explainshell.com - cat.1posix -n %2Fhome%2Fmarcos%2FEvidencias%2FBulk_PC-20170427_%2Femail.txt %7C egrep -o %22%5Cb%5Ba-zA-Z0-9.-%5D%2B%40%5Ba-zA-Z0-9.-%5D%2B%5C.%5Ba-zA-Z0-9.-%5D%2B%5Cb%22 %7C sort %7C uniq %7C egrep -i %22gmail%7Chotmail%7Cproton%7Cfacebook%22

-n %2Fhome%2Fmarcos%2FEvidencias%2FBulk_PC-20170427_%2Femail.txt %7C egrep -o %22%5Cb%5Ba-zA-Z0-9.-%5D%2B%40%5Ba-zA-Z0-9.-%5D%2B%5C.%5Ba-zA-Z0-9.-%5D%2B%5Cb%22 %7C sort %7C uniq %7C egrep -i %22gmail%7Chotmail%7Cproton%7Cfacebook%22

concatenate and print files