column -d: Spalten löschen

demo/testall.cmds

@@ -12,6 +12,9 @@ rdb select 'Description ~ /gloves/' < inventory
 ## column (project): pick columns in any order; a name that does not exist becomes a new empty column
 column Description Cost < inventory
 project Item Notes < owners
+## column -d: keep all columns except the named ones (a deletion)
+column -d Cost Value < inventory
+subtotal Date Debit Credit < journal | column -d Account Description
 ## sorttable: -n numeric, -r reverse, -f fold case
 sorttable -nr Cost < inventory
 ## compute: calculate columns from other columns (the new column must exist, so make it with addcol)

demo/testall.old

@@ -28,6 +28,23 @@ Item	Notes
 1	
 3	
 6	
+## column -d: keep all columns except the named ones (a deletion)
+$ column -d Cost Value < inventory
+Item	Amount	Description
+----	------	-----------
+1	3	rubber gloves
+2	100	test tubes
+3	5	clamps
+4	23	plates
+5	99	cleaning cloth
+6	89	bunsen burners
+7	5	scales
+$ subtotal Date Debit Credit < journal | column -d Account Description
+Date	Debit	Credit
+----	-----	------
+861222	25000	25000
+861223	10000	10000
+861224	30000	30000
 ## sorttable: -n numeric, -r reverse, -f fold case
 $ sorttable -nr Cost < inventory
 Item	Amount	Cost	Value	Description