[FIXED] How to get only process ID in specify process name in Linux?

Issue

How to get only the process ID for a specified process name in Linux?

ps -ef|grep java
test 31372 31265  0 13:41 pts/1    00:00:00 grep java

Based on the process id I will write some logic. So how do I get only the process id for a specific process name.

Sample program:

PIDS= ps -ef|grep java
if [ -z "$PIDS" ]; then
echo "nothing"
else
mail test@domain.example
fi

Solution

You can use:

ps -ef | grep '[j]ava'

Or if pgrep is available then better to use:

pgrep -f java

Answered By - anubhava

Answer Checked By - Candace Johnson (PHPFixing Volunteer)