Ask two linux questions?

Ask two linux questions? -- Linux general technology-Linux technology and application information. For details, refer to the following section. 1) preset program running time
For example, if you have a script file myprog. job and want it to run at, you should use at-f myprog. job to check atq. The task is hung up. But it does not run.

2) In myprog. job, you need parameter a. For example, if run a exists, do you need to input./myprog. job a in the command line? How to accept this input in myprog. job. I used it, but I cannot remember it for a while.

Thank you.