diff --git a/bin/Bgrun b/bin/Bgrun
index f04dd2c397090b80316eaf354253f4caa21f2686..47cfecef348c390ec46288e1f68d7fb4613168e7 100755
--- a/bin/Bgrun
+++ b/bin/Bgrun
@@ -1,4 +1,4 @@
-#!/bin/ksh
+#!/bin/bash
 #MNH_LIC Copyright 1994-2014 CNRS, Meteo-France and Universite Paul Sabatier
 #MNH_LIC This is part of the Meso-NH software governed by the CeCILL-C licence
 #MNH_LIC version 1. See LICENSE, CeCILL-C_V1-en.txt and CeCILL-C_V1-fr.txt  
diff --git a/bin/Exec b/bin/Exec
index 22e3df53eda2fe60b56036288ac352b2722cb245..87117b6ab9b6b1c04e722274c29fd680dfde38a6 100755
--- a/bin/Exec
+++ b/bin/Exec
@@ -1,4 +1,4 @@
-#!/bin/ksh
+#!/bin/bash
 #MNH_LIC Copyright 1994-2014 CNRS, Meteo-France and Universite Paul Sabatier
 #MNH_LIC This is part of the Meso-NH software governed by the CeCILL-C licence
 #MNH_LIC version 1. See LICENSE, CeCILL-C_V1-en.txt and CeCILL-C_V1-fr.txt  
diff --git a/bin/Mpirun b/bin/Mpirun
index 5e9079018bf362f5cc0c84e8c63900cc421fa803..a17fb8255685db0979e45334e0c91aad8f75197b 100755
--- a/bin/Mpirun
+++ b/bin/Mpirun
@@ -1,4 +1,4 @@
-#!/bin/ksh
+#!/bin/bash
 #MNH_LIC Copyright 1994-2014 CNRS, Meteo-France and Universite Paul Sabatier
 #MNH_LIC This is part of the Meso-NH software governed by the CeCILL-C licence
 #MNH_LIC version 1. See LICENSE, CeCILL-C_V1-en.txt and CeCILL-C_V1-fr.txt  
diff --git a/bin/Poe b/bin/Poe
index 0eeb8c4fb2d6f2a215d6e38e5c46d7807d3f6e9b..5d6b17440a0a257683d40127b7a07bfd13fff1cc 100755
--- a/bin/Poe
+++ b/bin/Poe
@@ -1,4 +1,4 @@
-#!/bin/ksh
+#!/bin/bash
 #MNH_LIC Copyright 1994-2014 CNRS, Meteo-France and Universite Paul Sabatier
 #MNH_LIC This is part of the Meso-NH software governed by the CeCILL-C licence
 #MNH_LIC version 1. See LICENSE, CeCILL-C_V1-en.txt and CeCILL-C_V1-fr.txt  
diff --git a/bin/Runjob b/bin/Runjob
index a1b1623790ce2051787f2c246343cc20646a2a69..634a7a2bf70bd8a05094682696753643919510fc 100755
--- a/bin/Runjob
+++ b/bin/Runjob
@@ -1,4 +1,4 @@
-#!/bin/ksh
+#!/bin/bash
 #MNH_LIC Copyright 1994-2014 CNRS, Meteo-France and Universite Paul Sabatier
 #MNH_LIC This is part of the Meso-NH software governed by the CeCILL-C licence
 #MNH_LIC version 1. See LICENSE, CeCILL-C_V1-en.txt and CeCILL-C_V1-fr.txt  
diff --git a/bin/eval_dollar b/bin/eval_dollar
index fd3bc3e8c7bf5ad038f042d44fc44507c360dec9..16d62787192cbb7e83c7b8c53af93a0e535abcba 100755
--- a/bin/eval_dollar
+++ b/bin/eval_dollar
@@ -1,4 +1,4 @@
-#!/bin/ksh
+#!/bin/bash
 #MNH_LIC Copyright 1994-2014 CNRS, Meteo-France and Universite Paul Sabatier
 #MNH_LIC This is part of the Meso-NH software governed by the CeCILL-C licence
 #MNH_LIC version 1. See LICENSE, CeCILL-C_V1-en.txt and CeCILL-C_V1-fr.txt  
diff --git a/bin/scandollar b/bin/scandollar
index 66df1c316ff283752046cc61d5e7adc322564467..1d4b7f09a2a74b6dae1ca94d9638bca9e06e6915 100755
--- a/bin/scandollar
+++ b/bin/scandollar
@@ -1,4 +1,4 @@
-#!/bin/ksh
+#!/bin/bash
 #MNH_LIC Copyright 1994-2014 CNRS, Meteo-France and Universite Paul Sabatier
 #MNH_LIC This is part of the Meso-NH software governed by the CeCILL-C licence
 #MNH_LIC version 1. See LICENSE, CeCILL-C_V1-en.txt and CeCILL-C_V1-fr.txt  
diff --git a/bin/spl b/bin/spl
index 1e27a38134f7b00f8c3fa148bb9406501122accb..7d6e4158a71aa63d389d478fddea810e60155cdd 100755
--- a/bin/spl
+++ b/bin/spl
@@ -1,4 +1,4 @@
-#!/bin/ksh
+#!/bin/bash
 #MNH_LIC Copyright 1994-2014 CNRS, Meteo-France and Universite Paul Sabatier
 #MNH_LIC This is part of the Meso-NH software governed by the CeCILL-C licence
 #MNH_LIC version 1. See LICENSE, CeCILL-C_V1-en.txt and CeCILL-C_V1-fr.txt  
diff --git a/bin/spll b/bin/spll
index 877c959b74967fa905a305041ad5a2b60c81dac2..70f9d9f59bc1445be9bc4e61d7bd96d0c6ac40b8 100755
--- a/bin/spll
+++ b/bin/spll
@@ -1,4 +1,4 @@
-#!/bin/ksh
+#!/bin/bash
 #MNH_LIC Copyright 1994-2014 CNRS, Meteo-France and Universite Paul Sabatier
 #MNH_LIC This is part of the Meso-NH software governed by the CeCILL-C licence
 #MNH_LIC version 1. See LICENSE, CeCILL-C_V1-en.txt and CeCILL-C_V1-fr.txt  
diff --git a/bin/spln b/bin/spln
index a6099a2dd74d4ab1709b07b9aed4e975ad8cca17..83fa85f62a916b6f044dcbe6c88404288debf573 100755
--- a/bin/spln
+++ b/bin/spln
@@ -1,4 +1,4 @@
-#!/bin/ksh
+#!/bin/bash
 #MNH_LIC Copyright 1994-2014 CNRS, Meteo-France and Universite Paul Sabatier
 #MNH_LIC This is part of the Meso-NH software governed by the CeCILL-C licence
 #MNH_LIC version 1. See LICENSE, CeCILL-C_V1-en.txt and CeCILL-C_V1-fr.txt