diff --git a/bash/bash_functions b/bash/bash_functions
index aaea6af..c62da31 100644
--- a/bash/bash_functions
+++ b/bash/bash_functions
@@ -3,49 +3,77 @@
 ### ARCHIVE EXTRACTION
 # usage: ex <file>
 function ex {
- if [ -z "$1" ]; then
-    # display usage if no parameters given
-    echo "Usage: ex <path/file_name>.<zip|rar|bz2|gz|tar|tbz2|tgz|Z|7z|xz|ex|tar.bz2|tar.gz|tar.xz>"
-    echo "       extract <path/file_name_1.ext> [path/file_name_2.ext] [path/file_name_3.ext]"
- else
-    for n in "$@"
-    do
-      if [ -f "$n" ] ; then
-          case "${n%,}" in
-            *.cbt|*.tar.bz2|*.tar.gz|*.tar.xz|*.tbz2|*.tgz|*.txz|*.tar)
-                         tar xvf "$n"       ;;
-            *.lzma)      unlzma ./"$n"      ;;
-            *.bz2)       bunzip2 ./"$n"     ;;
-            *.cbr|*.rar)       unrar x -ad ./"$n" ;;
-            *.gz)        gunzip ./"$n"      ;;
-            *.cbz|*.epub|*.zip)       unzip ./"$n"       ;;
-            *.z)         uncompress ./"$n"  ;;
-            *.7z|*.arj|*.cab|*.cb7|*.chm|*.deb|*.dmg|*.iso|*.lzh|*.msi|*.pkg|*.rpm|*.udf|*.wim|*.xar)
-                         7z x ./"$n"        ;;
-            *.xz)        unxz ./"$n"        ;;
-            *.exe)       cabextract ./"$n"  ;;
-            *.cpio)      cpio -id < ./"$n"  ;;
-            *.cba|*.ace)      unace x ./"$n"      ;;
-            *)
-                         echo "ex: '$n' - unknown archive method"
-                         return 1
-                         ;;
-          esac
-      else
-          echo "'$n' - file does not exist"
-          return 1
-      fi
-    done
-fi
+	if [ -z "$1" ]; then
+		# display usage if no parameters given
+		echo "Usage: ex <path/file_name>.<zip|rar|bz2|gz|tar|tbz2|tgz|Z|7z|xz|ex|tar.bz2|tar.gz|tar.xz>"
+		echo "       extract <path/file_name_1.ext> [path/file_name_2.ext] [path/file_name_3.ext]"
+	else
+		for n in "$@"; do
+			if [ -f "$n" ]; then
+				case "${n%,}" in
+				*.cbt | *.tar.bz2 | *.tar.gz | *.tar.xz | *.tbz2 | *.tgz | *.txz | *.tar)
+					tar xvf "$n"
+					;;
+				*.lzma) unlzma ./"$n" ;;
+				*.bz2) bunzip2 ./"$n" ;;
+				*.cbr | *.rar) unrar x -ad ./"$n" ;;
+				*.gz) gunzip ./"$n" ;;
+				*.cbz | *.epub | *.zip) unzip ./"$n" ;;
+				*.z) uncompress ./"$n" ;;
+				*.7z | *.arj | *.cab | *.cb7 | *.chm | *.deb | *.dmg | *.iso | *.lzh | *.msi | *.pkg | *.rpm | *.udf | *.wim | *.xar)
+					7z x ./"$n"
+					;;
+				*.xz) unxz ./"$n" ;;
+				*.exe) cabextract ./"$n" ;;
+				*.cpio) cpio -id <./"$n" ;;
+				*.cba | *.ace) unace x ./"$n" ;;
+				*)
+					echo "ex: '$n' - unknown archive method"
+					return 1
+					;;
+				esac
+			else
+				echo "'$n' - file does not exist"
+				return 1
+			fi
+		done
+	fi
 }
 
 function ensure {
-  if [ -z "$1" ]; then
-    echo "Usage: ensure <command>"
-  else
-    if ! command -v $1 &> /dev/null
-    then
-        echo "$1 could not be found"
-    fi
-  fi
+	if [ -z "$1" ]; then
+		echo "Usage: ensure <command>"
+	else
+		if ! command -v $1 &>/dev/null; then
+			echo "$1 could not be found"
+		fi
+	fi
+}
+
+function htd {
+	echo "$((0x$1))"
+}
+
+function b2d {
+	echi "obase=10; ibase=2; $1" | bc
+}
+
+function h2d {
+	echi "obase=10; ibase=16; $1" | bc
+}
+
+function b2h {
+	echi "obase=16; ibase=2; $1" | bc
+}
+
+function h2b {
+	echi "obase=2; ibase=16; $1" | bc
+}
+
+function d2h {
+	echi "obase=16; ibase=10; $1" | bc
+}
+
+function d2b {
+	echi "obase=2; ibase=10; $1" | bc
 }