added script to backup file

debian/debian-create-backup-of-file.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+cat <<'EOF' >> /usr/local/bin/cpb
+#!/bin/bash
+
+if [ $# -eq 1 ]
+then
+ cp -pvi "$1" "${1}.bak"
+else
+ echo "Info:  $0 copies to a backup file"
+ echo "Usage: $0 <file to be backed up with .bak extension>"
+fi
+EOF
+
+chmod +x /usr/local/bin/cpb