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Set the pid of a searched running process (ps -ea | grep <search>}) in shell

I am making a shell script where I run a process and I am searching for that process like this ps -ea | grep <search_term> and I can find that process fine, but I want to set the pid of that process to a variable in my shell script, then wait until that process is finished. This is the type of thing I want:

PID= (returned and parsed value of "ps -ea | grep <search_term>")
echo $PID
wait $PID
Solution 
  • PID=$(ps -ea | awk '/<search_term>/,NF=1')

    Shell script to get the process ID on Linux