diff --git a/bin/generateJsDoc.sh b/bin/generateJsDoc.sh
index c9424b74..cf876278 100755
--- a/bin/generateJsDoc.sh
+++ b/bin/generateJsDoc.sh
@@ -1,15 +1,15 @@
-#!/bin/bash
+#!/bin/sh
 
 if [ -d "../bin" ]; then
   cd "../"
 fi
 
-type -P node &>/dev/null || { 
+hash node > /dev/null 2>&1 || { 
   echo "You need to install node!" >&2
   exit 1 
 }
 
-type -P doc.md &>/dev/null || { 
+hash doc.md > /dev/null 2>&1 || { 
   echo "You need to install doc.md! npm install -g doc.md" >&2
   exit 1 
 }
diff --git a/bin/run.sh b/bin/run.sh
index 0b72dc3f..3256d0fd 100755
--- a/bin/run.sh
+++ b/bin/run.sh
@@ -1,4 +1,4 @@
-#!/bin/bash                 
+#!/bin/sh
 
 #Move to the folder where ep-lite is installed
 FOLDER=$(dirname $(readlink -f $0))
@@ -10,20 +10,20 @@ if [ -d "../bin" ]; then
 fi
 
 #Stop the script if its started as root
-if [[ $EUID -eq 0 ]]; then
+if [ "$(id -u)" -eq 0 ]; then
    echo "You shouldn't start Etherpad-Lite as root!" 1>&2
    echo "Use authbind if you want to use a port lower than 1024 -> http://en.wikipedia.org/wiki/Authbind" 1>&2
    exit 1
 fi
 
 #Is node installed?
-type -P node &>/dev/null || { 
+hash node > /dev/null 2>&1 || { 
   echo "You need to install node to run Etherpad-Lite!" >&2
   exit 1 
 }
 
 #Is npm installed?
-type -P npm &>/dev/null || { 
+hash npm > /dev/null 2>&1 || { 
   echo "You need to install npm to run Etherpad-Lite!" >&2
   exit 1 
 }
@@ -43,12 +43,12 @@ NEEDED_VERSION="1.6.2"
 if [ -f "static/js/jquery.min.js" ]; then
   VERSION=$(cat static/js/jquery.min.js | head -n 2 | tail -n 1 | grep -o "v[0-9]*\.[0-9]*\.[0-9]*");
   
-  if [[ ${VERSION:1} = $NEEDED_VERSION ]]; then
+  if [ ${VERSION#v} = $NEEDED_VERSION ]; then
     DOWNLOAD_JQUERY="false"
   fi
 fi
 
-if [[ $DOWNLOAD_JQUERY = "true" ]]; then
+if [ $DOWNLOAD_JQUERY = "true" ]; then
   wget -O static/js/jquery.min.js http://code.jquery.com/jquery-$NEEDED_VERSION.min.js
 fi
 
diff --git a/bin/runDebug.sh b/bin/runDebug.sh
index 46eec8e8..041edbb6 100755
--- a/bin/runDebug.sh
+++ b/bin/runDebug.sh
@@ -1,6 +1,6 @@
-#!/bin/bash
+#!/bin/sh
 
-type -P node-inspector &>/dev/null || { 
+hash node-inspector > /dev/null 2>&1 || { 
   echo "You need to install node-inspector to run the tests!" >&2
   echo "You can install it with npm" >&2
   echo "Run: npm install node-inspector" >&2
diff --git a/bin/runSafe.sh b/bin/runSafe.sh
index 180de1fe..d7d2b99c 100755
--- a/bin/runSafe.sh
+++ b/bin/runSafe.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 
 #This script ensures that ep-lite is automatically restarting after an error happens
 
@@ -49,12 +49,12 @@ do
   bin/run.sh >>$1 2>>$1
   
   #Send email
-  if [ $ERROR_HANDLING == 1 ]; then
+  if [ $ERROR_HANDLING = 1 ]; then
     TIME_NOW=$(date +%s)
     TIME_SINCE_LAST_SEND=$(($TIME_NOW - $LAST_EMAIL_SEND))
     
     if [ $TIME_SINCE_LAST_SEND -gt $TIME_BETWEEN_EMAILS ]; then
-      echo -e "Server was restared at: $(date)\nThe last 50 lines of the log before the error happens:\n $(tail -n 50 $1)" | mail -s "Pad Server was restarted" $EMAIL_ADDRESS
+      printf "Server was restared at: $(date)\nThe last 50 lines of the log before the error happens:\n $(tail -n 50 $1)" | mail -s "Pad Server was restarted" $EMAIL_ADDRESS
       
       LAST_EMAIL_SEND=$TIME_NOW
     fi
diff --git a/bin/runTests.sh b/bin/runTests.sh
index f22004e3..aa36dbba 100755
--- a/bin/runTests.sh
+++ b/bin/runTests.sh
@@ -1,6 +1,6 @@
-#!/bin/bash
+#!/bin/sh
 
-type -P nodeunit &>/dev/null || { 
+hash nodeunit > /dev/null 2>&1 || { 
   echo "You need to install Nodeunit to run the tests!" >&2
   echo "You can install it with npm" >&2
   echo "Run: npm install nodeunit" >&2