diff --git a/bin/konsole-tabs.sh b/bin/konsole-tabs.sh
index c999bdd..735fe48 100755
--- a/bin/konsole-tabs.sh
+++ b/bin/konsole-tabs.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 #     Copyright 2004-2010 Massimo Rimondini - Computer Networks Research Group,
 #     Roma Tre University.
diff --git a/bin/lclean b/bin/lclean
index 3c39075..9351d9c 100755
--- a/bin/lclean
+++ b/bin/lclean
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 #     Copyright 2002-2009 Stefano Pettini, Fabio Ricci, Massimo Rimondini
 #     Computer Networks Research Group, Roma Tre University.
diff --git a/bin/lcrash b/bin/lcrash
index 4fdd795..f067994 100755
--- a/bin/lcrash
+++ b/bin/lcrash
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 #     Copyright 2002-2009 Stefano Pettini, Fabio Ricci, Massimo Rimondini
 #     Computer Networks Research Group, Roma Tre University.
diff --git a/bin/lhalt b/bin/lhalt
index 71fc4f9..e4a3d73 100755
--- a/bin/lhalt
+++ b/bin/lhalt
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 #     Copyright 2002-2009 Stefano Pettini, Fabio Ricci, Massimo Rimondini
 #     Computer Networks Research Group, Roma Tre University.
diff --git a/bin/linfo b/bin/linfo
index 85d532d..7acfe12 100755
--- a/bin/linfo
+++ b/bin/linfo
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 #     Copyright 2002-2009 Stefano Pettini, Fabio Ricci, Massimo Rimondini
 #     Computer Networks Research Group, Roma Tre University.
diff --git a/bin/lstart b/bin/lstart
index 18293a2..c919816 100755
--- a/bin/lstart
+++ b/bin/lstart
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 #     Copyright 2002-2009 Stefano Pettini, Fabio Ricci, Massimo Rimondini
 #     Computer Networks Research Group, Roma Tre University.
diff --git a/bin/manage_tuntap b/bin/manage_tuntap
index f231d83..d6bed3d 100755
--- a/bin/manage_tuntap
+++ b/bin/manage_tuntap
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 #     Copyright 2004-2009 Massimo Rimondini - Computer Networks Research Group,
 #     Roma Tre University.
diff --git a/bin/netkit_bash_completion b/bin/netkit_bash_completion
index d04eff1..fce5dd7 100755
--- a/bin/netkit_bash_completion
+++ b/bin/netkit_bash_completion
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 #     Copyright 2009 Massimo Rimondini - Computer Networks Research Group,
 #     Roma Tre University.
diff --git a/bin/vclean b/bin/vclean
index 4c1d59b..8cc2f29 100755
--- a/bin/vclean
+++ b/bin/vclean
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 #     Copyright 2002-2009 Maurizio Patrignani, Maurizio Pizzonia, Fabio Ricci,
 #     Massimo Rimondini - Computer Networks Research Group, Roma Tre University.
diff --git a/bin/vconfig b/bin/vconfig
index f1b34d4..45b280a 100755
--- a/bin/vconfig
+++ b/bin/vconfig
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 #     Copyright 2002-2009 Maurizio Patrignani, Maurizio Pizzonia, Fabio Ricci,
 #     Massimo Rimondini - Computer Networks Research Group, Roma Tre University.
diff --git a/bin/vcrash b/bin/vcrash
index 8f8c5e9..031b8c8 100755
--- a/bin/vcrash
+++ b/bin/vcrash
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 #     Copyright 2002-2009 Maurizio Patrignani, Maurizio Pizzonia, Fabio Ricci,
 #     Massimo Rimondini - Computer Networks Research Group, Roma Tre University.
diff --git a/bin/vhalt b/bin/vhalt
index 8eed47f..cd19252 100755
--- a/bin/vhalt
+++ b/bin/vhalt
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 #     Copyright 2002-2009 Maurizio Patrignani, Maurizio Pizzonia, Fabio Ricci,
 #     Massimo Rimondini - Computer Networks Research Group, Roma Tre University.
diff --git a/bin/vlist b/bin/vlist
index 40c570e..21954ef 100755
--- a/bin/vlist
+++ b/bin/vlist
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 #     Copyright 2002-2009 Maurizio Patrignani, Maurizio Pizzonia, Fabio Ricci,
 #     Massimo Rimondini - Computer Networks Research Group, Roma Tre University.
diff --git a/bin/vstart b/bin/vstart
index 67eaec3..2c93ea1 100755
--- a/bin/vstart
+++ b/bin/vstart
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 #     Copyright 2002-2009 Maurizio Patrignani, Maurizio Pizzonia, Fabio Ricci,
 #     Massimo Rimondini - Computer Networks Research Group, Roma Tre University.