diff --git a/README.md b/README.md
index afe85f0..1cdc77d 100644
--- a/README.md
+++ b/README.md
@@ -23,15 +23,11 @@ Optional:
 wget http://zawz.net/zpkg/install.sh
 sh install.sh
 ```
-> By default the config is installed to /etc/zpkg
+> By default the config is installed to /etc/zpkg.
+> This can be changed with the -c option
 
 If you wish to use another repository, substitute `zawz.net/zpkg` for your desired target  
 
-
-#### Installing to a custom location
-
-Add the -c option to the install script to specify a custom config path for the install
-
 ### Uninstalling
 
 ```shell
diff --git a/server_deploy.sh b/server_deploy.sh
index 294d1bf..af16fde 100755
--- a/server_deploy.sh
+++ b/server_deploy.sh
@@ -4,10 +4,11 @@
 
 ssh="$SSH_USER@$SSH_ADDR"
 
-DIR=tmp
-PKG=zpkg
-DEST=/usr/local/bin
-BASHDEST=/etc/bash_completion.d
+
+random_string()
+{
+  tr -cd '[:alnum:]' < /dev/urandom | head -c$1
+}
 
 # build
 ./compile.sh || exit $?
@@ -16,7 +17,11 @@ BASHDEST=/etc/bash_completion.d
 ssh "$ssh" mkdir -p "$PKG_PATH" || exit $?
 scp .config server_scripts/* "$ssh":~/ || exit $?
 
-fullpath="$DIR/$PKG/ROOT"
+PKG=zpkg
+DEST=/usr/local/bin
+BASHDEST=/etc/bash_completion.d
+tmpdir="/tmp/zpkg$(random_string 5)"
+fullpath="$tmpdir/$PKG/ROOT"
 # setup package sources
 mkdir -p "$fullpath$DEST" || exit $?
 mkdir -p "$fullpath$BASHDEST" || exit $?
@@ -24,13 +29,13 @@ cp completion/zpkg.bash "$fullpath$BASHDEST" || exit $?
 mv zpkg "$fullpath$DEST" || exit $?
 # create and send package
 (
-  cd tmp/zpkg || exit $?
+  cd "$tmpdir/$PKG" || exit $?
   tar -cvJf zpkg.tar.xz * || exit $?
   # send package
   scp zpkg.tar.xz "$ssh":~/"$PKG_PATH" || exit $?
 )
 # cleanup
-rm -rd "$DIR"
+rm -rd "$tmpdir"
 # update database
 ssh "$ssh" sh database_update.sh || exit $?
 # generate install script
diff --git a/server_scripts/gen_install.sh b/server_scripts/gen_install.sh
index d301841..0552b3f 100755
--- a/server_scripts/gen_install.sh
+++ b/server_scripts/gen_install.sh
@@ -11,6 +11,20 @@ cat .config >> install.sh
 # body
 echo '
 
+usage()
+{
+  echo "$(basename "$0")" [option...]
+  echo "
+Options:
+  -h         Show this help message
+  -c <path>  Use this path as config"
+}
+
+random_string()
+{
+  tr -cd '[:alnum:]' < /dev/urandom | head -c$1
+}
+
 config_path=/etc/zpkg
 
 while getopts ":hc:" opt;
@@ -51,22 +65,23 @@ sudo mkdir -p "$config_path" || exit $?
 sudo mv zpkg.conf "$config_path" || exit $?
 
 # download zpkg
-mkdir -p tmp || exit $?
+tmpdir=/tmp/zpkg$(random_string 5)
+mkdir -p "$tmpdir" || exit $?
 (
-  cd tmp || exit $?
+  cd "$tmpdir" || exit $?
   if ! wget "$HTTP_ADDR/$HTTP_PATH/zpkg.tar.xz" -q -O "zpkg.tar.xz"
   then
     echo "Cannot reach $HTTP_ADDR/$HTTP_PATH" > /dev/stderr
     exit 1
   fi
-  tar xf zpkg.tar.xz || exit $?
+  tar -xf zpkg.tar.xz || exit $?
 
 # install zpkg package
   ROOT/usr/local/bin/zpkg install zpkg || exit $?
 )
 
 # cleanup
-rm -rd tmp || exit $?
+rm -rd "$tmpdir" || exit $?
 zpkg update-database >/dev/null || exit $?
 
 ' >> install.sh
diff --git a/src/print.sh b/src/print.sh
index d01a39c..661cba1 100644
--- a/src/print.sh
+++ b/src/print.sh
@@ -21,7 +21,7 @@ Admin operations:
 Options:
   -h          Display this help
   -c <path>   Custom config path
-  -f          Force run when root
+  -f          Force running even when root
 '
 }