The attached patch goes a bit further in optimising (and making
redirection syntax consistent).
The idea is: one needs not echo:ing anything when the one and only need is
to truncate/touch a file. IOW, this:
echo -n >file
and this:
>file
will truncate file, the latter without emploing help from echo.
Cheers,
--
Cristian--- debian/postinst.in.orig 2011-05-29 13:23:53.000000000 +0200
+++ debian/postinst.in 2011-05-29 13:53:58.000000000 +0200
@@ -5,8 +5,8 @@
if [ ! -d $1 ]; then
mkdir -p $1
fi
- chown root:staff $1 2> /dev/null || true
- chmod 2775 $1 2> /dev/null || true
+ chown root:staff $1 2>/dev/null || true
+ chmod 2775 $1 2>/dev/null || true
}
install_from_default() {
@@ -68,19 +68,19 @@
ln -sf share/man /usr/local/man
if [ ! -f /var/log/wtmp ]; then
- echo -n>/var/log/wtmp
+ >/var/log/wtmp
fi
if [ ! -f /var/log/btmp ]; then
- echo -n>/var/log/btmp
+ >/var/log/btmp
fi
if [ ! -f /var/log/lastlog ]; then
- echo -n>/var/log/lastlog
+ >/var/log/lastlog
fi
chown root:utmp /var/log/wtmp /var/log/btmp /var/log/lastlog
chmod 664 /var/log/wtmp /var/log/lastlog
chmod 660 /var/log/btmp
if [ ! -f /var/run/utmp ]; then
- echo -n>/var/run/utmp
+ >/var/run/utmp
fi
chown root:utmp /var/run/utmp
chmod 664 /var/run/utmp
@@ -91,7 +91,7 @@
chown root:root /var/lib/dpkg
fi
if [ ! -f /var/lib/dpkg/status ]; then
- echo > /var/lib/dpkg/status
+ >/var/lib/dpkg/status
chmod 644 /var/lib/dpkg/status
chown root:root /var/lib/dpkg/status
fi
@@ -104,12 +104,12 @@
if [ "$1" = "configure" ] && [ "$2" != "" ]; then
if [ -f /etc/motd ]; then
- oldmd=`awk 'NR > 2' /etc/motd | md5sum | awk '{print $1}'`
- newmd=`awk 'NR > 2' /usr/share/base-files/motd | md5sum | awk '{print $1}'`
+ oldmd=`tail -n+3 /etc/motd | md5sum | cut -d' ' -f1`
+ newmd=`tail -n+3 /usr/share/base-files/motd | md5sum | cut -d' ' -f1`
if [ "$oldmd" != "$newmd" ]; then
if grep -q "$oldmd" /usr/share/base-files/motd.md5sums; then
- awk 'NR <= 2' /etc/motd > /etc/motd.new
- awk 'NR > 2' /usr/share/base-files/motd >> /etc/motd.new
+ head -n2 /etc/motd >/etc/motd.new
+ tail -n+3 /usr/share/base-files/motd >>/etc/motd.new
mv /etc/motd /etc/motd.old
mv /etc/motd.new /etc/motd
fi
