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Share variable between functions

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# 1  
Old 01-20-2014
Share variable between functions
Hi,

gtkdialog gui seperate buttons use seperate functions in their GUI. A variable (newFolderName) is being set in one function (funcA) and it needs to be called in another function (funcB). I thought using global variable (like in python) concept should work however it does not.

How else is it possible to do share variables between functions. ?

Example

Code:
funcA() {
	newFolderName=v01
}

funcB() {
	mkdir newFolderName
}

funcA and funcB are called as action to button

Code:
<button>
	<label>Confirm</label>
	<action>funcConfirmDisplayText</action>
</button>

<button>
	<label>Start</label>
	<action>funcStart</action>
</button>

Last edited by Corona688; 01-20-2014 at 01:06 PM..
# 2  
Old 01-20-2014
Quote:
Originally Posted by singhai.nish
Hi,

gtkdialog gui seperate buttons use seperate functions in their GUI. A variable (newFolderName) is being set in one function (funcA) and it needs to be called in another function (funcB). I thought using global variable (like in python) concept should work however it does not.

How else is it possible to do share variables between functions. ?

Example

funcA() {
newFolderName=v01
}

funcB() {
mkdir newFolderName
}

funcA and funcB are called as action to button

<button>
<label>Confirm</label>
<action>funcConfirmDisplayText</action>
</button>

<button>
<label>Start</label>
<action>funcStart</action>
</button>
change to mkdir $newFolderName
# 3  
Old 01-20-2014
Quote:
Originally Posted by Akshay Hegde
change to mkdir $newFolderName

Oops that is already true ( it is actually mkdir $newFolderName )
# 4  
Old 01-25-2014
You can always pass a variable to a function:

Code:
funcA(){
  echo "Hello $1"
  funcB v01-$1
}
funcB(){
  mkdir $1
}
funcA Singhai

Will echo "Hello Singhai" and create a folder named "v01-Singhai"

When you define a variable prior to functions, that value will be used.
However, if you define a variable with the same name within a function, that value will remain inside the function.

Not sure if 'special' shopt settings are required or if its regular behaviour.
Last edited by sea; 01-25-2014 at 10:40 PM..
# 5  
Old 01-26-2014
Longhand on OSX 10.7.5, default bash terminal...

Not sure if this is what you are after:-
Code:
Last login: Sun Jan 26 09:38:30 on ttys000
AMIGA:barrywalker~> FuncA() { text="This is function A with a variable..."; }
AMIGA:barrywalker~> FuncB() { eval $1; echo "$text"; }
AMIGA:barrywalker~> FuncB FuncA
This is function A with a variable...
AMIGA:barrywalker~> _

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