find in linux

C++
$ find [where to start searching from]
 [expression determines what to find] [-options] [what to find]
 
 $ find ./GFG -name sample.txt find /home/username/ -name "*.err"
 find . -name tecmint.txtfind . -name "pattern" -printfind [options] [paths] [expression]
Source

Also in C++: