Finding Files

find

In folder: find ./test -name "filename.txt"

With wildcard: find ./test -name "*.txt"

Ignore case: find ./test -iname "*.txt"

Recursion level: find ./test -maxdepth 2 -name "*.txt"

Invert: find ./test -not -name "*.txt"

Invert: find ./test ! -name "*.txt"

Combine: find ./test -name 'filename*' ! -name '*.txt'

OR: find -name '*.txt' -o -name '*.txt'

Only files: find ./test -type f -name "filename*"

Only directories: find ./test -type d -name "filename*"

Multiple directories: find ./test ./dir2 -type f -name "filename*"

Hidden files: find ~ -type f -name ".*"

Permissions: find . -type f -perm 0664

sgid/suid nubers: find / -perm 2644

sgid/suid symbols: find / -maxdepth 2 -perm /u=s

User read permissisions: find /etc -maxdepth 1 -perm /u=r

Executable files: find /bin -maxdepth 2 -perm /a=x

By user: find . -user username -name '*.txt'

By group: find /var/www -group groupname

In home: find ~ -name "*.txt"

All 50 mebibyte files: find / -size 50M

greater than 50 mebibyte and less than 100MB: find / -size +50M -size -100M

List the largest file in the current directory and its subdirectory: find . -type f -exec ls -s {} \; | sort -n -r | head -1

List the 5 smallest file in the current directory and its subdirectory: find . -type f -exec ls -s {} \; | sort -n | head -5

Find all files that are empty: find /tmp -type f -empty

All empty directories: find ~/ -type d -empty

List finds as ls: find . -exec ls -ld {} \;

Remove all text files in the tmp directory: find /tmp -type f -name "*.txt" -exec rm -f {} \;

Delete files larger than 100MB: find /home/username/dir -type f -name *.log -size +10M -exec rm -f \;

Delete empty directories: find <DIR> -type d -empty -delete

Find .tar files, and write it's contents one item per line, with relative paths: cd <DIR> && find . -name '*.tar' > toBeCompressed.txt​

Delete all executable files: find <DIR> -type f -executable -delete

Change 777 files to 644: find <DIR> -type f -perm 777 -print -exec chmod 644 {} \;

Change read only directories to 755: find <DIR> -type d -perm 444 -print -exec chmod 755 {} \;

Change ownership of all group developer files and directories to group and user admin: find <DIR> -group developer -print -exec chown admin:admin {} \;

Accessed (read), Modified (data), and Changed (metadata like chmod)

Modified 50 days ago: find / -mtime 50

Accessed in the last 50 days: find / -atime -50

Modified between 50 to 100 days ago: find / -mtime +50 –mtime -100

Changed within the last 1 hour: find /home/username -cmin -60

Modified in last 1 hour: find / -mmin -60

Accessed Files in Last 1 Hour: find / -amin -60

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