diff --git a/bin/aur.sh b/bin/aur.sh
index f9c2835..ea61d27 100755
--- a/bin/aur.sh
+++ b/bin/aur.sh
@@ -16,13 +16,26 @@ tmpbuild=${TMPDIR-/tmp}/aur.sh.$$
 build="${BUILDDIR:-$tmpbuild}"
 test -d "$build" || mkdir -p "$build" || exit 1
 
-# Parse commandline: anything prefixed with - is a makepkg option
+# ------------------------------------------------------------------------------
+# Parse commandline: anything prefixed with - is a makepkg option, others are package names
 packages=()
-flags=()
-aur_get=aur_get_aur4 # new one not working yet
+makepkg_args=()
+
+aur_get=aur_get_aur4
 DL_ONLY=false
+ASK=false
+
+add_makepkg_arg() {
+  makepkg_args=("${makepkg_args[@]}" "$1")
+}
 
+_proxy_args=0
 for cx in "$@"; do
+  if [ $_proxy_args -gt 0 ]; then
+    add_makepkg_arg "$cx"
+    _proxy_args=$[$_proxy_args - 1]
+    continue
+  fi
   case "$cx" in
     --old-aur)
       warn "[AUR] Using old AUR (--old-aur)"
@@ -30,31 +43,43 @@ for cx in "$@"; do
     -X|--download-only)
       warn "[AUR] Building was disabled (-X)"
       DL_ONLY=true;;
+    --ask)
+      ASK=true;;
     -h|--help)
       echo "Usage $0 [-h] [-X] [makepkg options] <packages>"
+      echo "Taeyeon's aur.sh (c) 2014-2015 Taeyeon Mori (not related to http://aur.sh)"
+      echo
+      echo "A simple AUR client realized in bash/zsh"
       echo
       echo "aur.sh options:"
       echo "  -h, --help    Display this message"
       echo "  -X, --download-only"
       echo "                Only download the PKGBUILDs from AUR, don't build"
       echo "  --old-aur     Use the old (non-git) AUR"
+      echo "  --ask         Ask before installing packages (removes --noconfirm)"
       echo
       echo "Useful makepkg options:"
       echo "  -i            Install package after building it"
       echo "  -s            Install dependencies from official repos"
+      echo "  --pkg <list>  Only build selected packages (when working with split packages)"
       exit 0
       ;;
+    --pkg|--key|--config) # These take an additional value
+      _proxy_args=1
+      add_makepkg_arg "$cx";;
     -*)
-      makepkg_flags=("${makepkg_flags[@]}" "$cx");;
+      add_makepkg_arg "$cx";;
     *)
       packages=("${packages[@]}" "$cx");;
   esac
 done
 
+
+# -------------------------------------------------------------------------
 # aur functions
 aur_get_old() {
-  [ -d "$1/.git" ] && error "Local copy of $1 is from AUR4. Cannot use --old-aur with it!" && return 32
-  curl https://aur.archlinux.org/packages/${1:0:2}/$1/$1.tar.gz | tar xz
+  [ -d "$1/.git" ] && err "Local copy of $1 is a Git clone from AUR v4. Don't use --old-aur with it!" && return 32
+  curl "https://aur.archlinux.org/packages/${1:0:2}/$1/$1.tar.gz" | tar xz
 }
 
 aur_get_aur4() {
@@ -67,18 +92,27 @@ aur_get_aur4() {
       ans=n
       ask "Overwrite $1?" ans
       [ "$ans" = "y" ] || [ "$ans" = "yes" ] || [ "$ans" = "Y" ] || return 32
-      rm -rf $1
+      rm -rf "$1"
     fi
-    git clone https://aur4.archlinux.org/$1.git/
+    git clone "https://aur4.archlinux.org/$1.git/" "$1"
   fi
 }
 
+# ----------------------------------------------------------------------------
+# Actual work starts here
 # Print some info
 msg "[AUR] AURDIR=$AURDIR; PKGDEST=$PKGDEST"
 test "$build" = "$PWD" || \
   msg "[AUR] Working in $build."
 msg "[AUR] Building packages: $packages"
 
+if ! $ASK && ! $DL_ONLY; then
+  msg "[AUR] Updating sudo timestamp"
+  sudo -v
+
+  add_makepkg_arg "--noconfirm"
+fi
+
 # Process packages
 for p in "${packages[@]}"; do
 
@@ -91,7 +125,7 @@ for p in "${packages[@]}"; do
     grep -q "#CUSTOMPKG" $p/PKGBUILD && \
     warn "[AUR] $p: Found #CUSTOMPKG; not updating PKGBUILD from AUR!" \
   } || \
-    $aur_get $p || throw 2 "[AUR] $p: Couldn't download package"
+    $aur_get "$p" || throw 2 "[AUR] $p: Couldn't download package"
 
   if $DL_ONLY; then continue; fi
 
@@ -99,9 +133,12 @@ for p in "${packages[@]}"; do
   cp -r "$p" "$build"
   cd "$build/$p"
 
+  # Update timestamp, but don't ask for pw if it expired
+  sudo -vn
+
   # Run makepkg
   msg "[AUR] $p: Building..."
-  makepkg "${makepkg_flags[@]}" || \
+  makepkg "${makepkg_args[@]}" || \
     throw 1 "[AUR] $p: Makepkg failed!"
 
   msg "[AUR] $p: Done!"
@@ -111,7 +148,7 @@ msg "[AUR] All Done!"
 
 # Remove the builddir if we previously created it.
 cd "$AURDEST"
-test "$build" = "$tmpbuild" && \
+[ "$build" = "$tmpbuild" ] && \
   warn "[AUR] Removing temporary directory $tmpbuild" && \
   rm -rf "$tmpbuild"
 
diff --git a/lib/libsh-utils.sh b/lib/libsh-utils.sh
index 979c1f3..4213179 100644
--- a/lib/libsh-utils.sh
+++ b/lib/libsh-utils.sh
@@ -19,11 +19,3 @@ color() {
     return $res
 }
 
-# Append to array
-push() {
-    local arr="$1"; shift
-
-    for val in "$@"; do
-        eval "$arr[\${#$arr[@]}]=\"\$val\""
-    done
-}