\u200bIn Linux when you are working with shell, Find Command in Linux is one of the most useful one where one can check all files\/folders on you server. It helps to search for a specific text string in a file or files. The command sends the specified lines to the standard output device.<\/p>\n
Let us see different find commands with variety of filters and parameters. <\/p>\n
\u200b1. This command checks all files in \/home directory with the name fastwebhost.txt<\/p>\n
find \/home -name fastwebhost.txt<\/p>\n
2. This find command in linux checks all files in current working directory with the name fastwebhost.txt<\/p>\n
find . -name \u200bfastwebhost.txt<\/p>\n
3. This command will search all files in home directory irrespective to case sensitive.<\/p>\n
find \/home -iname FastWebhost.txt\u200b<\/p>\n
4. This command checks all directories with a particular name like “usr” in root folder<\/p>\n
find \/ -type d -name usr\u200b<\/p>\n
5. This find command in linux checks all tmp files with file name tmp.php<\/p>\n
find \/ -type f -name tmp.php\u200b<\/p>\n
6. The below command can check all “test.php” files with 777 permissions<\/p>\n
\u200bfind \/ -perm 777 -name test.php<\/p>\n
\u200b7. The below find command in linux can check files with SUID bit set with permissions 755<\/p>\n
“SUID” is defined as giving temporary permissions to a user to run a program\/file with the permissions of the file owner rather that the user who runs it.<\/p><\/blockquote>\n
find \/ -perm 4755\u200b<\/p>\n
8. How to search SGID bit set files with 644 permissions<\/p>\n
“SGID” is nothing but assigning temporary permissions to a user to run a program\/file with the permissions of the file group permissions to become member of that group to execute the file. In simple words users will get file Group’s permissions when executing a Folder\/file\/program\/command. SGID is similar to SUID.<\/p><\/blockquote>\n
find \/ -perm 2644\u200b<\/p>\n
9. The below Command checks sticky bit files with permissions 755<\/p>\n
A Sticky bit is a permission bit that is set on a file or a directory that lets only the owner of the file\/directory or the root user to delete or rename the file. No other user is given privileges to delete the file which was created by any other user.<\/p><\/blockquote>\n
\u200bfind \/ -perm 1755<\/p>\n
Using Find command based on users and groups<\/h3>\n
10. This command checks all the files with test.txt which is owned by a particular user.<\/p>\n
find \/ -user fastwebhost -name test.txt<\/p>\n
11. This find command in linux checks all the files with test.txt which is owned by a particular group.<\/p>\n
find \/ -group fastweb\u200bhost -name test.txt<\/p>\n
Find command to search the modified date & time of a particular file( In Days)<\/h3>\n
12. \u200bThis command search for the files which were modified more than 90 days back<\/p>\n
find \/ -ctime +90 test.txt\u200b<\/p>\n
13. This command searches all files which were modified exactly 90 days back<\/p>\n
find \/ -mtime \u200b90<\/p>\n
14. This command searches all files which were access less than 90 days<\/p>\n
find \/ -atime -90\u200b<\/p>\n
15. This command will search all files which were modified in between two time ranges, like more than 90 days and less than 180 days.<\/p>\n
find \/ -mtime +90 -mtime -180\u200b<\/p>\n
Find command to search when the files was modified (Short period, like in minutes\/hours)<\/h3>\n
16. This command fiinds all files which were modified less than 45 minutes.<\/p>\n
\u200bfind \/ -cmin -45<\/p>\n
17. The below command to check all files with last change log if it is exatly below 45 minutes.<\/p>\n
find \u200b\/ -mmin 45<\/p>\n
18. This command helps you check all files which have been changed more than 45 minutes back.<\/p>\n
find \/ -amin +45\u200b<\/p>\n
19. It finds all files modified after 6 minutes and below 30 minutes.<\/p>\n
find \/ -mmin +6 -mmin -30\u200b<\/p>\n
20. Lets see how to check the file which were created after creating test.txt file<\/p>\n
\u200bfind \/ -newer test.txt<\/p>\n
Find Command to search files\/folders based on size<\/h3>\n
\u200b21. It searches for the files\/folders which are more than 10 bytes in size.<\/p>\n
find \/ -size +10c\u200b<\/p>\n
22. It finds the file\/folders which were more than 20 kb(kilo bytes) in any of the folder<\/p>\n
find \/tmp -size 20k\u200b<\/p>\n
23. The following command searches the file\/folder with less than 10MB in a folder<\/p>\n
find \/tmp -size -10M\u200b<\/p>\n
24. The below command will search all files\/folders which are more than 1GB<\/p>\n
find \/\u200b -size +1G<\/p>\n
25. To search all empty files in server<\/p>\n
find \/ -size 0c<\/p>\n
26. Find all the files which are with more than size 50MB and less than 500GB and the owner of the file is test and the file name is fastwebhost.txt in \/fast folder.<\/p>\n
find \/fast -size +50M -size -500M -user test -iname fastwebhost.txt<\/p>\n
Executing commands on the files\/folder found with “find” command<\/h3>\n
\u200bCaution: When using -exec option which you are going to learn below, you should be more cautious. If you don’t use wisely this can remove\/change anything.<\/p>\n
There are some instances when you want to execute commands on the found files with find command. -exec is the option used in find command to execute shell commands directly on found files\/folders. Let\u2019s discuss this with a simple example.<\/p>\n
27. \u200bThe below command with -exec option will search \/tmp folder for *pass.* file and list the output on your screen.<\/p>\n
find \/tmp -iname *pass.* -exec ls -ld {} ;<\/p>\n
28. The below command finds the file test.txt with the fast1 as owner in \/home folder, than it will change the ownership to fast2 by executing the chown command using -exec<\/p>\n
find \/home -user fast1 -name test.txt -exec chown fast2.fast2 {} ;\u200b<\/p>\n
29. The below command will find the file “pass.txt” under \/tmp folder and try to grep the word “Name” using executive command.<\/p>\n
find \/tmp -iname pass.txt -exec grep “Name” {} ;\u200b<\/p>\n
30. This command will search for test.txt.db file under the user fast and change the file permission to 755 using -exec option.<\/p>\n
find \/var\/named -user fast -name test.txt.db -exec chmod 755 {} ;\u200b<\/p>\n
Conclusion<\/h3>\n
\u200bHope this articles helps you get familiar with Find Command in Linux. I will keep adding more commands to this article soon.<\/p>\n","protected":false},"excerpt":{"rendered":"
Introduction \u200bIn Linux when you are working with shell, Find Command in Linux is one of the most useful one where one can check all files\/folders on you server. It helps to search for a specific text string in a file or files. The command sends the specified lines to the standard output device. Let […]<\/p>\n","protected":false},"author":4,"featured_media":2162,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[22],"tags":[113,110],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.fastwebhost.in\/blog\/wp-json\/wp\/v2\/posts\/1522"}],"collection":[{"href":"https:\/\/www.fastwebhost.in\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fastwebhost.in\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fastwebhost.in\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fastwebhost.in\/blog\/wp-json\/wp\/v2\/comments?post=1522"}],"version-history":[{"count":3,"href":"https:\/\/www.fastwebhost.in\/blog\/wp-json\/wp\/v2\/posts\/1522\/revisions"}],"predecessor-version":[{"id":4709,"href":"https:\/\/www.fastwebhost.in\/blog\/wp-json\/wp\/v2\/posts\/1522\/revisions\/4709"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fastwebhost.in\/blog\/wp-json\/wp\/v2\/media\/2162"}],"wp:attachment":[{"href":"https:\/\/www.fastwebhost.in\/blog\/wp-json\/wp\/v2\/media?parent=1522"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fastwebhost.in\/blog\/wp-json\/wp\/v2\/categories?post=1522"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fastwebhost.in\/blog\/wp-json\/wp\/v2\/tags?post=1522"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}