I tried browsing and cant fnd the command for the double bracket symbol found below:
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I know what my symbol or character looks like, but I don't know what the command is or which math alphabet it came from. How do I go about finding this out?
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If I open files I created in Windows, the lines all end with ^M. How do I delete these characters all at once?
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Tried to add a comment to a post today, which ended up looking rather weird. What I had typed was:  On windows I believe you need to use `\` instead of `/`   As you can see in the first comment to this question, I don't exactly end up with what I thought I would... What's going on here?  Tried various combinations of double \\ and double `` (which seems to be impossible to have in an inline code thing...?), but couldn't get a good result. Ended up putting a space after the slash, which at least made it readable. Problem then was that the space between the inline code and the word "instead" seems to disappear O.o
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With this set of commands, what are the {} and \; characters for? find . -name '*.clj' -exec grep -r resources {} \;
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I am trying to Load test on the link:  and getting this error message:   Expected closing bracket for IPv6 address at index 28  Please could you help  Tuti
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What does $\mathbb{Z}[[t]]$ mean? Why are there double square brackets?  I can't search through Google, because I can't search Latex.
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I am curious as to whether there is an equivalent to the Alt-. command on Mac. On my computer it inserts the following character: ≥, instead of showing the .
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This question might sound silly, but I'm trying to install webmin on Ubuntu server and I need to execute this command:  wget -q http://www.webmin.com/jcameron-key.asc -O- | sudo apt-key add -   but I'm unable to do it, because I cannot use the pipe symbol "|". I've tried every key from my keyboard, as well single key and combination Ctrl+key or Shift+key. I cannot copy paste as well, because Shift+Ctrl+V doesn't work neither (though I've enabled common buffer for my pc and virtual machine).  What else can I do here?
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How to create the following symbol?
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Whenever I'm at the console login, I press up arrow intentionally to see the previously typed commands. But I see this ^[[A.  But when I press Ctrl Alt Print Screen Scroll Lock Pause Break Page Up Page Down Win keys doesn't echo any characters.  What might be the reason behind?  Does ^[[A sort of characters imply anything?
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What is a , and how do I use them on Ubuntu?
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What symbols/characters are not allowed in tags?
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I wanted to know if someone could point me to a reference where I could learn more about the \the command. Searching for "the" has been, without surprise, entirely unproductive. Even consulting "comprehensive" LaTeX command/macro lists has been unfruitful.   is the only treatment of the subject that I could find, but it was not very informative.
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I keep seeing parentheses and a number after a command in Unix or Linux or C function.   For example: man(8), ftok(2), mount(8), etc.  What do these mean? I see them in man too.
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I was trying to find how to pass some text to a file without overwriting what's there already using the > command and I realised I don't know what it's called. Searching for right arrow or right chevron or more than command didn't show up anything. I've always just called it pass to.
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What is $() in Linux Shell Commands?   For example:  chmod 777 $(pwd)
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Does anyone know how to make (nice looking) double bracket multiset notation in LaTeX. i.e something like (\binom{n}{k}) where there are two outer brackets instead of 1 as in binomial? You can see an example of what I mean in  under the heading "Multiset coefficients" with the double brackets.  In wikpedia they typset it as: \left(\!\!{n\choose k}\!\!\right) but although this works well for LaTeX in maths mode, with inline equations the outer bracket becomes much larger than the inner bracket.  I have also tried using \genfrac{((}{))}{0pt}{}{n}{k} but it has an error with the double brackets.  I am using \binom as well in my document, so I would like the bracket sizes to be similar for \binom and \multiset.  Thanks for any help. I'm surprised I can't find a solution on google.