diff --git a/dot.mkshrc b/dot.mkshrc
index 45ef2a2..6b18dd2 100644
--- a/dot.mkshrc
+++ b/dot.mkshrc
@@ -1,16 +1,11 @@
-: ${EDITOR:=/bin/ed} ${TERM:=vt100}
-[[ ${HOSTNAME:=$(ulimit -c 0; hostname -s 2>/dev/null)} = \
-    @(localhost|*([ 	])) ]] && HOSTNAME=$(ulimit -c 0; hostname 2>/dev/null)
-if [[ $(ulimit -c 0; id -u 2>/dev/null) -eq 0 ]]; then
-	PS1='# '
-else
-	PS1='$ '
-fi; PS1='$(integer rv=$?; ((rv)) && print -n $rv\|)${USER:=$(ulimit -c 0; \
-    id -un 2>/dev/null || print -n nobody)}@${HOSTNAME:=nil}:$(
-	local pfx=~ wd=${PWD:-$(builtin pwd)}; integer n=${COLUMNS:-80}/3
+: ${EDITOR:=/bin/ed} ${TERM:=vt100} ${HOSTNAME:=$(ulimit -c 0;hostname -s 2>&-)}
+[[ $HOSTNAME = @(localhost|*([	 ])) ]] && HOSTNAME=$(ulimit -c 0;hostname 2>&-)
+PS1='# '; [[ "$(ulimit -c 0; id -u 2>&-)" -eq 0 ]] || PS1='$ '
+PS1='$(integer e=$?; ((e)) && print $e\|)${USER:=$(ulimit -c 0; id -un 2>&- || \
+    print nobody)}@${HOSTNAME:=nil}:$(local pfx=~ wd=${PWD:-$(builtin pwd)}
+	integer n=${COLUMNS:-80}/3; let n='n < 7 ? 7 : n'
 	[[ ${wd#$pfx} = $wd || $pfx = ?(/) ]] || wd=\~${wd#$pfx}
-	pfx=; let n="n < 7 ? 7 : n"
-	while (( (${#pfx} + ${#wd}) > n )); do
+	pfx=; while (( (${#pfx} + ${#wd}) > n )); do
 		if [[ $wd = */* ]]; then
 			pfx=.../
 			wd=${wd#*/}
@@ -18,16 +13,15 @@ fi; PS1='$(integer rv=$?; ((rv)) && print -n $rv\|)${USER:=$(ulimit -c 0; \
 			pfx=...
 			wd=${wd#?????}
 		fi
-	done
-	print -nr -- "$pfx$wd") '$PS1
+	done; print -r -- "$pfx$wd") '$PS1
 export EDITOR HOSTNAME MKSH=$(whence -p mksh) PS1 TERM USER
 
 alias l='/bin/ls -F'
 alias la='l -a'
 alias ll='l -l'
 alias lo='la -lo'
-whence -p rot13 >/dev/null || alias rot13='tr [A-Za-z] [N-ZA-Mn-za-m]'
-whence -p hd >/dev/null || function hd {
+whence -p rot13 >&- || alias rot13='tr [A-Za-z] [N-ZA-Mn-za-m]'
+whence -p hd >&- || function hd {
 	hexdump -e '"%08.8_ax  " 8/1 "%02X " " - " 8/1 "%02X "' \
 	    -e '"  |" "%_p"' -e '"|\n"' "$@"
 }
@@ -43,4 +37,4 @@ function Lstripcom {
 
 # place customisations between this line and the “: RCSID” line below
 
-: $MirOS: src/bin/mksh/dot.mkshrc,v 1.12 2007/04/17 20:07:09 tg Rel $
+: $MirOS: src/bin/mksh/dot.mkshrc,v 1.13 2007/05/19 16:33:10 tg Exp $