Aperfeiçoa o build.sh.

slides/build.sh

+#-----------------------------------------------------------------------
+
 if [ "$1" = "-h" ]; then
     echo 'Usage:'
     echo '  $1: filename without extension, e.g. `slides`.'
+    echo '    if $1 is -h, then shows this message.'
+    echo '    if $1 is --all, then compiles all Rnw files.'
     echo '  $2: {0, 1}, remove LaTeX auxiliary files (.log, .aux, ...).'
-else
-    FILENAME=$1
-    echo "\nConverting Rnw to tex.\n"
-    knit $FILENAME.Rnw
-    echo "\nConverting tex to PDF.\n"
-    pdflatex $FILENAME.tex
+    exit 0
+fi
+
+#-----------------------------------------------------------------------
+
+if [ "$1" = "--all" ]; then
+    RNWFILES=$(ls *.Rnw)
+    echo $RNWFILES
+    for RNW in $RNWFILES; do
+        FILE="${RNW%.*}"
+        echo $FILE
+        Rscript -e "require(knitr); knit(\"$RNW\")"
+        pdflatex $FILE
+        pdflatex $FILE
+        pdflatex $FILE
+        rubber --clean $FILE
+    done
+    exit 0
 fi
 
+#-----------------------------------------------------------------------
+
+RNW=$1
+FILE="${RNW%.*}"
+echo "\nConverting Rnw to tex.\n"
+knit $RNW
+echo "\nConverting tex to PDF.\n"
+pdflatex $FILE
+
 if [ "$#" -eq 2 ]; then
     if [ "$2" -eq 1 ]; then
         echo "\nDeleting LaTeX auxiliary files.\n"
-        rubber --clean $FILENAME
+        rubber --clean $FILE
     fi
 fi
+
+exit 0
+
+#-----------------------------------------------------------------------