Shell : How to get pid given apart of its name string

Question

I've this running java process:

testuser 37126     1  0  2018 ?        01:56:24 java -jar backend76465465.jar -XX:-OmitStackTraceInFastThrow --spring.profiles.active=server

I want to dynamically get its pid based on :

• a part of its name: "backend"

  (which is the fix part "backend") ,

• the other part : 76465465 would always change i ve tried this :

  ps -eaf | awk '$NF~"backend" {print $2}'
  

and this :

ps -eaf | grep java | awk '$NF~"backend" {print $2}'

but it still give me empty results .

Suggestions ?

Answer 1

Have you tried to use ps aux | grep backend?

Answer 2

Try pgrep , it will return the pid of the matched process :

pgrep -f backend