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How can I match a string with a regex in Bash?
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To match regexes you need to use the =~ operator.
Try this:
[[ sed-4.2.2.tar.bz2 =~ tar.bz2$ ]] && echo matched
Alternatively, you can use wildcards (instead of regexes) with the == operator:
[[ sed-4.2.2.tar.bz2 == *tar.bz2 ]] && echo matched
If portability is not a con...
Undefined, unspecified and implementation-defined behavior
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418
Undefined behavior is one of those aspects of the C and C++ language that can be surprising to...
How to run eclipse in clean mode? what happens if we do so?
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edited Oct 30 '15 at 13:44
ROMANIA_engineer
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How to migrate back from initial migration in Django 1.7?
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supervacuo
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answered Sep 1 '14 at 14:25
ChillarAnandChillarAnand
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Numpy matrix to array
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edited Jul 26 '10 at 20:14
answered Jul 26 '10 at 19:41
Jo...
Change select box option background color
...r on the option tag and not the select tag...
select option {
margin: 40px;
background: rgba(0, 0, 0, 0.3);
color: #fff;
text-shadow: 0 1px 0 rgba(0, 0, 0, 0.4);
}
If you want to style each one of the option tags.. use the css attribute selector:
select option {
margin: 40...
What does collation mean?
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answered Dec 27 '10 at 12:48
paxdiablopaxdiablo
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Want to exclude file from “git diff”
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341
Omg, drivers and awk to exclude a lousy file ? Since git 1.9 something you can:
git diff -- . ...
How to make RatingBar to show five stars
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answered Oct 4 '10 at 21:24
Alex VolovoyAlex Volovoy
63.9k1313 gold badges7171 silver badges5252 bronze badges
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Why do we use Base64?
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Your first mistake is thinking that ASCII encoding and Base64 encoding are interchangeable. They are not. They are used for different purposes.
When you encode text in ASCII, you start with a text string and convert it to a sequence of bytes.
When you encode data in Base64, you star...