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How to modify a global variable within a function in bash?
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var="$(myfunc)"
echo "$var"
Gives:
Hello
For a numerical value from 0-255, you can use return to pass the number as the exit status:
mysecondfunc() {
echo "Hello"
return 4
}
var="$(mysecondfunc)"
num_var=$?
echo "$var - num is $num_var"
Gives:
Hello - num is 4
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Why does Haskell's “do nothing” function, id, consume tons of memory?
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edited May 19 '14 at 20:52
answered May 19 '14 at 20:47
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Which iomanip manipulators are 'sticky'?
...there are requirements on formatted output operations to explicitly .width(0) the output stream.
The following is the discussion that lead to the above conclusion:
Looking at the code the following manipulators return an object rather than a stream:
setiosflags
resetiosflags
setbase
setfill
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Why is TypedReference behind the scenes? It's so fast and safe… almost magical!
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edited Jun 20 at 9:12
Community♦
111 silver badge
answered Jan 23 '11 at 13:07
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How to jump to a specific character in vim?
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answered Feb 22 '12 at 20:46
Lars KotthoffLars Kotthoff
98.3k1313 gold badges176176 silver badges180180 bronze badges
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What is ng-transclude?
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90
This is much better description, than their official docs. That one makes my head hurt.
– Capaj
May 2...
RVM is not working in ZSH
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intellidiotintellidiot
10.3k44 gold badges3030 silver badges4141 bronze badges
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How to include layout inside layout?
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edited Sep 5 at 10:59
Peter Naggschga
1344 bronze badges
answered Apr 12 '11 at 8:03
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Ruby: Change negative number to positive number?
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Using abs will return the absolute value of a number
-300.abs # 300
300.abs # 300
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How to assertThat something is null with Hamcrest?
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260
You can use IsNull.nullValue() method:
import static org.hamcrest.Matchers.is;
import static or...