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How to modify a global variable within a function in bash?
...ar="$(myfunc)"
echo "$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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Remove duplicate lines without sorting [duplicate]
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281
The UNIX Bash Scripting blog suggests:
awk '!x[$0]++'
This command is telling awk which lin...
How do I remove lines between ListViews on Android?
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12 Answers
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Use space as a delimiter with cut command
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372
cut -d ' ' -f 2
Where 2 is the field number of the space-delimited field you want.
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How to draw a rounded Rectangle on HTML Canvas?
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12 Answers
12
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What's the difference between size_t and int in C++?
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edited Jun 20 at 9:12
Community♦
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answered Feb 2 '09 at 11:07
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How to style UITextview to like Rounded Rect text field?
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20 Answers
20
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Return array in a function
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206
In this case, your array variable arr can actually also be treated as a pointer to the beginni...
Android AsyncTask threads limits?
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207
All AsyncTasks are controlled internally by a shared (static) ThreadPoolExecutor and a LinkedB...