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On Thu, Feb 23, 2012 at 5:24 PM, Harry Putnam <reader@×××××××.com> wrote: |
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> Kevin Monceaux <Kevin@××××××××××.net> writes: |
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> |
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>> On Thu, Feb 23, 2012 at 08:42:00PM +0000, Alan Mackenzie wrote: |
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>> |
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>>> (a) using less, and have it take just 10 screen lines; (b) using cat etc., |
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>>> and have the interesting part scroll away. |
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>> |
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>> (c) use less -F and less will automatically exit if the entire file can fit |
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>> on one screen. One can export LESS='-F' to have less always do the above. |
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> |
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> Maybe I'm seeing behavior that is not supposed to happen, but if I say |
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> echo '## ONE LINE' > test |
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> |
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> And then say less -F test |
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> |
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> I do not get to see the one line. I don't think that's what Alan |
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> was looking for is it? |
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It is caused by "alternate screen" handling in your terminal emulator. |
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You can disable alternate screen in your terminal (if possible), or |
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remove the smcup and rmcup directives from your termcap file. |
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|
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As a test, you can try this: |
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|
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export TERM=vt220 |
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less -F test |
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|
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it should display the one line file. |
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Or you can use the -X option of less like Willie said which inhibits |
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less from using the alternate screen. |
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But I think it may still be a bug in less, because when it's not in |
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"pager mode" we shouldn't be using the alternate screen anyway. Taking |
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a look at the bug list on the less website, I don't see anything. |
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Might be worth submitting. |
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