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# Don't let anyone write(1) to my terminal
command -p mesg n
# Turn off flow control and control character echo
command -p stty -ixon -ctlecho 2>/dev/null
# Keep around 4K lines of history in memory
HISTSIZE=$((1 << 12))
# If HOSTNAME isn't set by this shell, we'll do it
[ -n "$HOSTNAME" ] || HOSTNAME=$(uname -n)
# Don't warn me about new mail
unset -v MAILCHECK
# Some systems' /etc/profile setups export PS1, which really fouls things up
# when switching between non-login shells; let's put things right by unsetting
# it to break the export and then just setting them as simple variables
unset PS1 PS2 PS3 PS4
PS1='$ ' PS2='> ' PS3='? ' PS4='+ '
# Load all the POSIX-compatible functions from ~/.shrc.d; more advanced shells
# like bash will have their own functions
for sh in "$HOME"/.shrc.d/*.sh ; do
[ -e "$sh" ] && . "$sh"
done
unset -v sh
# If ENV_EXT was set and exists, source that too
[ -e "$ENV_EXT" ] && . "$ENV_EXT"
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