Var - Revision history

Tovrleaf at 15:59, 25 August 2005

2005-08-25T15:59:18Z

← Older revision		Revision as of 15:59, 25 August 2005
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	~~== Local Variables ==~~		#Redirect [[Local Variables]]

	~~Var creates the local variable in the current routine and can only be referenced from inside this routine.~~

	~~The difference between /var and [~~[~~/set]] is that var creates local variable what only exists while script is executed. Set sets value to variable and stores it there until it's~~ [~~[unset]].~~ Local ~~variables doesn't overwrite variables set with "set" command values.~~

	~~You can set multible variables with one set~~
	~~var %x = foo, %y = bar~~

	~~Usage of = in syntax is optional~~
	~~var %x foo~~

	~~You can use /var -s to make a variable show the result when a value is set.~~

	~~== Example ==~~

	~~First, let's create [[Aliases\|alias]] needed later on.~~
	~~alias var_example { var -s %x foo \| set -s %y bar }~~

	~~Now, let's play around.~~

	~~; set values to variables with set so values exists until they're unset~~
	~~set %x 10~~
	~~set %y %x~~
	~~; value fro %x is copyed to %y (for users from with previous knowledge from scripting)~~

	~~; call of your own alias~~
	~~var_example~~
	~~; displays~~
	~~; * Set %x to foo~~
	~~; * Set %y to bar~~

	~~; now, let's display %x and %y values~~
	~~[[echo]] -a %x~~
	~~; returns 10~~
	~~[[echo]] -a %y~~
	~~; returns bar~~

	~~As we can see, %x still holds it origial value because /var creates only local variable, but %y was overwritten with /set.~~

	~~[[Category:Local_Variables~~]]

Tovrleaf at 15:56, 25 August 2005

2005-08-25T15:56:20Z

← Older revision		Revision as of 15:56, 25 August 2005
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			== Local Variables ==

	Var creates the local variable in the current routine and can only be referenced from inside this routine.		Var creates the local variable in the current routine and can only be referenced from inside this routine.

Tovrleaf: links added

2005-08-24T17:37:23Z

links added

← Older revision		Revision as of 17:37, 24 August 2005
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	You can use /var -s to make a variable show the result when a value is set.		You can use /var -s to make a variable show the result when a value is set.

	== Example		== Example ==

	First, let's create [[Aliases\|alias]] needed later on.		First, let's create [[Aliases\|alias]] needed later on.
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	; now, let's display %x and %y values		; now, let's display %x and %y values
	echo -a %x		[[echo]] -a %x
	; returns 10		; returns 10
	echo -a %y		[[echo]] -a %y
	; returns bar		; returns bar

Tovrleaf at 17:35, 24 August 2005

2005-08-24T17:35:31Z

New page

Var creates the local variable in the current routine and can only be referenced from inside this routine.

The difference between /var and [[/set]] is that var creates local variable what only exists while script is executed. Set sets value to variable and stores it there until it's [[unset]]. Local variables doesn't overwrite variables set with "set" command values.

You can set multible variables with one set
var %x = foo, %y = bar

Usage of = in syntax is optional
var %x foo

You can use /var -s to make a variable show the result when a value is set.

== Example

First, let's create [[Aliases|alias]] needed later on.
alias var_example { var -s %x foo | set -s %y bar }

Now, let's play around.

; set values to variables with set so values exists until they're unset
set %x 10
set %y %x
; value fro %x is copyed to %y (for users from with previous knowledge from scripting)

; call of your own alias
var_example
; displays
; * Set %x to foo
; * Set %y to bar

; now, let's display %x and %y values
echo -a %x
; returns 10
echo -a %y
; returns bar

As we can see, %x still holds it origial value because /var creates only local variable, but %y was overwritten with /set.

[[Category:Local_Variables]]