w: split out of common and add -i to osx, uniq: additions, seq: add page

pages/common/seq.md

@@ -0,0 +1,15 @@
+# seq
+
+> Output a sequence of numbers to stdout.
+
+- Sequence from 1 to 10:
+
+`seq 10`
+
+- Every 3rd number from 5 to 20:
+
+`seq 5 3 20`
+
+- Separate the output with a space instead of a newline:
+
+`seq -s " " 5 3 20`

pages/common/uniq.md

@@ -1,6 +1,6 @@
 # uniq
 
-> Report or omit repeated lines.
+> Output the unique lines from the given input or file.
 
 - Display each line once: