diff --git a/groff/math.tmac b/groff/math.tmac
index 9f61d41..dad08be 100644
--- a/groff/math.tmac
+++ b/groff/math.tmac
@@ -22,6 +22,7 @@ define and '{ \[AN] }'
 define div '{ \[di] }'
 define grad '{ \[gr] }'
 define aleph '{ \[Ah] }'
+define forall '{ \[fa] }'
 define sen 'roman "sen"'
 define tan 'roman "tan"'
 define sec 'roman "sec"'
diff --git a/scripts/serve-php b/scripts/serve-php
new file mode 100755
index 0000000..568202c
--- /dev/null
+++ b/scripts/serve-php
@@ -0,0 +1,11 @@
+#!/bin/sh
+
+# Look for ifconfig
+[ -e "/sbin/ifconfig" ] && CMD="/sbin/ifconfig"
+[ -e "$(which ifconfig)" ] && CMD="ifconfig"
+[ -n "$CMD" ] || error "ifconfig not found"
+
+# Use ifconfig to get ip address
+ADDR="$($CMD | grep -o '192\.168\.[0-9]*\.[0-9]*' | head -n 1)"
+
+php -S "$ADDR":8000 -t .
diff --git a/scripts/serve-py b/scripts/serve-py
new file mode 100755
index 0000000..949b719
--- /dev/null
+++ b/scripts/serve-py
@@ -0,0 +1,11 @@
+#!/bin/sh
+
+# Look for ifconfig
+[ -e "/sbin/ifconfig" ] && CMD="/sbin/ifconfig"
+[ -e "$(which ifconfig)" ] && CMD="ifconfig"
+[ -n "$CMD" ] || error "ifconfig not found"
+
+# Use ifconfig to get ip address
+ADDR="$($CMD | grep -o '192\.168\.[0-9]*\.[0-9]*' | head -n 1)"
+
+python -m http.server -b "$ADDR"
diff --git a/scripts/share-local b/scripts/share-local
index c05444b..d439962 100755
--- a/scripts/share-local
+++ b/scripts/share-local
@@ -21,7 +21,7 @@ LOC="$1" ; [ -n "$LOC" ] || help
 [ -n "$CMD" ] || error "ifconfig not found"
 
 # Use ifconfig to get ip address
-ADDR="$($CMD | grep 'broadcast' | sed 's/\s*inet\s*//g;s/\s*netmask.*//g')"
+ADDR="$($CMD | grep -o '192\.168\.[0-9]*\.[0-9]*' | head -n 1)"
 
 # If location is directory, define DIR as location,
 # otherwise, define DIR as TEMP_DIR
diff --git a/shell/aliasrc b/shell/aliasrc
index 285723e..e007eb2 100644
--- a/shell/aliasrc
+++ b/shell/aliasrc
@@ -33,6 +33,7 @@ alias \
     df-short="df -h | grep -v '\s/dev.*$\|\s/run.*$\|\s/boot.*$'" \
     wacom-setup-menu="wacom-setup menu" \
     notes="note list" \
+    clip="xsel -ib" \
     def="dict" \
 
 # Launch args