0th commit

install

@@ -0,0 +1,25 @@
+#! /bin/sh
+
+dist="shredmaster.sh shredder.sh"
+
+if [ -z ${1} ]; then
+  echo "usage: ./install TARGET -- installs programs to ~/bin/TARGET/"
+  exit
+fi
+
+if [ ! -d ~/bin/ ]; then
+  mkdir ~/bin/
+  echo "creating ~/bin/"
+fi
+
+if [ ! -d ~/bin/${1}/ ]; then
+  mkdir ~/bin/${1}/
+  echo "creating ~/bin/${1}/"
+fi
+
+
+for i in ${dist}; do
+  cp ./${i} ~/bin/${1}
+  echo "copying ${i} to ~/bin/${1}/"
+  chmod +x ~/bin/${1}/${i}
+done

shredder.sh

@@ -0,0 +1,58 @@
+#!/bin/sh
+
+drives=$(ls /dev/sd[a-z] 2> /dev/null)
+
+safeDrives=""
+children=""
+activeChildren=""
+
+# safe drives are those which are not currently mounted
+
+for x in ${drives}; do
+  mounted=$(df -h | grep ${x} | awk '{print $1}')
+  if [ -z "${mounted}" ]; then
+    safeDrives="${safeDrives} ${x}"
+    n=$((n + 1))
+  fi
+done
+
+echo "Summary of currently mounted drives:"
+df -h
+echo ""
+echo "verify that the following drives are all OK to wipe:"
+echo "${safeDrives}"
+echo ""
+
+while [ "${isItSafe}" != "y" ]; do
+  echo "(y/n)"
+  read isItSafe
+  if [ "${isItSafe}" = "n" ]; then
+    exit
+  fi
+done
+
+echo "OK, shredding!"
+
+# fork each shred into the background and record its PID
+
+for drive in ${safeDrives}; do
+  shred -n 1 -z -v ${drive} & children="${children} $!"
+done
+
+# check if the shred PIDs have completed;
+# if so, everything is OK!
+
+while true; do
+  for child in ${children}; do
+    activeChildren="${activeChildren} $(ps T | grep $child | awk '{print $1}')"
+  done
+  if [ -z "${activeChildren}" ]; then
+    break
+  else
+    activeChildren=""
+  fi
+  sleep 5
+done
+
+echo "Everything is OK! Press Enter to finish."
+read weAreDone

shredmaster.sh

@@ -0,0 +1,3 @@
+#! /bin/sh
+
+urxvt -e su -c ~/bin/shredmaster/shredder.sh