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Is there a TRY CATCH command in Bash
I'm writing a shell script and need to check that a terminal app has been installed. I want to use a TRY/CATCH command to do this unless there is a neater way.
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How can I remove the first line of a text file using bash/sed script?
...p" "$FILE"
The && will make sure that the file doesn't get overwritten when there is a problem.
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Margin-Top push outer div down
... my wrapper div, but when I add a top margin to a h1 inside the header div it pushes the entire header div down. I realize this happens whenever I apply a top margin to the first visible element on a page.
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Java String remove all non numeric characters
...s and characters that are not 0-9 and a period. I'm using Character.isDigit() but it also removes decimal, how can I also keep the decimal?
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How to get the raw value an field?
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According to the WHATWG, you shouldn't be able to get the value unless it's valid numeric input. The input number field's sanitization algorithm says the browser is supposed to set the value to an empty string if the input isn't a valid floating point number.
The value sanitization algorithm...
MySQL offset infinite rows
...offset by 5 from the start of the table. As far as I can tell, MySQL's LIMIT requires a limit as well as an offset. Is there any way to do this?
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annotation to make a private method public only for test classes [duplicate]
...s to make the private method protected or package-private and to put the unit test for this method in the same package as the class under test.
Guava has a @VisibleForTesting annotation, but it's only for documentation purposes.
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Why is printing “B” dramatically slower than printing “#”?
...g, and treats B as a word character but # as a non-word character. So when it reaches the end of a line and searches for a place to break the line, it sees a # almost immediately and happily breaks there; whereas with the B, it has to keep searching for longer, and may have more text to wrap (which ...
How does the Comma Operator work
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It would be equal to b.
The comma operator has a lower precedence than assignment.
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How to read a file into a variable in shell?
I want to read a file and save it in variable, but I need to keep the variable and not just print out the file.
How can I do this? I have written this script but it isn't quite what I needed:
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