sudo apt install sharutils
uuencode readme.txt readme.txt.uu > readme.txt.uu
uudecode -o /dev/stdout < readme.txt.uu > new.txt

$ cat readme.txt 
asdasdasdasdsadasdasasd
$ uuencode readme.txt readme.txt.uu > readme.txt.uu
$ cat readme.txt.uu 
begin 644 readme.txt.uu
887-D87-D87-D87-D<V%D87-D87-A<V0*
`
end
$ uudecode -o /dev/stdout < readme.txt.uu > new.txt
$ cat new.txt 
asdasdasdasdsadasdasasd
user@box:~/crypted
$ 
	arch:
    anonymous@mailinator.com
    anonymous@mailinator.com