Find in linux means search for files in a directory hierarchy

1.for example if you want to find a file gpg.conf

command to type

admin@smartproteam$ find . -name “gpg.conf” -print

2.To find /usr/bin directory and all sub directories. All files that are of the form ‘*,v’ and ‘.*,v’ are excluded

admin@smartproteam$ find /usr/bin -not \( -name “*,v” -o -name “.*,v” \) ‘{}’ \; -print

* -not means the negation of the expression that follows
* \( means the start of a complex expression.
* \) means the end of a complex expression.
* -o means a logical or of a complex expression.
In this case the complex expression is all files like ‘*,v’ or ‘.*,v’

3.find removes all test files from user’s home directory

admin@smartproteam$ find ~/ -name ‘test*’ -exec rm {} \;

4.Lists all files in /home/admin/test directory tree that were modified within the last day.

admin@smartproteam$ find /home/admin/test -mtime 1

5.Find all the ip address in the /etc directory

admin@smartproteam$ find /etc -exec grep ‘[0-9][0-9]*[.][0-9][0-9]*[.][0-9][0-9]*[.][0-9][0-9]*’ {} \;

6.Find the files in the directory with extensions

admin@smartproteam$ find . -type f \( -name “*.class” -o -name “*.sh” \)