(list) list is executed in a subshell environment (see COMMAND EXECUTION  ENVIRONMENT  below).   Variable
       assignments and builtin commands that affect the shell's environment do not remain in effect after
       the command completes.  The return status is the exit status of list.

for name [ [ in [ word ... ] ] ; ] do list ; done
       The  list of words following in is expanded, generating a list of items.  The variable name is set
       to each element of this list in turn, and list is executed each time.  If the in word is  omitted,
       the  for  command  executes  list  once  for each positional parameter that is set (see PARAMETERS
       below).  The return status is the exit status of the last command that executes.  If the expansion
       of  the  items  following  in  results  in an empty list, no commands are executed, and the return
       status is 0.

display a line of text

Echo the STRING(s) to standard output.