Find the path of an executable
$ which [command]
Find modified files since last 60 minutes
$ find / -mmin -60
Find changed files since last 60 minutes
$ find / -cmin -60
FInd all files which are accessed 7 days back
$ find / -atime 7
Search for pattern in file
$ grep [query] [file]
Find all files which are greater than 10MB and less than 100MB
$ find / -size +10M -size -100M
Find files by extension
$ fd -e [extension]
$ find . -type f -name "*.[extension]"
$ locate "*.[extension]"
