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How to check if a file contains a specific string using Bash
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In addition to other answers, which told you how to do what you wanted, I try to explain what was wrong (which is what you wanted.
In Bash, if is to be followed with a command. If the exit code of this command is equal to 0, then the then part is executed, else the else part if ...
what is the difference between OLE DB and ODBC data sources?
I was reading a MS Excel help article about pivotcache and wonder what they mean by OLE DB and ODBC sources
11 Answers
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How do I change bash history completion to complete what's already on the line?
... command a couple of months ago that made my bash history auto-complete on what's already on the line when pressing the up arrow:
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Remove all occurrences of char from string
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What to do in case the X is of type char?
– KNU
Mar 6 '14 at 6:46
7
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Custom exception type
...or = InvalidArgumentException;
This is basically a simplified version of what disfated posted above with the enhancement that stack traces work on Firefox and other browsers. It satisfies the same tests that he posted:
Usage:
throw new InvalidArgumentException();
var err = new InvalidArgumentEx...
What is the official “preferred” way to install pip and virtualenv systemwide?
... is that you want system-wide installations of pip and virtualenv, this is what I generally do. The instructions from the pip docs that are given as the second alternative in the question are based on the premise that we're avoiding installing anything system-wide.
– Carl Meyer...
what is “strict mode” and how is it used?
...alled "strict mode" . I read it over and I'm having trouble understanding what it does. Can someone briefly explain (in general) what its purpose is and how it is useful?
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jQuery find events handlers registered with an object
...y of doing it now is -
$._data(element, "events")
The underscore ("_") is what makes the difference here. Internally, it is calling $.data(element, name, null, true), the last (fourth) parameter is an internal one ("pvt").
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How to solve the “failed to lazily initialize a collection of role” Hibernate exception
... could be used as a workaround, but not an actual solution to the problem. What if we need to fetch lazily?
– Dkyc
Oct 20 '14 at 11:59
14
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What is the difference between a pseudo-class and a pseudo-element in CSS?
...r lose a pseudo-class while a user interacts with the document.
Source
What does this mean?
The important nature of pseudo-classes is stated in the very first sentence: "the pseudo-class concept [...] permit selection". It enables the author of an stylesheet to differ between elements based on ...