- How does an if-then(-else) statement end?
With the reverse of the word if: fi - How can we use regular expression search patterns in a conditional evaluation?
By employing the =~ comparison symbol. For example: [[ ${var} =~ [[:digit:]] ]] - Why do we need the elif keyword?
If we want to sequentially test for more than one condition, we can use else if (elif). - What is nesting?
Using an if-then-else statement or loop within another if-then-else statement or loop. - How can we get information about how to use shell builtins and keywords?
By using the command help, followed by the builtin or keyword we want information about. For example: help [[ - What is the opposite keyword of while?
until. A while loop runs until the condition is no longer true, an until loop runs until the condition is no longer false. - Why would we choose the for loop over the while loop?
for is more powerful...
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