Command line arguments

[Moinuddin]

Hi Mumshad,
I am very confused about some points you defined in command-line arguments.
first is I understand in the shell script of “create-and-launch-rocket” the variable mission_name=mars mission or any mission name will work, but if I defined the command-line arguments mission_name=$1 then how the system will know for which mission I am talking about.

This is very confusing, please help me to understand.

[Ayman]

This is done in Linux out of the box, this is how bash works when you pass with the command like
create-and-launch-rocker jupiter then when bash is interpreting the script it takes into consideration all the arguments you passed when you ran the script, so it will save jupiter in $1 variable like mentioned in the video.