Add a couple of useful aliases

shell/aliases.sh

@@ -35,3 +35,32 @@ function authme {
   ssh "$1" 'mkdir -p ~/.ssh && cat >> ~/.ssh/authorized_keys' \
     < ~/.ssh/id_dsa.pub
 }
+
+# Make and cd into directory
+#  - from: http://alias.sh/make-and-cd-directory
+function mcd() {
+  mkdir -p "$1" && cd "$1";
+}
+
+# Extract most common archives with single command.
+#  - from: http://alias.sh/extract-most-know-archives-one-command
+function extract () {
+    if [ -f $1 ] ; then
+      case $1 in
+        *.tar.bz2)   tar xjf $1     ;;
+        *.tar.gz)    tar xzf $1     ;;
+        *.bz2)       bunzip2 $1     ;;
+        *.rar)       unrar e $1     ;;
+        *.gz)        gunzip $1      ;;
+        *.tar)       tar xf $1      ;;
+        *.tbz2)      tar xjf $1     ;;
+        *.tgz)       tar xzf $1     ;;
+        *.zip)       unzip $1       ;;
+        *.Z)         uncompress $1  ;;
+        *.7z)        7z x $1        ;;
+        *)     echo "'$1' cannot be extracted via extract()" ;;
+         esac
+     else
+         echo "'$1' is not a valid file"
+     fi
+}