How to concatenate result from one query to other query

Question

I have two queries:

• ps aux | pgrep -f mongod_arb //it will fetch pid
• kill -SIGUSR1 pid //it will kill process

I want to run them as single query.

I have already tried below different queries but none is working:

• echo "$(kill -SIGUSR1 ) $(ps aux | pgrep -f mongod_arb)";
• kill -SIGUSR1 echo "$(ps aux | pgrep -f mongod_arb)";
• echo "$(kill -SIGUSR1 ) $(ps aux | pgrep -f mongod_arb)";
• kill -SIGUSR1 echo "$(ps aux | pgrep -f mongod_arb)";

How can I do this to achieve single line query?

Answer 1

can you try this :

ps aux | pgrep -f mongod_arb | xargs kill -SIGUSR1
ps aux | pgrep -f mongod_arb | xargs sudo kill -SIGUSR1 # if permission issues.