? - (2010-02-17)
  [2491] Root is root for a reason! - (2009-11-03)
  [2301] Mistaken identity? - (2009-07-22)
  [2203] Always use su with minus. And where do programs come from? - (2009-05-27)
  [2117] Choosing a railway station fairly in PHP - (2009-04-04)
  [2103] Ask the Tutor - Open Source forum - (2009-03-25)
  [1904] Ruby, Perl, Linux, MySQL - some training notes - (2008-11-23)
  [1902] sstrwxrwxrwx - Unix and Linux file permissions - (2008-11-23)
  [1773] The Longest Possible Day - (2008-08-26)
  [1619] User and Group settings for Apache httpd web server - (2008-04-22)
  [1592] Setting up a new user - Linux or Unix - (2008-03-26)
  [683] Supporting users on Linux and Unix - (2006-04-13)
  [431] File permissions of Linux and Unix systems - (2005-08-31)
  [409] Functions and commands with dangerous names - (2005-08-11)


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