Bash - /etc/profile, excessive read only variable messages on login

On Ubuntu Linux, with Bash, I have /etc/profile set with read-only variables on login. Here's my /etc/profile ( my additions are toward the bottom of this file ): ``` # Check for interactive bash and that we haven't already been sourced. [ -z "$BASH_VERSION" -o -z "$PS1" -o -n "$BASH_COMPLETION" ] && return # Check for recent enough version of bash. bash=${BASH_VERSION%.*}; bmajor=${bash%.*}; bminor=${bash#*.} if [ $bmajor -gt 3 ] || [ $bmajor -eq 3 -a $bminor -ge 2 ]; then if shopt -q progcomp && [ -r /etc/bash_completion ]; then # Source completion code. . /etc/bash_completion fi fi unset bash bmajor bminor # /etc/profile: system-wide .profile file for the Bourne shell (sh(1)) # and Bourne compatible shells (bash(1), ksh(1), ash(1), ...). TZ='America/Kentucky/Louisville'; export TZ if [ -d /etc/profile.d ]; then for i in /etc/profile.d/*.sh; do if [ -r $i ]; then . $i fi done unset i fi if [ "$PS1" ]; then if [ "$BASH" ]; then PS1='\u@\h:\w\$ ' if [ -f /etc/bash.bashrc ]; then . /etc/bash.bashrc fi else if [ "`id -u`" -eq 0 ]; then PS1='# ' else PS1='$ ' fi fi fi **# My Additions** umask 077 shopt -s histappend shopt -s histverify export HISTFILE=~/.bash_history export HISTFILESIZE=1000000000 export HISTSIZE=5000 export HISTCONTROL="" export HISTIGNORE="" export HISTTIMEFORMAT="%F %T" readonly HISTFILE readonly HISTFILESIZE readonly HISTSIZE readonly HISTCONTROL readonly HISTIGNORE readonly HISTTIMEFORMAT readonly HISTCMD readonly HOME readonly PATH echo -e "Subject: Login from $(/usr/bin/whoami) on $(/bin/hostname) at $(/bin/date)\n\n$(/usr/bin/last -n 10 -F)\n" \ | /usr/sbin/ssmtp user@company.com export PROMPT_COMMAND="${PROMPT_COMMAND:+$PROMPT_COMMAND ; }"'echo "$$ $USER $(history 1)"|/usr/bin/logger -p user.alert -t shell.log' readonly PROMPT_COMMAND ``` And here is the bash_completion file that is located in /etc/profile.d: ``` # Check for interactive bash and that we haven't already been sourced. [ -z "$BASH_VERSION" -o -z "$PS1" -o -n "$BASH_COMPLETION" ] && return # Check for recent enough version of bash. bash=${BASH_VERSION%.*}; bmajor=${bash%.*}; bminor=${bash#*.} if [ $bmajor -gt 3 ] || [ $bmajor -eq 3 -a $bminor -ge 2 ]; then if shopt -q progcomp && [ -r /etc/bash_completion ]; then # Source completion code. . /etc/bash_completion fi fi unset bash bmajor bminor ``` My problem is that when I login I am "flooded" with lots of bash messages before the prompt is delivered: ``` .... -bash: PATH: readonly variable -bash: PATH: readonly variable -bash: PATH: readonly variable -bash: PATH: readonly variable -bash: HISTFILE: readonly variable -bash: HISTFILESIZE: readonly variable -bash: HISTSIZE: readonly variable -bash: HISTCONTROL: readonly variable -bash: HISTIGNORE: readonly variable -bash: HISTTIMEFORMAT: readonly variable -bash: PROMPT_COMMAND: readonly variable ``` My first question is why is there so many PATH: readonly variable messages 15+ with full output? My second question is how can I get stop these messages from displaying on login. Thanks in advance for any help!