fs: utility to change font in running urxvt

fs

@@ -0,0 +1,19 @@
+# Change the font size in a running urxvt.
+# Only argument should be the font size in pixels.
+# e.g. $0 13 (without any argument size is set to 13)
+
+BASE="Envy Code R"
+SIZE=13
+
+# Take size from first argument if any.
+[ $1 ] && SIZE=$1
+
+FONT="xft:$BASE:antialias=false"
+BFONT="${FONT}:bold"
+BIFONT="${BFONT}:italic"
+IFONT="${FONT}:italic"
+
+printf '\033]710;%s%d\007' "${FONT}:pixelsize=" $SIZE
+printf '\033]711;%s%d\007' "${BFONT}:pixelsize=" $SIZE
+printf '\033]712;%s%d\007' "${BIFONT}:pixelsize=" $SIZE
+printf '\033]713;%s%d\007' "${IFONT}:pixelsize=" $SIZE