Windows command shell randomly prints block characters at output line endings











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In my command prompt in Windows 10 (new console), I frequently see random cursor characters rendered at the end of some lines, depending on the load in other tasks. I believe this is associated with output lines containing LF characters (rather than Windows' usual CRLF line endings). Has anybody else seen this? Is there a way to stop these random cursor characters from printing?



Example output










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  • You're referring to the blocks at the ends of four of the lines? If that related to the Linux/Windows difference in line termination, it should be the same on every line.
    – fixer1234
    Nov 27 at 20:11










  • @fixer1234 — good point. I neglected to mention that I do not see this behavior in tools that emit CRLF line endings, only in tools that use LF only.
    – Steve Hollasch
    Nov 27 at 20:46










  • Have you tried copying lines with and without the blocks, and looking at the actual characters with a hex editor?
    – fixer1234
    Nov 27 at 20:59










  • It's a visual artifact. If you select and copy, the marks disappear. Pasting the copied data anyways yield no additional actual character. (And I'm not sure what encoding that would be. UTF-8?) Interestingly, if I use the command-prompt copy of what I would assume to be CRLF text (the help output of the dir command), I still see only LF characters.
    – Steve Hollasch
    Nov 27 at 21:11










  • More interesting. If I select a character anywhere on a line with the cursor character at the end, the end mark disappears. Wait. Only sometimes. And some other times, selecting a character after the mark on the same line erases the mark. Odd.
    – Steve Hollasch
    Nov 27 at 21:13

















up vote
0
down vote

favorite












In my command prompt in Windows 10 (new console), I frequently see random cursor characters rendered at the end of some lines, depending on the load in other tasks. I believe this is associated with output lines containing LF characters (rather than Windows' usual CRLF line endings). Has anybody else seen this? Is there a way to stop these random cursor characters from printing?



Example output










share|improve this question






















  • You're referring to the blocks at the ends of four of the lines? If that related to the Linux/Windows difference in line termination, it should be the same on every line.
    – fixer1234
    Nov 27 at 20:11










  • @fixer1234 — good point. I neglected to mention that I do not see this behavior in tools that emit CRLF line endings, only in tools that use LF only.
    – Steve Hollasch
    Nov 27 at 20:46










  • Have you tried copying lines with and without the blocks, and looking at the actual characters with a hex editor?
    – fixer1234
    Nov 27 at 20:59










  • It's a visual artifact. If you select and copy, the marks disappear. Pasting the copied data anyways yield no additional actual character. (And I'm not sure what encoding that would be. UTF-8?) Interestingly, if I use the command-prompt copy of what I would assume to be CRLF text (the help output of the dir command), I still see only LF characters.
    – Steve Hollasch
    Nov 27 at 21:11










  • More interesting. If I select a character anywhere on a line with the cursor character at the end, the end mark disappears. Wait. Only sometimes. And some other times, selecting a character after the mark on the same line erases the mark. Odd.
    – Steve Hollasch
    Nov 27 at 21:13















up vote
0
down vote

favorite









up vote
0
down vote

favorite











In my command prompt in Windows 10 (new console), I frequently see random cursor characters rendered at the end of some lines, depending on the load in other tasks. I believe this is associated with output lines containing LF characters (rather than Windows' usual CRLF line endings). Has anybody else seen this? Is there a way to stop these random cursor characters from printing?



Example output










share|improve this question













In my command prompt in Windows 10 (new console), I frequently see random cursor characters rendered at the end of some lines, depending on the load in other tasks. I believe this is associated with output lines containing LF characters (rather than Windows' usual CRLF line endings). Has anybody else seen this? Is there a way to stop these random cursor characters from printing?



Example output







windows command-line






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share|improve this question











share|improve this question




share|improve this question










asked Nov 27 at 20:03









Steve Hollasch

1012




1012












  • You're referring to the blocks at the ends of four of the lines? If that related to the Linux/Windows difference in line termination, it should be the same on every line.
    – fixer1234
    Nov 27 at 20:11










  • @fixer1234 — good point. I neglected to mention that I do not see this behavior in tools that emit CRLF line endings, only in tools that use LF only.
    – Steve Hollasch
    Nov 27 at 20:46










  • Have you tried copying lines with and without the blocks, and looking at the actual characters with a hex editor?
    – fixer1234
    Nov 27 at 20:59










  • It's a visual artifact. If you select and copy, the marks disappear. Pasting the copied data anyways yield no additional actual character. (And I'm not sure what encoding that would be. UTF-8?) Interestingly, if I use the command-prompt copy of what I would assume to be CRLF text (the help output of the dir command), I still see only LF characters.
    – Steve Hollasch
    Nov 27 at 21:11










  • More interesting. If I select a character anywhere on a line with the cursor character at the end, the end mark disappears. Wait. Only sometimes. And some other times, selecting a character after the mark on the same line erases the mark. Odd.
    – Steve Hollasch
    Nov 27 at 21:13




















  • You're referring to the blocks at the ends of four of the lines? If that related to the Linux/Windows difference in line termination, it should be the same on every line.
    – fixer1234
    Nov 27 at 20:11










  • @fixer1234 — good point. I neglected to mention that I do not see this behavior in tools that emit CRLF line endings, only in tools that use LF only.
    – Steve Hollasch
    Nov 27 at 20:46










  • Have you tried copying lines with and without the blocks, and looking at the actual characters with a hex editor?
    – fixer1234
    Nov 27 at 20:59










  • It's a visual artifact. If you select and copy, the marks disappear. Pasting the copied data anyways yield no additional actual character. (And I'm not sure what encoding that would be. UTF-8?) Interestingly, if I use the command-prompt copy of what I would assume to be CRLF text (the help output of the dir command), I still see only LF characters.
    – Steve Hollasch
    Nov 27 at 21:11










  • More interesting. If I select a character anywhere on a line with the cursor character at the end, the end mark disappears. Wait. Only sometimes. And some other times, selecting a character after the mark on the same line erases the mark. Odd.
    – Steve Hollasch
    Nov 27 at 21:13


















You're referring to the blocks at the ends of four of the lines? If that related to the Linux/Windows difference in line termination, it should be the same on every line.
– fixer1234
Nov 27 at 20:11




You're referring to the blocks at the ends of four of the lines? If that related to the Linux/Windows difference in line termination, it should be the same on every line.
– fixer1234
Nov 27 at 20:11












@fixer1234 — good point. I neglected to mention that I do not see this behavior in tools that emit CRLF line endings, only in tools that use LF only.
– Steve Hollasch
Nov 27 at 20:46




@fixer1234 — good point. I neglected to mention that I do not see this behavior in tools that emit CRLF line endings, only in tools that use LF only.
– Steve Hollasch
Nov 27 at 20:46












Have you tried copying lines with and without the blocks, and looking at the actual characters with a hex editor?
– fixer1234
Nov 27 at 20:59




Have you tried copying lines with and without the blocks, and looking at the actual characters with a hex editor?
– fixer1234
Nov 27 at 20:59












It's a visual artifact. If you select and copy, the marks disappear. Pasting the copied data anyways yield no additional actual character. (And I'm not sure what encoding that would be. UTF-8?) Interestingly, if I use the command-prompt copy of what I would assume to be CRLF text (the help output of the dir command), I still see only LF characters.
– Steve Hollasch
Nov 27 at 21:11




It's a visual artifact. If you select and copy, the marks disappear. Pasting the copied data anyways yield no additional actual character. (And I'm not sure what encoding that would be. UTF-8?) Interestingly, if I use the command-prompt copy of what I would assume to be CRLF text (the help output of the dir command), I still see only LF characters.
– Steve Hollasch
Nov 27 at 21:11












More interesting. If I select a character anywhere on a line with the cursor character at the end, the end mark disappears. Wait. Only sometimes. And some other times, selecting a character after the mark on the same line erases the mark. Odd.
– Steve Hollasch
Nov 27 at 21:13






More interesting. If I select a character anywhere on a line with the cursor character at the end, the end mark disappears. Wait. Only sometimes. And some other times, selecting a character after the mark on the same line erases the mark. Odd.
– Steve Hollasch
Nov 27 at 21:13

















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