Find command usage in Linux with excellent examples–referen

find searchesthe directory tree rooted at each given file name by evaluating thegiven expression from left to right,according to the rules of precedence,until the outcome is known (the lefthand side is false forandoperations,true for or),at which pointfind moves on to the next file name.

The syntax of find command is:

find where-to-look criteria what-to-do

I have tried to explain the find command usage with all possible examples:

Part I – Find Files Based on their types

1. Find Files Using Name in Current DirectoryFind all the files whose name is codeon.txt in a current working directory.#find . -name codeon.txt2. Find Files Under Home DirectoryFind all the files under /home directory with name codeon .txt.#find /home -name codeon.txt

3. Find Files Using Name and Ignoring CaseFind all the files whose name is codeon .txt and contains both capital and small letters in /home directory.#find /home -iname codeon.txt4. Find Directories Using NameFind all directories whose name is Codeon in /directory. #find / -type d -name Codeon5. Find PHP Files Using NameFind all php files whose name is codeon .php in a current working directory. #find . -type f -name codeon.php6. Find all PHP Files in Directory
#find . -type f -name “*.php”
Part II – Find Files Based on their Permissions7.Find all the files whose permissions are 777

#find . -type f -perm -0777
8.Find all the files without permission 777

#find / -type f ! -perm -7779.Find all the SGID bit set files whose permissions set to 644
#find / -perm -264410.Find all the Sticky Bit set files whose permission are 551

#find / -perm -155111. Find all SUID set Files #find / -perm -400012.Find all SGID set files

#find / -perm -200013. Find all Sticky bit set files #find / -perm -1000 14. Find all Read Only files #find / -perm /u=r15. Find all Executable Files
#find / -perm /a=x16.Find all 777 permission files and use chmod command to set permissions to 644 #find / -type f -perm 0777 -print -exec chmod 644 {} \;17.Find all 777 permission directories and use chmod command to set permissions to 755#find / -type d -perm 777 -print -exec chmod 755 {} \;18. Find and remove single FileTo find a single file called codeon .txt and remove it. #find . -type f -name “codeon.txt” -exec rm -f {} \;19. Find and remove Multiple FileTo find and remove multiple files such as .mp3 or .txt,then use.#find . -type f -name “*.txt” -exec rm -f {} \;OR#find . -type f -name “*.mp3” -exec rm -f {} \;20. Find all Empty FilesTo find all empty files under certain path. #find /tmp -type f -empty21. Find all Empty DirectoriesTo find all empty directories under certain path. #find /tmp -type d -empty22. File all Hidden FilesTo find all hidden files,use below command #find /tmp -type f -name “.*”Note:always put -name before “.*”
Part III – Search files based on owners and groups

23. Find Single File Based on UserTo find all or single file called codeon .txt under /root directory of owner root. #find / -user root -name codeon.txt24. Find all Files Based on UserTo find all files that belongs to user Codeon under /home directory. #find /home -user codeon25. Find all Files Based on GroupTo find all files that belongs to group Developer under /home directory. #find /home -group Developer26. Find Particular Files of UserTo find all .txt files of user codeon under /home directory. #find /home -user codeon -iname “*.txt”
Part IV – Find Files and Directories Based on Date and Time

27. Find Last 50 Days Modified FilesTo find all the files which are modified 50 days back. #find / -mtime 5028. Find Last 50 Days Accessed FilesTo find all the files which are accessed 50 days back. #find / -atime 5029. Find Last 50-100 Days Modified FilesTo find all the files which are modified more than 50 days back and less than 100 days. #find / -mtime +50 –mtime -10030. Find Changed Files in Last 1 HourTo find all the files which are changed in last 1 hour. #find / -cmin -6031. Find Modified Files in Last 1 HourTo find all the files which are modified in last 1 hour. #find / -mmin -6032. Find Accessed Files in Last 1 HourTo find all the files which are accessed in last 1 hour. #find / -amin -60

Part V – Find files and directories based on size

33. Find 50MB FilesTo find all 50MB files,use #find / -size 50M34. Find Size between 50MB – 100MBTo find all the files which are greater than 50MB and less than 100MB. #find / -size +50M -size -100M35. Find and Delete 100MB FilesTo find all 100MB files and delete them using one single command. #find / -size +100M -exec rm -rf {} \;36. Find Specific Files and DeleteFind all .mp3 files with more than 10MB and delete them using one single command. #find / -type f -name *.mp3 -size +10M -exec ls -l {} \;

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