Added getdst() documentation

Bashrc.wiki

@@ -82,3 +82,22 @@ The alias portion of my [[Weechat]] configuration is set in the .bashrc like so:
 }}}
 
 For more info, see the [[Weechat]] page.
+
+----
+
+==Get Dell Service Tag==
+
+I work with Dell machines a lot, and when dealing with hardware problems, it's nice to have the service tag handy. Lucky for me, the service tag is easily retrieveable using `dmidecode(1)`, so I made a function for it.
+
+{{{class="prettyprint"
+# Print Dell Service Tag
+getdst() {
+        if [[ "$1" = "-l" ]]; then
+                printf "http://www.dell.com/support/home/us/en/04/product-support/servicetag/%s\n" "$(getdst)"
+        else
+                sudo dmidecode -s system-serial-number
+        fi
+}
+}}}
+
+As an added bonus, the `-l` option will print the url for that product's support page.