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findcommand.md

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Find Command:-

Overview

Find command is used to find the files or directory’s path, it is exactly like the find option in windows where you can search for a file.

Syntax: find / (under root) –option filename

Options that can be used with find command:

Option Usage
-name For searching a file with its name
-inum For searching a file with particular inode number
-type For searching a particular type of file
-user For files whose owner is a particular user
-group For files belonging to particular group

Working with find command

  • Finding a File with name
    $ find -name samplefile
./krishna/samplefile
  • Finding a file with its inode number
    $ find / -inum 8444249301491656
    Note: Use ls -il command to find inode value
$ ls -il
total 0
10133099161755539 drwxrwxrwx 1 root krishnaprasadkv 4096 May 27 14:45 sampledir
 8444249301491656 -rwxrwxrwx 1 root krishnaprasadkv    0 May 27 14:45 samplefile
$ find -inum 8444249301491656
./krishna/samplefile
  • Finding the files, whose owner is a user called krishnaprasadkv
    $ find / -user krishnaprasadkv
/home/krishnaprasadkv/Technology  
/home/krishnaprasadkv/Technology/Cloud  
/home/krishnaprasadkv/Technology/Cloud/AWS  
/home/krishnaprasadkv/Technology/Cloud/Azure  
/home/krishnaprasadkv/Technology/Cloud/GCP  
/home/krishnaprasadkv/Technology/Devops  
/home/krishnaprasadkv/Technology/Devops/ansible  
/home/krishnaprasadkv/Technology/Devops/docker  
/home/krishnaprasadkv/Technology/Devops/kubernetes  
/home/krishnaprasadkv/Technology/test  
/home/krishnaprasadkv/–P  
/home/krishnaprasadkv/test.c  
/home/krishnaprasadkv/testing  
/home/krishnaprasadkv/testing/test.json
  • Finding the files whose group is “ktgroup”
    $ find / -group ktgroup

/home/krishnaprasadkv/Technology
/home/krishnaprasadkv/Technology/Cloud
/home/krishnaprasadkv/Technology/Cloud/AWS
/home/krishnaprasadkv/Technology/Cloud/Azure
/home/krishnaprasadkv/Technology/Cloud/GCP
/home/krishnaprasadkv/Technology/Devops
/home/krishnaprasadkv/Technology/Devops/ansible
/home/krishnaprasadkv/Technology/Devops/docker
/home/krishnaprasadkv/Technology/Devops/kubernetes
/home/krishnaprasadkv/Technology/test
/home/krishnaprasadkv/–P
/home/krishnaprasadkv/test.c
/home/krishnaprasadkv/testing
/home/krishnaprasadkv/testing/test.json


* Finding the files have not been accessed
$ `find ./Technology/  -atime +2`

/home/krishnaprasadkv/Technology/ /home/krishnaprasadkv/Technology/Cloud /home/krishnaprasadkv/Technology/Cloud/AWS /home/krishnaprasadkv/Technology/Cloud/Azure /home/krishnaprasadkv/Technology/Cloud/GCP /home/krishnaprasadkv/Technology/Devops /home/krishnaprasadkv/Technology/Devops/ansible /home/krishnaprasadkv/Technology/Devops/docker /home/krishnaprasadkv/Technology/Devops/kubernetes


* Finding the file have not been modified 
$ `find ./Technology/  -mtime +2`

/home/krishnaprasadkv/Technology/Cloud /home/krishnaprasadkv/Technology/Cloud/AWS /home/krishnaprasadkv/Technology/Cloud/Azure /home/krishnaprasadkv/Technology/Cloud/GCP /home/krishnaprasadkv/Technology/Devops/docker /home/krishnaprasadkv/Technology/Devops/kubernetes


* List help page of find command with their option.   
$ `find --help`

find --help Usage: find [-H] [-L] [-P] [-Olevel] [-D help|tree|search|stat|rates|opt|exec|time] [path...] [expression]

default path is the current directory; default expression is -print expression may consist of: operators, options, tests, and actions:

operators (decreasing precedence; -and is implicit where no others are given): ( EXPR ) ! EXPR -not EXPR EXPR1 -a EXPR2 EXPR1 -and EXPR2 EXPR1 -o EXPR2 EXPR1 -or EXPR2 EXPR1 , EXPR2

positional options (always true): -daystart -follow -regextype

normal options (always true, specified before other expressions): -depth --help -maxdepth LEVELS -mindepth LEVELS -mount -noleaf --version -xdev -ignore_readdir_race -noignore_readdir_race

tests (N can be +N or -N or N): -amin N -anewer FILE -atime N -cmin N -cnewer FILE -ctime N -empty -false -fstype TYPE -gid N -group NAME -ilname PATTERN -iname PATTERN -inum N -iwholename PATTERN -iregex PATTERN -links N -lname PATTERN -mmin N -mtime N -name PATTERN -newer FILE -nouser -nogroup -path PATTERN -perm [-/]MODE -regex PATTERN -readable -writable -executable -wholename PATTERN -size N[bcwkMG] -true -type [bcdpflsD] -uid N -used N -user NAME -xtype [bcdpfls] -context CONTEXT

actions: -delete -print0 -printf FORMAT -fprintf FILE FORMAT -print -fprint0 FILE -fprint FILE -ls -fls FILE -prune -quit -exec COMMAND ; -exec COMMAND {} + -ok COMMAND ; -execdir COMMAND ; -execdir COMMAND {} + -okdir COMMAND ;