in linux curl is uded for code example
Example 1: curl command
curl <url>
curl <url> > <file>
curl <url> | grep /<pattern>/
curl <url> | gunzip
Example 2: curl command
curl --header "Authorization: key=AAAAbh_xxx-nI:APBAwd91bGn1OssamQlG4R1v84yXOv-6oynz1i4eNltzQLd5ojIiFSHvnCFHJyA33QcRfeAMa5As2mjfEjkRA_XA-YM8gsqEQssm3Ykrn8FSBEwwwkot5KPWY0zMefYB1RZj1ZlZfsWy" --header "Content-Type: application/json" -d '{"to": "f8UQCp0VHqCrBR0Yeiwx0:APA91bHuqLN7Wp40U2Wt8LS3VcRipttiViYF4TXHKP1Rusdov542XEgUYaVk9GIAEM3Q2kHcME5D85BsyWg7vk3H3oLhKJdNQLSNyoxzfnhGAvuQo4BiTZ43sIdVGQ7t86WQDn6s9HBj", "data": {"status": "New information!!!"}}' https://fcm.googleapis.com/fcm/send