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?
windows command-line
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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?
windows command-line
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 thedir
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
add a comment |
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?
windows command-line
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?
windows command-line
windows command-line
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 thedir
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
add a comment |
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 thedir
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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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