Okay, I originally posted about this a few months ago: http://www.redhat.com/archives/rhl-devel-list/2006-January/msg00491.html A seemingly harmless corner case. Here's another one: <BobJensen> one of my guys ran a java install script as sudo and fubar'd the box <BobJensen> he was following these instructions http://fedorasolved.org/browser-solutions/java-i386/ Step 9, which looks like this: cat <<EOF > /etc/profile.d/java.sh export JAVA_HOME=/opt/jre1.5.0_06 export PATH=$JAVA_HOME/bin:$PATH EOF Results in this: # cat /etc/profile.d/java.sh export JAVA_HOME=/opt/jre1.5.0_06 export PATH=/bin:/usr/kerberos/sbin:/usr/kerberos/bin:/usr/lib64/ccache:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin Which is wrong. The fix is of course: # cat <<EOF > ~/java.sh > export JAVA_HOME=/opt/jre1.5.0_06 > export PATH=\$JAVA_HOME/bin:\$PATH > EOF # cat ~/java.sh export JAVA_HOME=/opt/jre1.5.0_06 export PATH=$JAVA_HOME/bin:$PATH So... bash 3.1 has definitely changed the way variable expansion is done, namely it expands things it didn't used to expand. Bug or feature? Either way, beware. (And there's the larger issue, being that those instructions suck, instead you should be using http://www.city-fan.org/tips/JpackageJava which is linked from http://www.fedoraproject.org/wiki/JavaFAQ and thus appears to be officially blessed. But that's not really an issue for -devel...)
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