Linux: Finding and Locating files with find command part # 1
Many newcomers find it difficult use the find command at shell prompt under Linux / *BSD or Solairs UNIX oses. Find is nifty tool on remote server where UNIX admin can find out lot of information too. Desktop users may find handy GNOME Search tool as a utility for finding files on system. Find command can perform a search based on a variety of search constraints. It searches through one or more directory tree(s) of a filesystem, locating files based on some user-specified criteria. By default, find returns all files below the current working directory. Further, find allows the user to specify an action to be taken on each matched file. Thus, it is an extremely powerful program for applying actions to many files. It also supports regexp matching.
GNOME Search Tool GUI Program
GNOME Search Tool is a utility for finding files on your system. To perform a basic search, you can type a filename or a partial filename, with or without wildcards. You can start this program from menus or by typing following command at shell prompt:
$ gnome-search-tool &
Internally GNOME Search Tool uses the find, grep, and locate UNIX commands. The case sensitivity of the search depends on your operating system. For example, on Linux, the find, grep, and locate commands support the -i option, so all searches are case-insensitive.
(click to enlarge)Find command syntax
find {search-path} {file-names-to-search} {action-to-take}
Where,
- search-path : Define search path (default current directory). For example search in /home directory.
- file-names-to-search : Name of the file you wish to find. For example all c files (*.c)
- action-to-take : Action can be print file name, delete files etc. Default action is print file names.
Find command examples
Let us try out some examples.
Finding files and printing their full name
You wish to find out all *.c (all c source code) files located under /home directory, enter:
$ find /home -name "*.c"
You would like to find httpd.conf file location:
$ find / -name httpd.conf
Finding all files owned by a user
Find out all files owned by user vivek:
# find / -user vivek
Find out all *.sh owned by user vivek:
# find / -user vivek -name "*.sh"
Finding files according to date and time
Files not accessed in a time period – It is useful to find out files that have or have not been accessed within a specified number of days. Following command prints all files not accessed in the last 7 days:
# find /home -atime +7
- -atime +7: All files that were last accessed more than 7 days ago
- -atime 7: All files that were last accessed exactly 7 days ago
- -atime -7: All files that were last accessed less than7 days ago
Finding files modified within a specified time – Display list of all files in /home directory that were not last modified less than then days ago.
# find /home -mtime -7
Finding newer (more recently) modified files
Use -newer option to find out if file was modified more recently than given file.
# find /etc/apache-perl -newer /etc/apache-perl/httpd.conf
Finding the most recent version of file
It is common practice before modifying the file is copied to somewhere in system. For example whenever I modify web server httpd.conf file I first make backup. Now I don't remember whether I had modified the /backup.conf/httpd.conf or /etc/apache-perl/httpd.conf. You can use the find command as follows (tip you can also use ls -l command):
find / -name httpd.conf -newer /etc/apache-perl/httpd.conf
Locate command
The locate command is often the simplest and quickest way to find the locations of files and directories on Linux and other Unix-like operating systems.
For example, the following command uses the star wildcard to display all files on the system that have the .c filename extension:
# locate "*.c"
Further readings
- Read find and locate command man page for more information.
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Printable version
You may also be interested in other helpful articles:
- Linux / UNIX: Finding and locating files with find command part # 2
- Linux commands to help you navigate
- Download Linux Google desktop application
- Understanding the Linux file system directories / hierarchy
- Finding all .mp3 files and move to new directory from shell prompt
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Tags: filesystem, find command, Linux, nifty_tool, search_tool, UNIX
Thanks for nice blog!
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Good one..2 more from me..
# files modied 3 days ago but less than 5 days.
find /home -type f -mtime +2 -mtime -5
# find all files with name ‘testfile’ in /home directory recursively and contains the word hello.
find /home -type f -name testfile | xargs grep -l -i hello
Hi nix, appreciate your efforts.
For all those people who are looking for sum more examples.. do check out http://www.amitsharma.linuxbloggerscom/how_to_find.htm
With best regards..
Thanks for educating me on the basics of using find on Linux. Most appreciated from a newbie.