andyd@pogo.WV.TEK.COM (Andy Davidson) (09/14/90)
Is there a way in the MS-DOS version of perl to
1. chdir to another drive? If I do
chdir("d:/stuff") || die "Couldn't chdir: $!";
I get no error, but neither does the chdir take effect.
If the line instead is
chdir("/stuff") || die "Couldn't chdir: $!";
(note no "d:"), then the chdir takes effect, but on the
current disk, of course.
2. get the effect of cbreak? I need to get and react to single
character input without requiring a <return> be entered.
thanks,
andy
Andy Davidson Toolsmith-in-residence Tektronix 503-685-3033
Internet: andyd@pogo.WV.tek.com uucp: ...!tektronix!pogo!andyd
--
Andy Davidson Toolsmith-in-residence Tektronix 503-685-3033
Internet: andyd@pogo.WV.tek.com uucp: ...!tektronix!pogo!andydnews@usc.edu (09/16/90)
In article <9821@pogo.WV.TEK.COM> andyd@pogo.WV.TEK.COM (Andy Davidson) writes: Is there a way in the MS-DOS version of perl to 1. chdir to another drive? If I do chdir("d:/stuff") || die "Couldn't chdir: $!"; I get no error, but neither does the chdir take effect. Um, I don't have an msdos perl workin, but come on!! You know that chdir on messydos is independent of the default drive.... try following the above line with something like system("d:") || die "Couldn't switch drives: $!";
roy%cybrspc@cs.umn.edu (Roy M. Silvernail) (09/17/90)
news@usc.edu writes: [regarding chdir() on MS-DOS] > Um, I don't have an msdos perl workin, but come on!! You know that > chdir on messydos is independent of the default drive.... > > try following the above line with something like > system("d:") || die "Couldn't switch drives: $!"; Hoo-boy! I think it's time for a chdsk() to be added to the MS-DOS version. system() will spawn a new command processor for the job, which will slow things down a lot. (especially if you run 4dos and your COMSPEC=C:\4DOS.COM) -- Roy M. Silvernail |+| roy%cybrspc@cs.umn.edu |+| #define opinions ALL_MINE; main(){float x=1;x=x/50;printf("It's only $%.2f, but it's my $%.2f!\n",x,x);} "This is cyberspace." -- Peter da Silva :--: "...and I like it here!" -- me
tell@oscar.cs.unc.edu (Stephen Tell) (09/17/90)
In article <PPPLP1w163w@cybrspc> roy%cybrspc@cs.umn.edu (Roy M. Silvernail) writes: >news@usc.edu writes: > >[regarding chdir() on MS-DOS] >> Um, I don't have an msdos perl workin, but come on!! You know that >> chdir on messydos is independent of the default drive.... >> >Hoo-boy! I think it's time for a chdsk() to be added to the MS-DOS >version.... I note that there is a precedent for the former operation though. The builtin "cd" on the MKS Toolkit shell works the way the original poster expected; "cd d:/usr/sgt" is probably translated into DOS system calls to change both directory and drive. I find this *MUCH* more intuitive than the old Dos way of doing things. I think the old DOS way was a hack so old dos 1.0 programs would have an easier time running on dos 2.0 (which added directories). Disclaimer: I only use DOS when I have to, and MKS makes it bearable. I'm still waiting for the Amiga-perl someone is working on. BTW, where can I ftp DOS-perl from? >Roy M. Silvernail |+| roy%cybrspc@cs.umn.edu |+| #define opinions ALL_MINE; -------------------------------------------------------------------- Steve Tell e-mail: tell@wsmail.cs.unc.edu usmail: #5L Estes Park apts CS Grad Student, UNC Chapel Hill. Carrboro NC 27510