09-04-2009
You are right, this thread isn't about the standard and you indeed provided an interesting use case where quoting the curly braces has an effect.
It does because quotes are themselves quoted and thus propagated to the exec command.
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LEARN ABOUT DEBIAN
aa-exec
AA-EXEC(8) AppArmor AA-EXEC(8)
NAME
aa-exec - confine a program with the specified AppArmor profile
SYNOPSIS
aa-exec [options] [--] [<command> ...]
DESCRIPTION
aa-exec is used to launch a program confined by the specified profile and or namespace. If both a profile and namespace are specified
command will be confined by profile in the new policy namespace. If only a namespace is specified, the profile name of the current
confinement will be used. If neither a profile or namespace is specified command will be run using standard profile attachment (ie. as if
run without the aa-exec command).
If the arguments are to be pasted to the <command> being invoked by aa-exec then -- should be used to separate aa-exec arguments from the
command.
aa-exec -p profile1 -- ls -l
OPTIONS aa-exec accepts the following arguments:
-p PROFILE, --profile=PROFILE
confine <command> with PROFILE. If the PROFILE is not specified use the current profile name (likely unconfined).
-n NAMESPACE, --namespace=NAMESPACE
use profiles in NAMESPACE. This will result in confinement transitioning to using the new profile namespace.
-f FILE, --file=FILE
a file or directory containing profiles to load before confining the program.
-i, --immediate
transition to PROFILE before doing executing <command>. This subjects the running of <command> to the exec transition rules of the
current profile.
-v, --verbose
show commands being performed
-d, --debug
show commands and error codes
-- Signal the end of options and disables further option processing. Any arguments after the -- are treated as arguments of the command.
This is useful when passing arguments to the <command> being invoked by aa-exec.
BUGS
If you find any bugs, please report them at <http://https://bugs.launchpad.net/apparmor/+filebug>.
SEE ALSO
aa-stack(8), aa-namespace(8), apparmor(7), apparmor.d(5), aa_change_profile(3), aa_change_onexec(3) and <http://wiki.apparmor.net>.
AppArmor 2.7.103 2012-06-28 AA-EXEC(8)