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Re: sed isn't working within a perl script

by aitap (Deacon)
on Oct 19, 2012 at 12:08 UTC ( #999915=note: print w/replies, xml ) Need Help??


in reply to sed isn't working within a perl script

system("sed -ie 's/\(.*\)/Number => \1/' test.txt");
See the difference:
say "sed -ie 's/\(.*\)/Number => \1/' test.txt"; say qq{sed -ie 's/\(.*\)/Number => \1/' test.txt}; say q{sed -ie 's/\(.*\)/Number => \1/' test.txt}; __END__ sed -ie 's/(.*)/Number => /' test.txt sed -ie 's/(.*)/Number => /' test.txt sed -ie 's/\(.*\)/Number => \1/' test.txt
Double quotes do interpolate your backslashes, and they are lost when you run the command. You need a non-interpolating quote operator instead to pass your string unchanded to the shell.

And I strongly advice you to use native Perl code instead, too.

Sorry if my advice was wrong.

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[shmem]: more garbage in, more garbage out that would be
[stevieb]: I found that win10 broke a C# library I was using for one project while enhancing tests for a Perl dist, which breaks other Perl dists, and I'm about to throw my hands up on berrybrew. win2k12 broke one thing, win10 breaks something...
[stevieb]: ...unrelated which requires replacing a lot of code and a whole lib. I'm about to go nix only ffs
[shmem]: stevieb: what you're doing sounds afwully complex. Too much for me this evening to provide brighter insight ;-)
[stevieb]: I don't even own a Windows computer. Both my girl and I have a laptop each with Linux. I'm supporting Windows in some of my projects and I can't even guage whether it's worth it or not.
[stevieb]: shmem It's something I desired to have years ago, which is why I took over berrybrew. Cross-platform build/test automation locally, or over the network Test::BrewBuild
[shmem]: sounds good.
[shmem]: but I'm crumbling smaller stones. remember...
[stevieb]: I'm working on it to fatten it up and make it more reliant so I can finalize my Raspberry Pi automated build system for that software :) It's all well and fun, until I try to make it work with Windows lol

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