Filter output / print one record per event or time period












0















I've got a custom HID device which prints out exact coordinates of touched points at real time.



It is very sensitive & currently printing out the coordinate that's being touched on multiple numbers. But I need them to be printed one event at a time.



The crucial point is that I need the events to be printed without gap.(none of the events could be omitted to be printed) and of course no delay is allowed.



Current Form:



A1
A1
A1
A2
A2
C3
C3
C3
C3
C3
D1
D1


What I expect is:



A1
A2
C3
D1









share|improve this question

























  • Just use uniq file.txt?

    – Sparhawk
    Jan 16 at 6:43











  • Please check that Olorin's edit is correct. Of course it is better to show the output in code blocks, but the edit also changed the output from A1 A1 A1 A2... in one long line to A1 A1 A1 A2 ... in separate lines.

    – Bodo
    Jan 16 at 9:14











  • @Bodo if you inspect the source of the original revision, it was one per line originally, but Markdown doesn't show it that way.

    – Olorin
    Jan 17 at 1:43











  • If uniq is working in a form of printing one from each type, then it won't work for my case. I need to just get the repetitive distinct touches as well. For example two different A1s can come one after. Or I need an exception handling mechanism in order not to send some wrong characters inside. So any ideas?

    – ybaylav
    Jan 18 at 9:11
















0















I've got a custom HID device which prints out exact coordinates of touched points at real time.



It is very sensitive & currently printing out the coordinate that's being touched on multiple numbers. But I need them to be printed one event at a time.



The crucial point is that I need the events to be printed without gap.(none of the events could be omitted to be printed) and of course no delay is allowed.



Current Form:



A1
A1
A1
A2
A2
C3
C3
C3
C3
C3
D1
D1


What I expect is:



A1
A2
C3
D1









share|improve this question

























  • Just use uniq file.txt?

    – Sparhawk
    Jan 16 at 6:43











  • Please check that Olorin's edit is correct. Of course it is better to show the output in code blocks, but the edit also changed the output from A1 A1 A1 A2... in one long line to A1 A1 A1 A2 ... in separate lines.

    – Bodo
    Jan 16 at 9:14











  • @Bodo if you inspect the source of the original revision, it was one per line originally, but Markdown doesn't show it that way.

    – Olorin
    Jan 17 at 1:43











  • If uniq is working in a form of printing one from each type, then it won't work for my case. I need to just get the repetitive distinct touches as well. For example two different A1s can come one after. Or I need an exception handling mechanism in order not to send some wrong characters inside. So any ideas?

    – ybaylav
    Jan 18 at 9:11














0












0








0








I've got a custom HID device which prints out exact coordinates of touched points at real time.



It is very sensitive & currently printing out the coordinate that's being touched on multiple numbers. But I need them to be printed one event at a time.



The crucial point is that I need the events to be printed without gap.(none of the events could be omitted to be printed) and of course no delay is allowed.



Current Form:



A1
A1
A1
A2
A2
C3
C3
C3
C3
C3
D1
D1


What I expect is:



A1
A2
C3
D1









share|improve this question
















I've got a custom HID device which prints out exact coordinates of touched points at real time.



It is very sensitive & currently printing out the coordinate that's being touched on multiple numbers. But I need them to be printed one event at a time.



The crucial point is that I need the events to be printed without gap.(none of the events could be omitted to be printed) and of course no delay is allowed.



Current Form:



A1
A1
A1
A2
A2
C3
C3
C3
C3
C3
D1
D1


What I expect is:



A1
A2
C3
D1






python printf filter real-time events






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Jan 16 at 6:34









Olorin

2,034415




2,034415










asked Jan 16 at 5:26









ybaylavybaylav

6119




6119













  • Just use uniq file.txt?

    – Sparhawk
    Jan 16 at 6:43











  • Please check that Olorin's edit is correct. Of course it is better to show the output in code blocks, but the edit also changed the output from A1 A1 A1 A2... in one long line to A1 A1 A1 A2 ... in separate lines.

    – Bodo
    Jan 16 at 9:14











  • @Bodo if you inspect the source of the original revision, it was one per line originally, but Markdown doesn't show it that way.

    – Olorin
    Jan 17 at 1:43











  • If uniq is working in a form of printing one from each type, then it won't work for my case. I need to just get the repetitive distinct touches as well. For example two different A1s can come one after. Or I need an exception handling mechanism in order not to send some wrong characters inside. So any ideas?

    – ybaylav
    Jan 18 at 9:11



















  • Just use uniq file.txt?

    – Sparhawk
    Jan 16 at 6:43











  • Please check that Olorin's edit is correct. Of course it is better to show the output in code blocks, but the edit also changed the output from A1 A1 A1 A2... in one long line to A1 A1 A1 A2 ... in separate lines.

    – Bodo
    Jan 16 at 9:14











  • @Bodo if you inspect the source of the original revision, it was one per line originally, but Markdown doesn't show it that way.

    – Olorin
    Jan 17 at 1:43











  • If uniq is working in a form of printing one from each type, then it won't work for my case. I need to just get the repetitive distinct touches as well. For example two different A1s can come one after. Or I need an exception handling mechanism in order not to send some wrong characters inside. So any ideas?

    – ybaylav
    Jan 18 at 9:11

















Just use uniq file.txt?

– Sparhawk
Jan 16 at 6:43





Just use uniq file.txt?

– Sparhawk
Jan 16 at 6:43













Please check that Olorin's edit is correct. Of course it is better to show the output in code blocks, but the edit also changed the output from A1 A1 A1 A2... in one long line to A1 A1 A1 A2 ... in separate lines.

– Bodo
Jan 16 at 9:14





Please check that Olorin's edit is correct. Of course it is better to show the output in code blocks, but the edit also changed the output from A1 A1 A1 A2... in one long line to A1 A1 A1 A2 ... in separate lines.

– Bodo
Jan 16 at 9:14













@Bodo if you inspect the source of the original revision, it was one per line originally, but Markdown doesn't show it that way.

– Olorin
Jan 17 at 1:43





@Bodo if you inspect the source of the original revision, it was one per line originally, but Markdown doesn't show it that way.

– Olorin
Jan 17 at 1:43













If uniq is working in a form of printing one from each type, then it won't work for my case. I need to just get the repetitive distinct touches as well. For example two different A1s can come one after. Or I need an exception handling mechanism in order not to send some wrong characters inside. So any ideas?

– ybaylav
Jan 18 at 9:11





If uniq is working in a form of printing one from each type, then it won't work for my case. I need to just get the repetitive distinct touches as well. For example two different A1s can come one after. Or I need an exception handling mechanism in order not to send some wrong characters inside. So any ideas?

– ybaylav
Jan 18 at 9:11










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