added some usefull aliases

.bash/aliases

@@ -1 +1,25 @@
-alias lsa='ls -hal --color=tty'
+# You may uncomment the following lines if you want `ls' to be colorized:
+export LS_OPTIONS='--color=always'
+eval "`dircolors`"
+alias ls='ls $LS_OPTIONS -lsh'
+alias la='ls $LS_OPTIONS -lsah'
+alias lr='ls -R | grep ":$" | sed -e '\''s/:$//'\'' -e
+'\''s/[^-][^\/]*\//--/g'\'' -e '\''s/^/   /'\'' -e '\''s/-/|/'\'''
+
+# Some more alias to avoid making mistakes:
+alias rm='rm -i'
+alias cp='cp -i'
+alias mv='mv -i'
+
+## Colorize the grep command output for ease of use (good for log files)##
+alias grep='grep --color=auto'
+alias egrep='egrep --color=auto'
+alias fgrep='fgrep --color=auto'
+# alias grep='grep --color=tty -d skip'
+alias df='df -h'                          # human-readable sizes
+alias free='free -m'                      # show sizes in MB
+
+alias mysqlr='mysql -u root -p'
+
+alias df="df -kTh"
+