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The time now is Mon 15 Oct 2018, 20:01
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 Forum index » Off-Topic Area » Programming
Unpredictable results from standard utilities
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nosystemdthanks

Joined: 03 May 2018
Posts: 333

PostPosted: Wed 13 Jun 2018, 02:54    Post subject:  

does that help?

its alright that we arent totally clear on what you want to accomplish. a bias on forums is "tell us what you want precisely so we know how to help."

when i say its a bias, i mean if you say "these results are unpredictable," the fix is to either tell you what we know, or tell you how to make it more predictable. i cant guess if this solves your problem.

thats ok though. im sort of curious, but probably not to the point where i would try the program youre talking about, learn how it works, get familiar enough to solve this.

my motivation here is that im more and more dedicated to helping as many non-systemd users as possible. that doesnt mean i can help you, but if it did, fantastic.

i did help a couple people on the forum today, i solved a problem i was having too, partly-- most days wont be as productive as that.

the environment youre working in looks a lot simpler than it is-- youll be happy to know that most of the time, it is not as intriguing as this. i spent ten years learning bash and several people here can still do circles around me. https://ptpb.pw/UFuV https://kek.gg/i/4SqJ35.png

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disciple

Joined: 20 May 2006
Posts: 6847
Location: Auckland, New Zealand

PostPosted: Sat 16 Jun 2018, 06:06    Post subject:  

I wasn't trying to accomplish anything much in particular - this behaviour seemed buggy on the face of it, but I found it hard to believe that there could be such significant bugs in coreutils, so I wanted to understand what was going on.
We've established that it is all "not a bug", and a reasonable understanding of what is actually happening, so I'd call that "solved". Thanks.

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nosystemdthanks

Joined: 03 May 2018
Posts: 333

PostPosted: Sat 16 Jun 2018, 23:40    Post subject:  

oh, thats no problem.

even if its buggy, it probably has more to do with the display mode / vt emulation than the utils themselves.

the utilities write very specific things to files-- including the screen. its the emulation mode of the term, not the utilities that really determines when a line clears or when a newline counts. this is probably about edge cases too, i dont come across this issue much and there are lots of ways to fix the output if it does that.

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