Skip to main content

find



Find command
used to search and locate list of files and directories based on conditions you specify for files that match the arguments. Find can be used in variety of conditions like you can find files by permissions, users, groups, file type, date, size and other possible criteria.

1. Find Files Using Name in Current Directory

Find all the files whose name is tecmint.txt in a current working directory.
# find . -name tecmint.txt
 
./tecmint.txt

2. Find Files Under Home Directory

Find all the files under /home directory with name tecmint.txt.
# find /home -name tecmint.txt
 
/home/tecmint.txt

3. Find Files Using Name and Ignoring Case

Find all the files whose name is tecmint.txt and contains both capital and small letters in /home directory.
# find /home -iname tecmint.txt
 
./tecmint.txt
./Tecmint.txt

4. Find Directories Using Name

Find all directories whose name is Tecmint in / directory.
# find / -type d -name Tecmint
 
/Tecmint

5. Find PHP Files Using Name

Find all php files whose name is tecmint.php in a current working directory.
# find . -type f -name tecmint.php
 
./tecmint.php

6. Find all PHP Files in Directory

Find all php files in a directory.
# find . -type f -name "*.php"
 
./tecmint.php
./login.php
./index.php
Part II – Find Files Based on their Permissions

7. Find Files With 777 Permissions

Find all the files whose permissions are 777.
# find . -type f -perm 0777 -print

8. Find Files Without 777 Permissions

Find all the files without permission 777.
# find / -type f ! -perm 777

9. Find SGID Files with 644 Permissions

Find all the SGID bit files whose permissions set to 644.
# find / -perm 2644

10. Find Sticky Bit Files with 551 Permissions

Find all the Sticky Bit set files whose permission are 551.
# find / -perm 1551

11. Find SUID Files

Find all SUID set files.
# find / -perm /u=s

12. Find SGID Files

Find all SGID set files.
# find / -perm /g=s

13. Find Read Only Files

Find all Read Only files.
# find / -perm /u=r

14. Find Executable Files

Find all Executable files.
# find / -perm /a=x

15. Find Files with 777 Permissions and Chmod to 644

Find all 777 permission files and use chmod command to set permissions to 644.
# find / -type f -perm 0777 -print -exec chmod 644 {} \;

16. Find Directories with 777 Permissions and Chmod to 755

Find all 777 permission directories and use chmod command to set permissions to 755.
# find / -type d -perm 777 -print -exec chmod 755 {} \;

17. Find and remove single File

To find a single file called tecmint.txt and remove it.
# find . -type f -name "tecmint.txt" -exec rm -f {} \;

18. Find and remove Multiple File

To 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 {} \;

19. Find all Empty Files

To find all empty files under certain path.
# find /tmp -type f -empty

20. Find all Empty Directories

To file all empty directories under certain path.
# find /tmp -type d -empty

21. File all Hidden Files

To find all hidden files, use below command.
# find /tmp -type f -name ".*"
Part III – Search Files Based On Owners and Groups

22. Find Single File Based on User

To find all or single file called tecmint.txt under / root directory of owner root.
# find / -user root -name tecmint.txt

23. Find all Files Based on User

To find all files that belongs to user Tecmint under /home directory.
# find /home -user tecmint

24. Find all Files Based on Group

To find all files that belongs to group Developer under /home directory.
# find /home -group developer

25. Find Particular Files of User

To find all .txt files of user Tecmint under /home directory.
# find /home -user tecmint -iname "*.txt"
Part IV – Find Files and Directories Based on Date and Time

26. Find Last 50 Days Modified Files

To find all the files which are modified 50 days back.
# find / -mtime 50

27. Find Last 50 Days Accessed Files

To find all the files which are accessed 50 days back.
# find / -atime 50

28. Find Last 50-100 Days Modified Files

To find all the files which are modified more than 50 days back and less than 100 days.
# find / -mtime +50 –mtime -100

29. Find Changed Files in Last 1 Hour

To find all the files which are changed in last 1 hour.
# find / -cmin -60

30. Find Modified Files in Last 1 Hour

To find all the files which are modified in last 1 hour.
# find / -mmin -60

31. Find Accessed Files in Last 1 Hour

To find all the files which are accessed in last 1 hour.
# find / -amin -60
Part V – Find Files and Directories Based on Size

32. Find 50MB Files

To find all 50MB files, use.
# find / -size 50M

33. Find Size between 50MB – 100MB

To find all the files which are greater than 50MB and less than 100MB.
# find / -size +50M -size -100M

34. Find and Delete 100MB Files

To find all 100MB files and delete them using one single command.
# find / -size +100M -exec rm -rf {} \;

35. Find Specific Files and Delete

Find all .mp3 files with more than 10MB and delete them using one single command.
# find / -type f -name *.mp3 -size +10M -exec rm {} \;



Comments

Popular posts from this blog

sed

Sed Command in Linux/Unix with examples SED command in UNIX is stands for stream editor and it can perform lot’s of function on file like, searching, find and replace, insertion or deletion. Though most common use of SED command in UNIX is for substitution or for find and replace. By using SED you can edit files even without opening it, which is much quicker way to find and replace something in file, than first opening that file in VI Editor and then changing it. o     SED is a powerful text stream editor. Can do insertion, deletion, search and replace(substitution). o     SED command in unix supports regular expression which allows it perform complex pattern matching. Syntax: sed OPTIONS... [SCRIPT] [INPUTFILE...] Example: Consider the below text file as an input. $cat > geekfile.txt unix is great os. unix is opensource. unix is free os. learn operating system. unixlinux which one you choose. unix is easy to learn.unix ...

initramfs" file is deleted or corrupted on your RHEL or CentOS 7

Initrd/Initramfs image provides the capability to load a RAM disk by the boot loader. This RAM disk can then be mounted as the root filesystem and programs can be run from it. Afterwards, a new root file system can be mounted from a different device. The previous root filesystem which was mounted from initrd/initramfs is then moved to a directory and can be subsequently unmounted. Their are chances that either you might have accidentally deleted "initramfs" file from the /boot partition or it is corrupted due to some reason.  Then boot process will get interrupted and you will see below error: error: file '/initramfs-3.10.0-957.el7.x86_64.img' not found. Good news is you can still recover this "initramfs" by following below steps: Step 1 :  Mount RHEL or CentOS 7 ISO image on your physical server and boot from it. In case you are using HPE Prolient server you can mount this ISO image on iLO, if this is virtual environment then mount it accordingly and reboot...

nw commands

troubleshoot commands in Linux.   1. ifconfig ifconfig (interface configurator) command   is use to initialize an interface, assign IP  Address to interface and enable or disable  interface on demand. With this command  you can view IP Address and Hardware / MAC   address assign to interface and also MTU (Maximum transmission unit) size. # ifconfig   eth0       Link encap:EthernetHWaddr 00:0C:29:28:FD:4C inet addr:192.168.50.2   Bcast:192.168.50.255   Mask:255.255.255.0           inet6 addr: fe80::20c:29ff:fe28:fd4c/64 Scope:Link           UP BROADCAST RUNNING MULTICAST   MTU:1500   Metric:1           RX packets:6093 errors:0 dropped:0 overruns:0 frame:0  ...
# # #