On Thu, Mar 31, 2011 at 12:24:33PM +0100, Jon TURNEY wrote: > On 31/03/2011 01:03, Cyrille Lefevre wrote: > > 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. > > What the man page doesn't tell you is that bash actually unsets PS1 if the > shell isn't interactive, so for bash at least, exporting PS1 can't cause a > problem.
Hello, Both improvements have been checked in for a future 4.0-7 version. I'm waiting for dash to be updated to include also a simpler PRINTER setting as you proposed. -- Huella de clave primaria: 0FDA C36F F110 54F4 D42B D0EB 617D 396C 448B 31EB
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