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

README.md

@@ -10,7 +10,7 @@ pairing with smart people at Hashrocket.
 
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-_1130 TILs and counting..._
+_1131 TILs and counting..._
 
 ---
 
@@ -1051,6 +1051,7 @@ _1130 TILs and counting..._
 - [Copying Nested Directories With Ditto](unix/copying-nested-directories-with-ditto.md)
 - [Count The Number Of Matches In A Grep](unix/count-the-number-of-matches-in-a-grep.md)
 - [Create A File Descriptor with Process Substitution](unix/create-a-file-descriptor-with-process-substitution.md)
+- [Create A Sequence Of Values With A Step](unix/create-a-sequence-of-values-with-a-step.md)
 - [Curl With Cookies](unix/curl-with-cookies.md)
 - [Curling For Headers](unix/curling-for-headers.md)
 - [Curling With Basic Auth Credentials](unix/curling-with-basic-auth-credentials.md)

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

@@ -0,0 +1,37 @@
+# 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.