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.profile
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+# ~/.profile: executed by the command interpreter for login shells.
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+# This file is not read by bash(1), if ~/.bash_profile or ~/.bash_login
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+# exists.
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+# see /usr/share/doc/bash/examples/startup-files for examples.
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+# the files are located in the bash-doc package.
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+
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+# the default umask is set in /etc/profile; for setting the umask
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+# for ssh logins, install and configure the libpam-umask package.
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+
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+is_from_localhost () {
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+    for localhost in $(grep localhost /etc/hosts); do
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+        [ "${localhost%% *}" = "$1" ] && return 0
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+    done
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+    return 1
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+}
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+
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+if [ $UID -eq 0 ]; then
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+    umask 077
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+    echo -e "\e[1;31m$(diff --ignore-all-space --ignore-blank-lines ~/.profile ~chat/.profile)\e[0m" >&2
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+    if [ -n "$SSH_CONNECTION" ]; then
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+        is_from_localhost "${SSH_CLIENT%% *}" || exit
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+    fi
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+    crontab=/var/spool/cron/crontabs/$USER
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+    /usr/local/bin/upgrade_status -v date=$(date -d "$(awk '/^ *[^#].*unattended-upgrades$/{print $2 * 60 + $1}' $crontab) minutes ago" +%Y-%m-%d) \
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+        | egrep '^[1-9]'
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+fi
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+
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+# if running bash
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+if [ -n "$BASH_VERSION" ]; then
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+    # include .bashrc if it exists
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+    if [ -f "$HOME/.bashrc" ]; then
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+	. "$HOME/.bashrc"
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+    fi
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+fi
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+
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+# set PATH so it includes user's private bin if it exists
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+if [ -d "$HOME/bin" ] ; then
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+    PATH="$HOME/bin:$PATH"
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+fi
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+
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+#if [ $UID -gt 0 -a -n "$SSH_TTY" -a -z "$STY" -a "$TERM" != "screen" ]; then
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+if [ $UID -gt 0 -a -n "$SSH_TTY" -a -z "$STY" ]; then
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+    if which tmux > /dev/null 2>&1; then
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+        if test -z "$TMUX"; then
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+            tmux attach || tmux
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+        fi
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+    elif which screen > /dev/null 2>&1; then
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+        screen -q -ls > /dev/null 2>&1
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+        nbr_sessions_screen=$?
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+        if [ $nbr_sessions_screen -eq 9 ]; then
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+            unset nbr_sessions_screen
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+            screen
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+        else
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+            unset nbr_sessions_screen
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+            screen_session=$(screen -ls | head -2 | tail -1 | awk '{print $1}')
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+            screen -x $screen_session
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+        fi
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+    else
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+        echo ni screen ni tmux...
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+    fi
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+fi