diff --git a/.bash_aliases b/.bash_aliases
index 9e1e909..04af83e 100644
--- a/.bash_aliases
+++ b/.bash_aliases
@@ -1,6 +1,3 @@
-# aliase auch mit sudo
-# https://askubuntu.com/questions/22037/aliases-not-available-when-using-sudo
-alias sudo='sudo '
 # tmux
 alias tmuxa="tmux a -t "
 alias tmuxn="tmux new -s "
@@ -17,8 +14,6 @@ alias tf="tail -f "
 alias scs="systemctl status "
 alias scr="systemctl restart "
 alias scw="watch systemctl status "
-alias scat="sudo cat "
-alias ssh_rk="ssh-keygen -f /home/mg/.ssh/known_hosts -R "
 # typo
 alias mkae="make "
 alias amke="make "