Create the following scripts and test them out.

hello$2.$sh:

#$!/$bin$/$bash

name$=$"Ali"

echo "Hello $name, have a nice day!"

hello$3.$sh:

#$!/$bin$/$bash

echo "Who is there?"

read name

echo "Hello $name, have a nice day!"

hello$4.$sh:

#$!/$bin$/$bash

echo "Hello $$1,$ have a nice day!"

Test with one command$-$line argument, for example:

$./$hello$4.$sh Ali

hello$5.$sh:

#$!/$bin$/$bash

today$=$$$($date$)$

echo "Hello, the date and time is $today."

echo "The date is $$($date $-$I$)."$