Updates

functions/extract

@@ -0,0 +1,22 @@
+extract() {
+  for archive in "$@"; do
+    if [ -f "$archive" ]; then
+      case "$archive" in
+        *.tar.bz2) tar xjf "$archive"    ;;
+        *.tar.gz)  tar xzf "$archive"    ;;
+        *.bz2)     bunzip2 "$archive"  ;;
+        *.rar)     unrar x "$archive"  ;;
+        *.gz)      gunzip "$archive"   ;;
+        *.tar)     tar xf "$archive"     ;;
+        *.tbz2)    tar xjf "$archive"    ;;
+        *.tgz)     tar xzf "$archive"    ;;
+        *.zip)     unzip "$archive"    ;;
+        *.Z)       uncompress "$archive" ;;
+        *.7z)      7z x "$archive"     ;;
+        *)         echo "'$archive' cannot be extracted via extract()" ;;
+      esac
+    else
+      echo "'$archive' is not a valid file"
+    fi
+  done
+}