Add Create A Sequence Of Values With A Step as a unix til

unix/create-a-sequence-of-values-with-a-step.md

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+# Create A Sequence Of Values With A Step
+
+The `seq` utility allows you to output a sequence of values.
+
+You can start at `1` by default.
+
+```bash
+$ seq 3
+1
+2
+3
+```
+
+Or you can specify the starting value.
+
+```bash
+$ seq 10 13
+10
+11
+12
+13
+```
+
+Adding a third argument in between those two will specify the step value that
+should be taken to get from one to the other.
+
+```bash
+$ seq 6 3 15
+6
+9
+12
+15
+```
+
+That sequence starts at 6 and goes to 15 with a step value of 3.
+
+See `man seq` for more details.