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config() {
NEW="$1"
OLD="$(dirname $NEW)/$(basename $NEW .new)"
# If there's no config file by that name, mv it over:
if [ ! -r $OLD ]; then
mv $NEW $OLD
elif [ "$(cat $OLD | md5sum)" = "$(cat $NEW | md5sum)" ]; then
# toss the redundant copy
rm $NEW
fi
# Otherwise, we leave the .new copy for the admin to consider...
}
preserve_perms() {
NEW="$1"
OLD="$(dirname $NEW)/$(basename $NEW .new)"
if [ -e $OLD ]; then
cp -a $OLD ${NEW}.incoming
cat $NEW > ${NEW}.incoming
mv ${NEW}.incoming $NEW
fi
config $NEW
}
preserve_perms etc/profile.d/ksh93-functions.sh.new
# Backup the old copy if we find one, move the new one in place
if [ -f bin/ksh ]; then
mv bin/ksh bin/ksh.old
fi
mv bin/ksh.new bin/ksh
if [ -f bin/ksh.old ]; then
rm -f bin/ksh.old
fi
# Add entries to /etc/shells if we need them
if [ ! -r etc/shells ] ; then
touch etc/shells
chmod 644 etc/shells
fi
if ! grep -q "/bin/ksh" etc/shells ; then
echo "/bin/ksh" >> etc/shells
fi
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