In Bash,

1. the syntax of the C-like for-loop is:

   for (( expr1 ; expr2 ; expr3 )) ; do commands ; done
   

   Can the execution of commands affect the evaluations of the three arithmetic expressions expr1, expr2, and/or expr3, and therefore change the iterations (e.g. the number of iterations)?

   Or are the iterations (e.g. the number of iterations) unaffected by execution of commands in each iteration?

2. The other syntax of the for command is:

   for name [ [in [words ...] ] ; ] do commands; done
   

   Can execution of commands in each iteration affect the iterations (e.g. the number of iterations)?