centos | perl processes are not shown

Question

I have a centos server in which I have install perl package to run some perl scripts. today I run some perl scripts, and when I run ps -ef | grep perl it shows nothing although the scripts are working properly.

When I use pkill -f (name_of_script) the perl process stopped however they are not shown at all.

Note that yesterday I deleted a user ( X ) which was affected to folder /home/scripts. What do you think the problem is from?

Answer 1

The reason for not showing the process in ps -ef might be due to the process being run as a background process. In that case, the process won't be associated with the terminal where you started it from and thus won't be shown in the output of ps -ef. To see all processes running on the system, including background processes, you can use ps aux instead.