diff --git a/.zshrc2 b/.zshrc2
index 80493d4..084eddd 100644
--- a/.zshrc2
+++ b/.zshrc2
@@ -92,3 +92,30 @@ bindkey "^[[1~" beginning-of-line
 bindkey "^[[4~" end-of-line
 bindkey "^[OH" beginning-of-line
 bindkey "^[OF" end-of-line
+
+# dfs
+dfs()
+{
+    case $1 in
+        update ) "$DOTFILES/update.sh" ;;
+        force-update ) (
+            cd "$DOTFILES" 
+            git fetch --all
+            ref=$(git symbolic-ref --short HEAD 2> /dev/null)  || ref=$(git rev-parse --short HEAD 2> /dev/null)  || return 0
+            for b in $(git for-each-ref refs/heads --format='%(refname)') ; do git checkout ${b#refs/heads/} ; git pull --ff-only ; done
+            git checkout -c advice.detachedHead=false $ref)
+            ;;
+        version ) (cd "$DOTFILES" && git rev-parse HEAD) ;;
+        reset  )
+            antigen reset 1> /dev/null
+            rm -rf $HOME/.antigen
+            "$DOTFILES/install.sh" -r
+            dfs update
+            "$DOTFILES/install.sh" -i
+            echo 'Done. Please open a new shell to see the changes.'
+            ;;
+        cd     ) cd "$DOTFILES" ;;
+        log    ) "$DOTFILES/tools/common.sh" "post_log" "INFO" "dfs" "$2" ;;
+        *      ) echo "unknown command \"$1\". available: update, force-update, version, reset, cd, log" ;;
+    esac
+}
diff --git a/scripts/dfs b/scripts/dfs
deleted file mode 100755
index 02523ae..0000000
--- a/scripts/dfs
+++ /dev/null
@@ -1,28 +0,0 @@
-#!/bin/bash
-
-THIS_DIR=$( cd "$( dirname "${BASH_SOURCE[0]:-${(%):-%x}}" )" && pwd )
-DOTFILES=${DOTFILES:-$( cd "$THIS_DIR/.." && pwd )}
-source "$DOTFILES/tools/common.sh"
-
-case $1 in
-    update ) "$DOTFILES/update.sh" ;;
-    force-update ) (
-        cd "$DOTFILES" 
-        git fetch --all
-        ref=$(git symbolic-ref --short HEAD 2> /dev/null)  || ref=$(git rev-parse --short HEAD 2> /dev/null)  || return 0
-        for b in $(git for-each-ref refs/heads --format='%(refname)') ; do git checkout ${b#refs/heads/} ; git pull --ff-only ; done
-        git checkout -c advice.detachedHead=false $ref)
-        ;;
-    version ) (cd "$DOTFILES" && git rev-parse HEAD) ;;
-    reset  )
-        antigen reset 1> /dev/null
-        rm -rf $HOME/.antigen
-        "$DOTFILES/install.sh" -r
-        dfs update
-        "$DOTFILES/install.sh" -i
-        echo 'Done. Please open a new shell to see the changes.'
-        ;;
-    cd     ) cd "$DOTFILES" ;;
-    log    ) post_log "INFO" "dfs" "$2" ;;
-    *      ) echo "unknown command \"$1\". available: update, force-update, version, reset, cd, log" ;;
-esac
diff --git a/tools/common.sh b/tools/common.sh
old mode 100644
new mode 100755
index 59e87ff..468f24f
--- a/tools/common.sh
+++ b/tools/common.sh
@@ -151,7 +151,7 @@ get_linux_dist() {
 }
 
 if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
-    $1
+    $1 "${@:2}"
 else
     setup_color
 fi