diff --git a/stdlib/call.go b/stdlib/call.go
index 95e2050..c158979 100644
--- a/stdlib/call.go
+++ b/stdlib/call.go
@@ -30,6 +30,8 @@ import (
 
 var bgProcs = make([]*exec.Cmd, 0)
 var LastExitCode int
+var sigs = []os.Signal{os.Interrupt, syscall.SIGTERM, syscall.SIGTSTP, syscall.SIGTTIN, syscall.SIGTTOU, syscall.SIGCONT}
+
 
 func call(in *ast.Token, vt ast.VarTable, ft ast.FuncTable) *ast.Token {
     if in == nil {
@@ -63,7 +65,7 @@ func call(in *ast.Token, vt ast.VarTable, ft ast.FuncTable) *ast.Token {
     cmd.Stdin  = os.Stdin
 
     signalChan := make(chan os.Signal, 2)
-    signal.Notify(signalChan, os.Interrupt, syscall.SIGTERM)
+    signal.Notify(signalChan, sigs...)
     go func() {
         sig := <-signalChan
         cmd.Process.Signal(sig)
@@ -71,7 +73,7 @@ func call(in *ast.Token, vt ast.VarTable, ft ast.FuncTable) *ast.Token {
 
     err = cmd.Run()
     close(signalChan)
-    signal.Reset(os.Interrupt, syscall.SIGTERM)
+    signal.Reset(sigs...)
     if err != nil {
         if exitError, ok := err.(*exec.ExitError); ok {
             LastExitCode = exitError.ExitCode()
@@ -113,7 +115,12 @@ func bgcall(in *ast.Token, vt ast.VarTable, ft ast.FuncTable) *ast.Token {
     cmd.Stderr = os.Stderr
 
     bgProcs = append(bgProcs, cmd)
+    cmd.Stdout = os.Stdout
+    cmd.Stdin = os.Stdin
+    cmd.Stderr = os.Stderr
+
     cmd.Start()
+    cmd.Process.Signal(syscall.SIGTSTP)
     return nil
 }
 
@@ -125,19 +132,17 @@ func fg(in *ast.Token, vt ast.VarTable, ft ast.FuncTable) *ast.Token {
     cmd := bgProcs[0]
     bgProcs = bgProcs[1:]
 
-    cmd.Stdout = os.Stdout
-    cmd.Stdin  = os.Stdin
-
     signalChan := make(chan os.Signal, 2)
-    signal.Notify(signalChan, os.Interrupt, syscall.SIGTERM)
+    signal.Notify(signalChan, sigs...)
     go func() {
         sig := <-signalChan
         cmd.Process.Signal(sig)
     }()
 
+    cmd.Process.Signal(syscall.SIGCONT)
     err := cmd.Wait()
     close(signalChan)
-    signal.Reset(os.Interrupt, syscall.SIGTERM)
+    signal.Reset(sigs...)
     if err != nil {
         if exitError, ok := err.(*exec.ExitError); ok {
             LastExitCode = exitError.ExitCode()
@@ -182,7 +187,7 @@ func read_cmd(in *ast.Token, vt ast.VarTable, ft ast.FuncTable) *ast.Token {
     cmd.Stdin  = os.Stdin
 
     signalChan := make(chan os.Signal, 2)
-    signal.Notify(signalChan, os.Interrupt, syscall.SIGTERM)
+    signal.Notify(signalChan, sigs...)
     go func() {
         sig := <-signalChan
         cmd.Process.Signal(sig)
@@ -190,7 +195,7 @@ func read_cmd(in *ast.Token, vt ast.VarTable, ft ast.FuncTable) *ast.Token {
 
     err = cmd.Run()
     close(signalChan)
-    signal.Reset(os.Interrupt, syscall.SIGTERM)
+    signal.Reset(sigs...)
     if err != nil {
          if exitError, ok := err.(*exec.ExitError); ok {
             LastExitCode = exitError.ExitCode()