Bash: Iterate over positional parameters

 

1. for param
   

   #!/usr/bin/env -vS bash
   
   for param;do
       echo $param
   done

    

2. for ${!i}
   

   #!/usr/bin/env -vS bash
   
   for ((i=1;i<=$#;++i)); do
       echo ${!i}
   done

    

3. $* $@
   
   
4. shift
   

   #!/usr/bin/env -vS bash
   
   until [ -z "$1" ]; do
       echo $1
       shift
   done