initial checkin

Signed-off-by: Dr. Carsten Leue <carsten.leue@de.ibm.com>

exec/exec.go

@@ -0,0 +1,15 @@
+package exec
+
+import (
+	T "github.com/ibm/fp-go/tuple"
+)
+
+type (
+	// command output
+	CommandOutput = T.Tuple2[[]byte, []byte]
+)
+
+var (
+	StdOut = T.First[[]byte, []byte]
+	StdErr = T.Second[[]byte, []byte]
+)