if … then statement
if [ test_command ]
then
commands
fi
if … then … else statement
if [ test_command ]
then
commands
else
commands
fi
if … then … elif … (else) statement
if [ test_command ]
then
commands
elif [ test_command ]
then
commands
elif [ test_command ]
then
commands
.
.
.
else (Optional)
commands
fi
for … in statement
for loop_variable in argument_list
do
commands
done
while test_condition_is_true
do
commands
done
until test_condition_is_true
do
commands
done
case statement
case $variable in
match_1)
commands_to_execute_for_1
;;
match_2)
commands_to_execute_for_2
;;
match_3)
commands_to_execute_for_3
;;
.
.
.
*) (Optional - any other value)
commands_to_execute_for_no_match
;;
esac
