Le 31/03/2011 01:53, Cyrille Lefevre a écrit :
Le 18/03/2011 19:45, David Sastre a écrit :
Version 4.0-6 of base-files has been uploaded.
Base-files is a set of system configuration and setup files.
Hi,
PS1 *must not* be exported.
historically, it is not exported to know if it is a shell is interactive
or not since only interactive shells set it.
i.e., the following both solutions are equivalent.
case $- in *i*) interactive ;; esac
[ -n $PS1 ] && interactive
if PS1 is exported, it is always set for subshells and this may cause
trouble in some script.
also, from man bash :
An interactive shell is one started without non-option arguments and
without the -c option whose standard input and error are both connected
to terminals (as determined by isatty(3)), or one started with the -i
option. PS1 is set and $- includes i if bash is interactive, allowing
a shell script or a startup file to test this state.
Regards,
Cyrille Lefevre
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