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On 06/20/2012 07:20 AM, Tom Rodman wrote: > $ echo $SHELL > /bin/bash > $ bash -c 'echo SHELL: $SHELL' # does this prove SHELL is exported? > SHELL: /bin/bash No. And in fact, bash does not export SHELL by default, but defaults to defining SHELL as a shell-local variable. You have to explicitly export it yourself if you want child processes to see it. $ env -u SHELL bash -c 'echo $SHELL' /bin/bash $ env -u SHELL bash -c 'env | grep SHELL' $ env -u SHELL bash -c 'export SHELL; env | grep SHELL' SHELL=/bin/bash $ -- Eric Blake eblake@redhat.com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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