column: add page (#1053)

pages/common/column.md

@@ -0,0 +1,20 @@
+# column
+
+> Format standard input or file into multiple columns.
+> Rows are filled before columns; default separator is whitespace.
+
+- Format output for a 30 characters wide display:
+
+`printf "header1 header2\nbar foo\n" | column -c {{30}}`
+
+- Specify column delimiter character for the -t option (i.e. "," for csv); default is whitespace:
+
+`printf "header1,header2\nbar,foo\n" | column -s{{,}}`
+
+- Split columns automatically and auto-align in a tabular format:
+
+`printf "header1 header2\nbar foo\n" | column -t`
+
+- Fill columns before filling rows:
+
+`printf "header1\nbar\nfoobar\n" | column -c {{30}} -x`