Ryan Underwood <[EMAIL PROTECTED]> writes: > On Mon, Sep 06, 2004 at 03:25:39PM +0100, Roger Leigh wrote: >> Package: dosemu >> Version: 1.2.1-3 >> Severity: normal >> >> If I want to import environment variables from the Linux environment >> into the dosemu session using "unix -s varname", only variables without >> an underscore are imported. > > I did the exactly same thing as you, and here are my results: [snip working results]
Hmm, that's interesting! > But, these environment vars are not set in the parent shell, because a > new shell is spawned to run the .bat file and then destroyed when it > exits. That's not a problem--they weren't even set within the current shell. > The only other thing I can think of is that empty environment variables > are automatically reaped under DOS. So if you try to import a variable > that exists on the unix side but is empty, nothing will appear to > happen, because it has the same effect as SET FOO= on the DOS side. That's what I see, but if the variable /is/ set, the behaviour of "unix -s" is different whether it's run from (autoexec.bat or a command specified on the dosemu command line) compared with being run from the command prompt by hand (which works perfectly). >> I've also found problems if DOSCOMMAND has arguments to the command e.g. >> "command arg1 arg2". The args seem to be dropped, though I need to >> investigate this one further. This also applies to running "dosemu >> command arg1 arg2" with the appropriate unix command in autoexec.bat. > > Hmm, this definitely doesn't happen here (or else it would be impossible > to invoke the permanent shell option). However, I am using a FreeCOM > from here: > http://freedos.sourceforge.net/freecom/FreeCOM.html#-download > instead of the classic dosemu comcom, which you probably use because it > is the default command interpreter in dosemu 1.2. Yes--it's the stock dosemu and dosemu-freedos from unstable. I can't say I like it (it says "out of memory" when it can't find a command!). > Just take the > command.com from the distribution and replace the command.com link in > /usr/lib/freedos with it. I tried this. I renamed command.com to command.swp and vspawn.com to command.com. It won't work unless command.swp is read-write! When I do start it, either from config.sys or from the comcom.com shell, "unix -s" fails to work (and I lose the shell history), so something's not quite right there! Update: not using vspawn, and making command.com writable lets it run normally and "unix -s" does then work as expected, but it's still not quite right: $ export declare -x BAR="bar" declare -x BAZ="baz" declare -x CSL_ACC="3453" declare -x CSL_COMMAND="dsfs dfdfdfdfdfdfd /dfdfd" declare -x CSL_CSBIG="dskf dskf sdf dsf dsfdf dsf dsf" declare -x CSL_CSNRM="dskf dskf sdf dsf dsfdf dsf dsf" declare -x FOO="foo" declare -x FOO_BAR="foobar" declare -x FOO_BAZ="foobaz" $ cat test2.bat UNIX -S FOO UNIX -S FOO UNIX -S BAR UNIX -S BAZ UNIX -S FOO_BAR UNIX -S FOO_BAZ UNIX -S CSL_ACC UNIX -S CSL_CSNRM UNIX -S CSL_CSBIG UNIX -S CSL_COMMAND SET PAUSE $ dosemu C:\>d:\test2 D:\>UNIX -S FOO D:\>UNIX -S FOO D:\>UNIX -S BAR D:\>UNIX -S BAZ D:\>UNIX -S FOO_BAR D:\>UNIX -S FOO_BAZ D:\>UNIX -S CSL_ACC D:\>UNIX -S CSL_CSNRM D:\>UNIX -S CSL_CSBIG D:\>UNIX -S CSL_COMMAND D:\>SET PATH=c:\bin;c:\gnu;c:\dosemu COMSPEC=C:\FREECOM\COMMAND.COM HELPPATH=c:\help PROMPT=$P$G DOSTMP=/tmp/dosemu.vapgkb/tmp DOSDRIVE_D=/home/roger DOSEMU_VERSION=1.2.1.0 FOO=foo BAR=bar BAZ=baz FOO_BAR=foobar FOO_BAZ=foobaz CSL_ACC=3453 CSL_CSNRM=dskf dskf sdf dsf dsfdf dsf dsf CSL_CSBIG=dskf dskf sdf dsf dsfdf dsf dsf CSL_COMMAND=dsfs dfdfdfdfdfdfd /dfdfd All of the env vars are there. Now: $ dosemu d:\\test2 C:\>SET [same commands as before] PATH=c:\bin;c:\gnu;c:\dosemu COMSPEC=C:\FREECOM\COMMAND.COM HELPPATH=c:\help PROMPT=$P$G DOSTMP=/tmp/dosemu.jsddnx/tmp DOSDRIVE_D=/home/roger DOSEMU_VERSION=1.2.1.0 FOO=foo BAR=bar BAZ=baz FOO_BAR=foobar FOO_BAZ=foobaz CSL_ACC=3453 Notice that the CSL_CSNRM, CSL_CSBIG and CSL_COMMAND vars are now missing. test2.bat was invoked by this line in autoexec.bat: unix -e > so eventually it will be necessary to add FreeCOM to the dosemu-freedos > package. That sounds great. Regards, Roger -- Roger Leigh Printing on GNU/Linux? http://gimp-print.sourceforge.net/ GPG Public Key: 0x25BFB848. Please sign and encrypt your mail.
