Scripts: colsum sums the specified column

.scripts/colsum

@@ -0,0 +1,20 @@
+#!/bin/sh
+
+COLUMN="1"
+FORMAT="TOTAL: %s\n"
+
+if [ "$1" = "-h" ]; then
+    cat<<EOF
+Usage: ${0##*/} [COLUMN] [FORMAT]
+
+Sum COLUMN (default to column $COLUMN) and output result with format FORMAT
+(default to $FORMAT).
+
+EOF
+    exit
+fi
+
+[ $# -ge 1 ] && COLUMN="$1" && shift
+[ $# -ge 1 ] && FORMAT="$1"
+
+awk -v format="$FORMAT" '{total += $'$COLUMN'; print} END {printf format, total}'