Find by file name To perform a find command in terminal use find / -name php.ini -type f find / -name {filename} {type parameters}Note there are many parameters in the commands, so I'll cover a couple regular expressions here.  Such as,  -name matches the string being searched and is case sensitive -iname matches the string being searched and is case insensitive -type f means to find a file with the name being searched.  In this instance php.ini -type d find a...

Regular expressions (regex) are extremely useful in extracting information from any text by searching for one or more matches of a specific search pattern. The basic anchors - ^ and $ expression action ^The matches any string that starts with The end$ matches a string that ends with end ^The end$ exact string match (starts and ends with The end) pragmatic matches any string that has the text pragmatic in it   The basic quantifiers — * + ? and...