Re^4: Redirecting Output to shell command from within perl

If you redirect output to an interactive command from within a program, I would expect different results to having done it from the command line; but then I wouldn't do it, because it doesn't seem useful, but try this:

open STDOUT, '| tee -i null | more';;
print "hello world! $_" for 1.. 1000; 
close STDOUT; 
exit;;
[download]

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.

"Science is about questioning the status quo. Questioning authority". The enemy of (IT) success is complexity.

In the absence of evidence, opinion is indistinguishable from prejudice. Suck that fhit

Comment on Re^4: Redirecting Output to shell command from within perl Download Code

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Re^5: Redirecting Output to shell command from within perl by LanX (Saint) on Feb 18, 2018 at 18:08 UTC
my version of Windows doesn't have tee installed `D:\Users\Rolf\pm>type call_less.pl open STDOUT, '\| tee -i null \| more';; print "hello world! $_\n" for 1.. 100; close STDOUT; exit; D:\Users\Rolf\pm>call_less.pl Der Befehl "tee" ist entweder falsch geschrieben oder konnte nicht gefunden werden. D:\Users\Rolf\pm>` [download] Please note that the effect is best seen with small amounts of lines, hence 100. > but then I wouldn't do it, Neither would I, but I'm not the OP! :) Cheers Rolf _{(addicted to the Perl Programming Language and ☆☆☆☆ :) Wikisyntax for the Monastery} UPDATE Using (and closing) a dedicated PIPE instead of STDOUT solves the issue for me on Win. see Re: Redirecting Output to shell command from within perl (Update "close PIPE")	[reply] [d/l]
Re^6: Redirecting Output to shell command from within perl by BrowserUk (Patriarch) on Feb 19, 2018 at 09:06 UTC
This only uses native commands: `open STDOUT, '\| more \| more';; print "hello world! $_" for 1.. 1000; exit;;` [download] With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday' Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". The enemy of (IT) success is complexity. In the absence of evidence, opinion is indistinguishable from prejudice. Suck that fhit	[reply] [d/l]
Re^7: Redirecting Output to shell command from within perl by LanX (Saint) on Feb 19, 2018 at 10:22 UTC
Doesn't work for me. What's happening is that I need to always type `RET` before being able to send a command to "more". Looks like the "readline" of `%CMD%` is also active and interfering. Cheers Rolf _{(addicted to the Perl Programming Language and ☆☆☆☆ :) Wikisyntax for the Monastery}	[reply] [d/l] [select]

UPDATE