Find Tool

Find files that have been modified on your system in the past 60 minutes

find / -mmin 60 -type f

Find all files larger than 20M

find / -type f -size +20M

Find duplicate files (based on MD5 hash)

find -type f -exec md5sum '{}' ';' | sort | uniq --all-repeated=separate -w 33

Change permission only for files

cd /var/www/site && find . -type f -exec chmod 766 {} \;
cd /var/www/site && find . -type f -exec chmod 664 {} +

Change permission only for directories

cd /var/www/site && find . -type d -exec chmod g+x {} \;
cd /var/www/site && find . -type d -exec chmod g+rwx {} +

Find files and directories for specific user/group

# User:
find . -user <username> -print
find /etc -type f -user <username> -name "*.conf"
 
# Group:
find /opt -group <group>
find /etc -type f -group <group> -iname "*.conf"

Find files and directories for all without specific user/group

# User:
find . \! -user <username> -print
 
# Group:
find . \! -group <group>

Looking for files/directories that only have certain permission

# User
find . -user <username> -perm -u+rw # -rw-r--r--
find /home -user $(whoami) -perm 777 # -rwxrwxrwx
 
# Group:
find /home -type d -group <group> -perm 755 # -rwxr-xr-x

Delete older files than 60 days

find . -type f -mtime +60 -delete

Recursively remove all empty sub-directories from a directory

find . -depth  -type d  -empty -exec rmdir {} \;

How to find all hard links to a file

find </path/to/dir> -xdev -samefile filename

Recursively find the latest modified files

find . -type f -exec stat --format '%Y :%y %n' "{}" \; | sort -nr | cut -d: -f2- | head

Recursively find/replace of a string with sed

find . -not -path '*/\.git*' -type f -print0 | xargs -0 sed -i 's/foo/bar/g'

Recursively find/replace of a string in directories and file names

find . -depth -name '*test*' -execdir bash -c 'mv -v "$1" "${1//foo/bar}"' _ {} \;

Recursively find suid executables

find / \( -perm -4000 -o -perm -2000 \) -type f -exec ls -la {} \;

Find Tool

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