diff --git a/.bash_aliases b/.bash_aliases
index 5267820..fd1ea9f 100644
--- a/.bash_aliases
+++ b/.bash_aliases
@@ -43,7 +43,6 @@ alias sha='shasum -a 256'
 alias getpass="openssl rand -base64 12"
 alias diff='colordiff'
 alias mount='mount | column -t'
-alias start_bt='sudo systemctl start bluetooth'
 alias upgrade_all='sudo apt update && sudo apt upgrade'
 alias tar-it='tar -czf "../${PWD##*/}.tar.gz" .'
 alias gh='history|grep'
@@ -80,8 +79,6 @@ alias wake="echo $'\a'"  # command; wake &
 alias music='mplayer -shuffle ~/Music/*'
 
 
-# python
-
 # initializes first ./*/*/activate
 # alias va='source "$(find -P . -maxdepth 3 -type f -name activate | sort | head -n 1)" &>/dev/null || echo "error: virtual env not found, use python3 -m virtualenv venv" >&2'
 alias ve='python3 -m virtualenv venv && . venv/bin/activate'
diff --git a/.bash_functions b/.bash_functions
index 7e2d5fc..f57d7be 100644
--- a/.bash_functions
+++ b/.bash_functions
@@ -77,20 +77,27 @@ extract () {
     if [ -z "$1" ]; then  # if string non-zero
         # display usage if no parameters given
         echo "Usage: extract <path/file_name>.<zip|rar|bz2|gz|tar|tbz2|tgz|Z|7z|xz|ex|tar.bz2|tar.gz|tar.xz>"
+        return 100
     else
-        if [ -f "$1" ] ; then   # if file exists
-            NAME=${1%.*}  #
-            mkdir "$NAME" && cd "$NAME" || return
+        if [ -f "$1" ]; then   # if file exists
+            NAME=${1%.*}
+
+            if [ -e "$NAME" ]; then
+                echo "$NAME - exists" >&2
+                return 1
+            fi
+
+            mkdir "$NAME" && cd "$NAME" || return 1
 
             case $1 in
                 *.tar.bz2)  tar xvjf     ../"$1" ;;
-                *.tar.gz)   tar xvzf -   ../"$1" ;;
+                *.tar.gz)   tar xvzf     ../"$1" ;;
                 *.tar.xz)   tar xvJf     ../"$1" ;;
                 *.lzma)     unlzma       ../"$1" ;;
                 *.bz2)      bunzip2      ../"$1" ;;
                 *.rar)      unrar x -ad  ../"$1" ;;
                 *.gz)       gunzip       ../"$1" ;;
-                *.tar)      tar xvf -    ../"$1" ;;
+                *.tar)      tar xvf      ../"$1" ;;
                 *.tbz2)     tar xvjf     ../"$1" ;;
                 *.tgz)      tar xvzf     ../"$1" ;;
                 *.zip)      unzip        ../"$1" ;;
@@ -98,10 +105,12 @@ extract () {
                 *.7z)       7z x         ../"$1" ;;
                 *.xz)       unxz         ../"$1" ;;
                 *.exe)      cabextract   ../"$1" ;;
-                *)          echo "extract: '$1' - unknown archive method" ;;
+                *)          echo "extract: '$1' - unknown archive method" >&2;;
             esac
+            cd ..
         else
-            echo "$1 - file does not exist"
+            echo "$1 - file does not exist" >&2
+            return 1
         fi
     fi
 }