5 files changed, 12 insertions, 12 deletions
diff --git a/packages/ubuntu/debian/postinst b/packages/ubuntu/debian/postinst
index 202f79aa8..fe7f3995c 100755
--- a/packages/ubuntu/debian/postinst
+++ b/packages/ubuntu/debian/postinst
@@ -1,4 +1,5 @@
-#!/bin/sh -e
+#!/usr/bin/env sh
+set -e
 
 case "$1" in
     configure)
diff --git a/packages/ubuntu/debian/postrm b/packages/ubuntu/debian/postrm
index 3347514a1..7a4b65e62 100644
--- a/packages/ubuntu/debian/postrm
+++ b/packages/ubuntu/debian/postrm
@@ -1,5 +1,4 @@
-#!/bin/sh -e
-
+#!/usr/bin/env sh
 set -e
 
 /sbin/ldconfig
diff --git a/packages/ubuntu/debian/preinst b/packages/ubuntu/debian/preinst
index 89699e385..3dd495a35 100644
--- a/packages/ubuntu/debian/preinst
+++ b/packages/ubuntu/debian/preinst
@@ -1,10 +1,9 @@
-#! /bin/sh
+#!/usr/bin/env sh
+set -e
 # preinst script
 #
 # see: dh_installdeb(1)
 
-set -e
-
 # summary of how this script can be called:
 #        * <new-preinst> `install'
 #        * <new-preinst> `install' <old-version>
diff --git a/packages/ubuntu/debian/prerm b/packages/ubuntu/debian/prerm
index 8f91692e0..20a3b0e2a 100755
--- a/packages/ubuntu/debian/prerm
+++ b/packages/ubuntu/debian/prerm
@@ -1,4 +1,5 @@
-#!/bin/sh -e
+#!/usr/bin/env sh
+set -e
 
 case "$1" in
 upgrade)
diff --git a/packages/version.sh b/packages/version.sh
index 1563c7787..957795573 100755
--- a/packages/version.sh
+++ b/packages/version.sh
@@ -1,9 +1,9 @@
-#!/bin/bash
+#!/usr/bin/env sh
 
-SCRIPTPATH="$(cd "$(dirname "$0")"; pwd -P)"
-RELEASE="$(cd ${SCRIPTPATH}; cat ../configure.ac|grep C_INIT|cut -c 20-|rev|cut -c 3-|rev)"
-MAJOR_RELEASE="$(cd ${SCRIPTPATH}; cat ../configure.ac|grep C_INIT|cut -c 20-|rev|cut -c 3-|rev|cut -d. -f1)"
-REVISION="$(cd ${SCRIPTPATH}; git rev-list --all |wc -l | tr -d '[[:space:]]')"
+SCRIPTPATH="$(cd "$(dirname "$0")" || exit 1; pwd -P)"
+RELEASE="$(cd "${SCRIPTPATH}" || exit 1; < ../configure.ac grep C_INIT | cut -c 20- | rev | cut -c 3- | rev)"
+MAJOR_RELEASE="$(cd "${SCRIPTPATH}" || exit 1; < ../configure.ac grep C_INIT | cut -c 20- | rev | cut -c 3- | rev | cut -d. -f1)"
+REVISION="$(cd "${SCRIPTPATH}" || exit 1; git rev-list --all | wc -l | tr -d '[[:space:]]')"
 
 get_release() {
 	echo "${RELEASE}"