fix(cmd/sendsms): randomize-csv now keeps header and adds back extension

cmd/sendsms/randomize-csv

@@ -0,0 +1,37 @@
+#!/bin/sh
+set -e
+set -u
+
+g_csv="${1:-}"
+g_dir=$(dirname "${g_csv}")
+g_rnd="${g_csv}"
+g_rnd=$(basename "${g_rnd}" ".csv")
+g_rnd="${g_dir}/${g_rnd}.rnd.csv"
+
+fn_help() {
+   echo "USAGE"
+   echo "   # sort -R ./list.csv > ./list.rnd.csv"
+   echo "   ./randomize-csv ./list.csv"
+}
+
+main() {
+   if test -z "${g_csv}" || ! test -s "${g_csv}"; then
+      >&2 fn_help
+      return 1
+   fi
+
+   if test -s "${g_rnd}"; then
+      {
+         echo "${g_rnd} already exists"
+      } >&2
+      return 1
+   fi
+
+   head -n 1 "${g_csv}" > "${g_rnd}"
+   tail -n +2 "${g_csv}" | sort -R >> "${g_rnd}"
+   {
+      echo "wrote ${g_rnd}"
+   } >&2
+}
+
+main

cmd/sendsms/randomize.sh

@@ -1,39 +0,0 @@
-#!/bin/sh
-set -e
-set -u
-
-g_csv="${1:-}"
-
-fn_help() {
-   echo "USAGE"
-   echo "   # sort -R ./list.csv > ./list.csv.bak"
-   echo "   ./randomize.sh ./list.csv"
-}
-
-fn_tip() {
-   echo "IMPORTANT"
-   echo "    Now go move the header back to the first row"
-}
-
-main() {
-   if test -z "${g_csv}" || ! test -s "${g_csv}"; then
-      >&2 fn_help
-      return 1
-   fi
-
-   if test -s "${g_csv}.randomized"; then
-      {
-         echo "${g_csv}.randomized already exists"
-         fn_tip
-      } >&2
-      return 1
-   fi
-
-   sort -R "${g_csv}" > "${g_csv}.randomized"
-   {
-      echo "wrote ${g_csv}.randomized"
-      fn_tip
-   } >&2
-}
-
-main