Shell Script - permission jira projects

[Renan de SIlva e Souza]

I am creating a shell script in linux that creates and deletes users,
and the time necessary to create a script that I can give a user permission to access a project "X" over it can not access a project "Y".

Could you help me please?

[Timothy]

I doubt that you will be able to do this using shell script in linux.

You might want to take a look at this add on too (https://marketplace.atlassian.com/plugins/com.onresolve.jira.groovy.groovyrunner) which you can use together with your script.