diff --git a/.travis.yml b/.travis.yml
index a6b898c6c..325d573ad 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,6 +14,7 @@ addons:
       - libxml2-dev
       - valgrind
       - cppcheck
+      - shellcheck
 os:
   - linux
 notifications:
diff --git a/process/Makefile b/process/Makefile
new file mode 100644
index 000000000..8edfed0b8
--- /dev/null
+++ b/process/Makefile
@@ -0,0 +1,6 @@
+SCRIPTS=compress.sh send-bz2-report send-zip-report create-orders \
+run-turn sendreports.sh
+IGNORE=sendreport.sh
+
+shellcheck: $(SCRIPTS)
+	shellcheck $(SCRIPTS)
diff --git a/process/compress.sh b/process/compress.sh
index 116b3d061..4c0147978 100755
--- a/process/compress.sh
+++ b/process/compress.sh
@@ -1,24 +1,25 @@
 #!/bin/bash
 
-if [ -z $ERESSEA ]; then
+if [ -z "$ERESSEA" ]; then
   echo "You need to define the \$ERESSEA environment variable to run $0"
   exit -2
 fi
 
-GAME=$ERESSEA/game-$1
-GAME_NAME=$(grep -w name $GAME/eressea.ini | sed 's/.*=\s*//')
+GAME="$ERESSEA/game-$1"
+GAME_NAME=$(grep -w name "$GAME/eressea.ini" | sed 's/.*=\s*//')
 
 TURN=$2
-if [ -z $TURN ]
+if [ -z "$TURN" ]
 then
-  TURN=`cat $GAME/turn`
+  TURN=$(cat "$GAME/turn")
 fi
 
-if [ ! -d $GAME/reports ]; then
+if [ ! -d "$GAME/reports" ]; then
   echo "cannot find reports directory in $GAME"
   exit -1
 fi
 
-cd $GAME/reports
-$ERESSEA/server/bin/compress.py $TURN "$GAME_NAME"
-cd -
+cd "$GAME/reports" || exit
+"$ERESSEA/server/bin/compress.py" "$TURN" "$GAME_NAME"
+cd - || exit
+
diff --git a/process/create-orders b/process/create-orders
index b0ca292f4..7016741ac 100755
--- a/process/create-orders
+++ b/process/create-orders
@@ -3,26 +3,25 @@
 GAME=$1
 TURN=$2
 
-if [ ! -d $ERESSEA/game-$GAME ] ; then
+if [ ! -d "$ERESSEA/game-$GAME" ] ; then
   echo "No such game: $GAME"
   exit 1
 fi
 
-cd $ERESSEA/game-$GAME
+cd "$ERESSEA/game-$GAME" || exit
 
-if [ -d orders.dir.$TURN ]; then
+if [ -d "orders.dir.$TURN" ]; then
   echo "orders.dir.$TURN already exists"
 else
-  mv orders.dir orders.dir.$TURN
+  mv orders.dir "orders.dir.$TURN"
   mkdir -p orders.dir
 fi
-ls -1rt orders.dir.$TURN/turn-* | xargs cat > orders.$TURN
+ls -1rt "orders.dir.$TURN/turn-*" | xargs cat > "orders.$TURN"
 
 lockfile -r3 -l120 orders.queue.lock
 if [ -e orders.queue ] ; then
-  mv orders.queue orders.dir.$TURN/orders.queue
+  mv orders.queue "orders.dir.$TURN/orders.queue"
 fi
 rm -f orders.queue.lock
-fi
 
 
diff --git a/process/run-turn b/process/run-turn
index c0d0d6a40..9fa6a325c 100755
--- a/process/run-turn
+++ b/process/run-turn
@@ -1,17 +1,17 @@
 #!/bin/sh
 
-GAME=$1
-TURN=$2
+GAME="$1"
+TURN="$2"
 
-if [ ! -d $ERESSEA/game-$GAME ] ; then
+if [ ! -d "$ERESSEA/game-$GAME" ] ; then
   echo "No such game: $GAME"
   exit 1
 fi
 
-cd $ERESSEA/game-$GAME
+cd "$ERESSEA/game-$GAME" || exit
 
 echo "running turn $TURN, game $GAME"
-$ERESSEA/server/bin/eressea -v3 -t $TURN run-turn.lua
+"$ERESSEA/server/bin/eressea" -v3 -t "$TURN" run-turn.lua
 mkdir -p log
-ln -f eressea.log log/eressea.log.$TURN
+ln -f eressea.log "log/eressea.log.$TURN"
 
diff --git a/process/send-bz2-report b/process/send-bz2-report
index 2282a9f24..c9fb87840 100755
--- a/process/send-bz2-report
+++ b/process/send-bz2-report
@@ -1,13 +1,12 @@
 #!/bin/bash
-if [ -z $ERESSEA ]; then
-  ERESSEA=`echo $PWD |sed -e 's/\/game.*//'`
+if [ -z "$ERESSEA" ]; then
+  ERESSEA=$(echo "$PWD" |sed -e 's/\/game.*//')
   echo "Assuming that ERESSEA=$ERESSEA"
 fi
 if [ ! -f reports.txt ]; then
   echo "need to run $0 from the report direcory"
   exit -2
 fi
-source $HOME/bin/functions.sh
 
 TEMPLATE=report-mail.txt
 if [ "$1" == "-Lde" ]
@@ -26,4 +25,6 @@ addr=$1
 subj=$2
 shift 2
 
-cat $ERESSEA/server/etc/$TEMPLATE | mutt -F $ERESSEA/etc/muttrc -s "$subj" -a $* -- $addr
+mutt -F "$ERESSEA/etc/muttrc" -s "$subj" -a "$@" -- "$addr" \
+	< "$ERESSEA/server/etc/$TEMPLATE"
+
diff --git a/process/send-zip-report b/process/send-zip-report
index 6ea2ea8e7..89f742b82 100755
--- a/process/send-zip-report
+++ b/process/send-zip-report
@@ -1,6 +1,7 @@
 #!/bin/bash
-if [ -z $ERESSEA ]; then
-  ERESSEA=`echo $PWD |sed -e 's/\/game.*//'`
+
+if [ -z "$ERESSEA" ]; then
+  ERESSEA=$(echo "$PWD" |sed -e 's/\/game.*//')
   echo "Assuming that ERESSEA=$ERESSEA"
 fi
 if [ ! -f reports.txt ]; then
@@ -9,7 +10,7 @@ if [ ! -f reports.txt ]; then
 fi
 
 PWD=$(pwd)
-GAME=$(dirname $PWD)
+GAME=$(dirname "$PWD")
 
 TEMPLATE=report-mail.txt
 if [ "$1" == "-Lde" ]
@@ -24,13 +25,13 @@ then
   shift
 fi
 
-if [ -e $GAME/$TEMPLATE ]; then
-TEMPLATE=$GAME/$TEMPLATE
+if [ -e "$GAME/$TEMPLATE" ]; then
+TEMPLATE="$GAME/$TEMPLATE"
 else
-TEMPLATE=$ERESSEA/server/etc/$TEMPLATE
+TEMPLATE="$ERESSEA/server/etc/$TEMPLATE"
 fi
 
-if [ ! -e $TEMPLATE ]; then
+if [ ! -e "$TEMPLATE" ]; then
   echo "no such email template: $TEMPLATE"
   exit -3
 fi
@@ -42,8 +43,7 @@ done
 addr=$1
 subject=$2
 shift 2
-mutt -F $ERESSEA/etc/muttrc -s "$subject" -a $* -- $addr < $TEMPLATE
 
-if [ $? -ne 0 ] ; then
-  echo "Sending failed for email/report: $2/$3"
-fi
+mutt -F "$ERESSEA/etc/muttrc" -s "$subject" -a "$@" -- "$addr" \
+	< "$TEMPLATE" || echo "Sending failed for email/report: $2/$3"
+
diff --git a/process/sendreports.sh b/process/sendreports.sh
index c2bfa741c..d1adba943 100755
--- a/process/sendreports.sh
+++ b/process/sendreports.sh
@@ -3,30 +3,23 @@
 ##
 ## Prepare the report
 
-if [ -z $ERESSEA ]; then
+if [ -z "$ERESSEA" ]; then
   echo "You have to define the \$ERESSEA environment variable to run $0"
   exit -2
 fi
-source $HOME/bin/functions.sh
 
-if [ ! -z $1 ]; then
-  GAME=$ERESSEA/game-$1
+if [ ! -z "$1" ]; then
+  GAME="$ERESSEA/game-$1"
 else
   GAME=$ERESSEA
 fi
 
-cd $GAME/reports || abort "could not chdir to reports directory"
+cd "$GAME/reports" || exit
 for REPORT in *.sh
 do
   echo -n "Sending "
-  basename $REPORT .sh
-  bash $REPORT
+  basename "$REPORT" .sh
+  bash "$REPORT"
 done
-cd -
-
-if [ -e $GAME/ages.sh ]; then
-  cd $GAME
-  ./ages.sh
-  cd -
-fi
+cd - || exit
 
diff --git a/s/travis-build b/s/travis-build
index 4c5237fdf..2da3ed7b5 100755
--- a/s/travis-build
+++ b/s/travis-build
@@ -26,4 +26,6 @@ cppcheck --version
 cppcheck --quiet --error-exitcode=1 src
 s/runtests -V
 integration_tests
+cd ../process
+make