When grep looks for a process, it ignores the grep process itself

ps -ef | grep ' Process name ' | grep -v grep

grep -v grep That is, the removal result contains grep The process of .

But be careful if your process name contains grep It's also ignored .

At this time, we need more detailed rules , For example, add a space in the removal condition ：

ps -ef | grep ' Process name ' | grep -v 'grep '

because grep The process is based on grep+ Beginning with a space , The general process will not be like this , So we can distinguish .

If you can't distinguish, you can consider grep -v Supported regular expression writing , No more details here .（ Because it's so rare ）