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Check if bash variable equals 0 [duplicate]

...and appears empty to bash. You can verify this using the below tests which all evaluate to true because xyz is either empty or unset: if [ -z ] ; then echo "true"; else echo "false"; fi xyz=""; if [ -z "$xyz" ] ; then echo "true"; else echo "false"; fi unset xyz; if [ -z "$xyz" ] ; then echo "t...
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How to download a Nuget package without nuget.exe or Visual Studio extension?

...st tried this, and it looks like the link is now over to the right and is called "Manual download". – RenniePet Sep 22 '17 at 15:13 2 ...
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How to center absolute div horizontally using CSS?

I've a div and want it to be centered horizontally - although I'm giving it margin:0 auto; it's not centered... 8 Answers...
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How do you tell the Visual Studio project type from an existing Visual Studio project

...o find if you clicked on the folder or the project) -> Properties. Then all information is available for the project. share | improve this answer | follow |...
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jQuery get value of select onChange

...then FireFox (22.0) does not trigger the change event. You need to additionally bind keypress for FireFox. Additional Info: jQuery 1.10.2 using the syntax $('select').on('change', function(){ /* do seomthing */ }); – MonkeyZeus Jul 31 '13 at 13:57 ...
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How to get item's position in a list?

...er probably 25 years of questioning functional programming, I think I'm finally getting the clue. list comprehension is da bomb. – Charlie Martin Dec 13 '08 at 18:30 15 ...
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Best way to add comments in erb

... you can embed every ruby code between: <%= and the other: %>, typically all written in one line. In addition, ruby one-line comments start always with #, so the <%=# Comment %> style matches perfectly with both pure-ruby and erb styles for one-line comments. ...
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C compile error: “Variable-sized object may not be initialized”

... I am assuming that you are using a C99 compiler (with support for dynamically sized arrays). The problem in your code is that at the time when the compilers sees your variable declaration it cannot know how many elements there are in the array (I am also assuming here, from the compiler error that...
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How to select/get drop down option in Selenium 2

...elect(driver.findElement(By.xpath("//path_to_drop_down"))); select.deselectAll(); select.selectByVisibleText("Value1"); To get the first selected value: WebElement option = select.getFirstSelectedOption() share ...
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How do I read a text file of about 2 GB? [duplicate]

... I managed to run Glogg without rights to install programs on my Windows laptop as follows: download the Windows installer exe and instead of executing the installer exe, extract it (with e.g. 7-Zip). Inside the extracted root folder, run glogg.exe ...