Add source files

cooler_adduser.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+CMD=$(which useradd)
+
+for USER in "$@"; do
+  $CMD -m $USER
+  echo "$USER:$USER" | chpasswd
+done

recordbandwidth

@@ -0,0 +1,10 @@
+#!/bin/sh
+init="$(($(cat /sys/class/net/[ew]*/statistics/rx_bytes | paste -sd '+')))"
+
+printf "Recording bandwidth. Press enter to stop."
+
+read -r wait
+
+fin="$(($(cat /sys/class/net/[ew]*/statistics/rx_bytes | paste -sd '+')))"
+
+printf "%4sB of bandwidth used.\\n" $(numfmt --to=iec $(($fin-$init)))

replace_spaces

@@ -0,0 +1,2 @@
+#!/bin/bash
+for file in *; do mv "$file" `echo $file | tr ' ' '_'` ; done