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How to modify a global variable within a function in bash?
...r="$(myfunc)"
echo "$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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How do I list all files of a directory?
... |
edited Mar 11 at 19:56
Vaibhav
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answered Jul 8...
Difference between virtual and abstract methods [duplicate]
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335
Virtual methods have an implementation and provide the derived classes with the option of overri...
How do I uniquely identify computers visiting my web site?
...
58
These people have developed a fingerprinting method for recognising a user with a high level of...
POST data with request module on Node.JS
... Reza Owliaei
3,02044 gold badges2929 silver badges5252 bronze badges
answered Jun 21 '11 at 22:33
Diego TorresDiego Torres
4,948...
Changing navigation title programmatically
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550
You change the title by changing the title of the view controller being displayed:
viewContro...
How can I remove a button or make it invisible in Android?
...
gregschlom
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answered Nov 8 '10 at 20:37
Konstantin BurovKonstantin Burov
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Parse DateTime string in JavaScript
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Jonathan FinglandJonathan Fingland
52k1111 gold badges7979 silver badges7777 bronze badges
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How can I split and trim a string into parts all on one line?
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edited Nov 13 '09 at 10:15
answered Nov 13 '09 at 10:10
C...
How to fix “Headers already sent” error in PHP
...set of HTTP/CGI headers to the webserver:
HTTP/1.1 200 OK
Powered-By: PHP/5.3.7
Vary: Accept-Encoding
Content-Type: text/html; charset=utf-8
<html><head><title>PHP page output page</title></head>
<body><h1>Content</h1> <p>Some more output follo...