A summary of the use of the file finding find

Find command format:

Find [OPTION] ... [Find Path] [Search Criteria] [Handling Action]
Find path: Default to the current path;
Search criteria: The specified search criteria, can be based on the file name, size, genus of the main group, type, etc., by default to find all the files under the specified path;
Handling actions: What to do with the eligible files; By default, output to the screen;

1, according to the file name to find:

                -name "file name" : Supports the use of glob;
                     650) this.width=650; "Style=" background-image:none; border-bottom:0px; border-left:0px; margin:0px; padding-left:0px; padding-right:0px; border-top:0px; border-right:0px; padding-top:0px "title=" image "border=" 0 "alt=" image "src=" http://s3.51cto.com/wyfs02/M01/72/D1/ Wkiom1xtnoss6019aabd_jaqg2a044.jpg "" 336 "height="/>
                 -iname "file name": Character case insensitive, glob supported;

650) this.width=650; "Style=" background-image:none; border-bottom:0px; border-left:0px; padding-left:0px; padding-right:0px; border-top:0px; border-right:0px; padding-top:0px "title=" image "border=" 0 "alt=" image "src=" http://s3.51cto.com/wyfs02/M02/72/D1/ Wkiom1xtnotihxvnaaa4s8cai_e138.jpg "" 323 "height="/>

-regex "pattern": matches the entire file path string with pattern, not just the file name;

2, according to the owner, belong to the group search:

-user USERNAME: Find files belonging to the owner of the specified user;

650) this.width=650; "Style=" background-image:none; border-bottom:0px; border-left:0px; margin:0px; padding-left:0px; padding-right:0px; border-top:0px; border-right:0px; padding-top:0px "title=" image "border=" 0 "alt=" image "src=" http://s3.51cto.com/wyfs02/M00/72/D1/ Wkiom1xtnoxg4nnoaablvibkkne047.jpg "" 613 "height="/>

-group GROUPNAME: Find the genus group designated file;

650) this.width=650; "Style=" background-image:none; border-bottom:0px; border-left:0px; margin:0px; padding-left:0px; padding-right:0px; border-top:0px; border-right:0px; padding-top:0px "title=" image "border=" 0 "alt=" image "src=" http://s3.51cto.com/wyfs02/M01/72/D1/ Wkiom1xtnoxr071haabybsftlys097.jpg "" 613 "height="/>

3. Search by File type:

-type type
                     f: normal file
                     d: Catalog
                     L: Symbolic link
                     B: Block device
                     C: Character device
                     P: Named Pipes
                     S: Socket

650) this.width=650; "Style=" background-image:none; border-bottom:0px; border-left:0px; margin:0px; padding-left:0px; padding-right:0px; border-top:0px; border-right:0px; padding-top:0px "title=" image "border=" 0 "alt=" image "src=" http://s3.51cto.com/wyfs02/M02/72/D1/ Wkiom1xtnowhaoogaaaznr6ugak958.jpg "" 277 "height=" "The/>

4. Combination search criteria:

and Conditions:-A

650) this.width=650; "Style=" background-image:none; border-bottom:0px; border-left:0px; margin:0px; padding-left:0px; padding-right:0px; border-top:0px; border-right:0px; padding-top:0px "title=" image "border=" 0 "alt=" image "src=" http://s3.51cto.com/wyfs02/M00/72/CD/ Wkiol1xtnw-cpacmaabt1jirpos443.jpg "" 613 "height="/>
or condition:-O
Non-conditional:-not,!

! A-o! B =! (A-a B)
! A-a! B =! (A-o B)

5, according to file size to find:

-size [+|-] #UNIT
Unit: K, M, G

#UNIT: (#-1,#]
+ #UNIT: (#,+oo)
-#UNIT: [0,#-1]

650) this.width=650; "Style=" background-image:none; border-bottom:0px; border-left:0px; margin:0px; padding-left:0px; padding-right:0px; border-top:0px; border-right:0px; padding-top:0px "title=" image "border=" 0 "alt=" image "src=" http://s3.51cto.com/wyfs02/M01/72/CD/ Wkiol1xtnxdh8jo2aac8hdltayq361.jpg "613" height= "/>"

6, according to time stamp:

In days
                    -atime [+|-]#
                         #:[#,#+1)
                         +# : [#+1,oo]
                        -#: [0,#]
                    -mtime
                    -ctime

650) this.width=650; "Style=" background-image:none; border-bottom:0px; border-left:0px; margin:0px; padding-left:0px; padding-right:0px; border-top:0px; border-right:0px; padding-top:0px "title=" image "border=" 0 "alt=" image "src=" http://s3.51cto.com/wyfs02/M02/72/CD/wKioL1XtnxDDO_ Vvaabu-t2-i44513.jpg "" 613 "height="/>

In "Minutes" units
-amin
-mmin
-cmin

7, according to the authority:

-perm [/|-]mode
MODE: Exact permission match
/mode: Any one of a class of objects (U,g,o) is eligible for any of the rights, implied or conditional;
/400
-mode: Every permission specified for each class of object must be in accordance with the condition;

Practice:

1, find the/var directory is the owner of the root, and belong to the group mail all files;

650) this.width=650; "Style=" background-image:none; border-bottom:0px; border-left:0px; margin:0px; padding-left:0px; padding-right:0px; border-top:0px; border-right:0px; padding-top:0px "title=" image "border=" 0 "alt=" image "src=" http://s3.51cto.com/wyfs02/M00/72/CD/ Wkiol1xtnxgwjcihaabznisqtnu985.jpg "" 613 "height="/>
2. Find all files that are not root, bin or hadoop under the/usr directory;

650) this.width=650; "Style=" background-image:none; border-bottom:0px; border-left:0px; margin:0px; padding-left:0px; padding-right:0px; border-top:0px; border-right:0px; padding-top:0px "title=" image "border=" 0 "alt=" image "src=" http://s3.51cto.com/wyfs02/M02/72/CD/ Wkiol1xtnxgjhq3kaadelloocnc227.jpg "" 613 "height="/>
3. Find all files whose contents have been modified and are not root or Hadoop for the last week in/etc directory;

650) this.width=650; "Style=" background-image:none; border-bottom:0px; border-left:0px; margin:0px; padding-left:0px; padding-right:0px; border-top:0px; border-right:0px; padding-top:0px "title=" image "border=" 0 "alt=" image "src=" http://s3.51cto.com/wyfs02/M01/72/D1/ Wkiom1xtnoiyscafaab6wnirf-k861.jpg "" 613 "height="/>
4. Find all files on the current system that are not owned by the master or group, and have been visited in the last week;

650) this.width=650; "Style=" background-image:none; border-bottom:0px; border-left:0px; margin:0px; padding-left:0px; padding-right:0px; border-top:0px; border-right:0px; padding-top:0px "title=" image "border=" 0 "alt=" image "src=" http://s3.51cto.com/wyfs02/M00/72/CD/ Wkiol1xtnxltmjjraacmnolkfwc297.jpg "" 613 "height="/>
5. Find all files of more than 20k and type of ordinary person in/etc directory;

650) this.width=650; "Style=" background-image:none; border-bottom:0px; border-left:0px; margin:0px; padding-left:0px; padding-right:0px; border-top:0px; border-right:0px; padding-top:0px "title=" image "border=" 0 "alt=" image "src=" http://s3.51cto.com/wyfs02/M01/72/CD/ Wkiol1xtnxbc7nsgaakf_jhuyou135.jpg "" 613 "height=" 236 "/>
6, look for all the users in/etc directory do not have permission to write files;

650) this.width=650; "Style=" background-image:none; border-bottom:0px; border-left:0px; margin:0px; padding-left:0px; padding-right:0px; border-top:0px; border-right:0px; padding-top:0px "title=" image "border=" 0 "alt=" image "src=" http://s3.51cto.com/wyfs02/M02/72/CD/ Wkiol1xtnxfymd6xaatwwaoweno007.jpg "" 613 "height=" 460 "/>
7. Find at least one class of users who do not have permission to execute files in/etc directory;

650) this.width=650; "Style=" background-image:none; border-bottom:0px; border-left:0px; margin:0px; padding-left:0px; padding-right:0px; border-top:0px; border-right:0px; padding-top:0px "title=" image "border=" 0 "alt=" image "src=" http://s3.51cto.com/wyfs02/M00/72/CD/wKioL1XtnxiS4_ N7aar5iuxe3rq116.jpg "" 527 "height=" 460 "/>
8, find/etc/init.d directory, all users have execute permission, and other users have write permission files;

650) this.width=650; "Style=" background-image:none; border-bottom:0px; border-left:0px; margin:0px; padding-left:0px; padding-right:0px; border-top:0px; border-right:0px; padding-top:0px "title=" image "border=" 0 "alt=" image "src=" http://s3.51cto.com/wyfs02/M01/72/CD/ Wkiol1xtnxmhqnpgaar5xk8p5nq169.jpg "" 613 "height=" 417 "/>

A summary of the use of the file finding find