niyasc Light Poster 40 posts since Sep 2009 Reputation Points: -3 [?] Q&As Helped to Solve: 1 [?] Skill Endorsements: 0 [?] 0 2 Years Ago This is the question appeared in our sessional exam related to shell programming What do you mean by $?,$#,$* and $$. Can anyone help me to answer this question?