How can i find the process name by the shell script that invokes it?

Question

Is there a way, I can find the process name of bash script by the shell script that was used to invoke it? or can I set process name of bash script to something such as

-myprocess

(I have looked into argv[0], but I am not clear about it)

so when I use

ps -ef | grep -c '[M]yprocess'

I get only all the instances of myprocess?

Answer 1

To obtain the command name of the current script that is running, use:

ps -q $$ -o comm=

To get process information on all running scripts that have the same name as the current script, use:

ps -C "$(ps -q $$ -o comm=)"

To find just the process IDs of all scripts currently being run that have the same name as the current script, use:

pgrep "$(ps -q $$ -o comm=)"

How it works

$$ is the process ID of the script that is being run.

The option -q $$ tells ps to report on only process ID $$.

The option -o comm= tells ps to omit headers and to skip the usual output and instead print just the command name.