Using UNIX commands (or the terminal application on Mac)

Write the command to retrieve the accessions number from the files called accessions.txt with the following criterion:

1. contain the number 5
2. contain the letter d or e
3. contain the letters d and e in that order
4. contain the letters d and e in that order with a single letter between them
5. contain both the letters d and e in any order
6. start with x or y
7. start with x or y and end with e
8. contain three or more digits in a row
1. end with d followed by either a, r or p

using this file:

accessions.txt

xkn59438 yhdck2 eihd39d9 chdsye847 hedle3455 xjhd53e 45da de37dp