I can't see the values of a variable written in a function, in another function
0
Here is my code. My main problem is that I ask for a variable in the function location, but when I try to write it in the function Show-Menu it apparently is empty.
I made a search around and I found that should be with the global before the variable. Like this:
function Show-Menu {
Param(
[string]$Title = 'Menu'
)
cls
Write-Host "================ $Title ================"
Write-Host " "
Write-Host "The path is $global:path"
Write-Host "1: Press '1' for IDF config."
Write-Host "2: Press '2' for MDF config."
Write-Host "Q: Press 'Q' to quit."
}
function location {
cls
$global:path = Read-Host -Prompt "Set path to save your configurations (default C:Network_configs)"
#Acuerdate que no funciona bien, por el hecho de tener variables en diferentes funciones.
if ([lenght]$global:path -le 1) {
$global:path = C:Network_configs
}
}
I expect the output with a path C:Network_configs in case there is no keyboard entrance, but I have this output:
================ Menu ================
The path is
1: Press '1' for IDF config.
2: Press '2' for MDF config.
Q: Press 'Q' to quit.
Please make a selection:
powershell
edited Dec 28 '18 at 21:10
Ansgar Wiechers
141k13125185
asked Dec 28 '18 at 19:25
Alvaro Senosiain AzpilicuetaAlvaro Senosiain Azpilicueta
33
add a comment |
0
Here is my code. My main problem is that I ask for a variable in the function location, but when I try to write it in the function Show-Menu it apparently is empty.
I made a search around and I found that should be with the global before the variable. Like this:
function Show-Menu {
Param(
[string]$Title = 'Menu'
)
cls
Write-Host "================ $Title ================"
Write-Host " "
Write-Host "The path is $global:path"
Write-Host "1: Press '1' for IDF config."
Write-Host "2: Press '2' for MDF config."
Write-Host "Q: Press 'Q' to quit."
}
function location {
cls
$global:path = Read-Host -Prompt "Set path to save your configurations (default C:Network_configs)"
#Acuerdate que no funciona bien, por el hecho de tener variables en diferentes funciones.
if ([lenght]$global:path -le 1) {
$global:path = C:Network_configs
}
}
I expect the output with a path C:Network_configs in case there is no keyboard entrance, but I have this output:
================ Menu ================
The path is
1: Press '1' for IDF config.
2: Press '2' for MDF config.
Q: Press 'Q' to quit.
Please make a selection:
powershell
edited Dec 28 '18 at 21:10
Ansgar Wiechers
141k13125185
asked Dec 28 '18 at 19:25
Alvaro Senosiain AzpilicuetaAlvaro Senosiain Azpilicueta
33
1
Where does type[lenght]defined?
– PetSerAl
Dec 28 '18 at 19:36
To be very honest, i thought count the lenght of the characters. But it doesn´t?
– Alvaro Senosiain Azpilicueta
Dec 28 '18 at 19:41
Besides the word being misspelled you are also trying to use "lenght" as a (non existing) datatype. If you want to get the character count on a string I would suggest reading the basic documentation of Powershell instead of "just trying something" (getting the count of something in Powershell is one of the very first you'll learn doing when learning Powershell)
– bluuf
Dec 28 '18 at 20:56
Aside from what already has been said there are other issues with your code as well.$global:path = C:Network_configswill throw an error, b/c the statement would try to execute a program/scriptC:Network_configs. To assign a path string to a variable put the value in quotes ($global:path = 'C:Network_configs'). Also, it's bad practice to modify global variables in functions. Use parameters and return values for the data flow in your scripts.
– Ansgar Wiechers
Dec 28 '18 at 21:07
add a comment |
0
0
0
0
Here is my code. My main problem is that I ask for a variable in the function location, but when I try to write it in the function Show-Menu it apparently is empty.
I made a search around and I found that should be with the global before the variable. Like this:
function Show-Menu {
Param(
[string]$Title = 'Menu'
)
cls
Write-Host "================ $Title ================"
Write-Host " "
Write-Host "The path is $global:path"
Write-Host "1: Press '1' for IDF config."
Write-Host "2: Press '2' for MDF config."
Write-Host "Q: Press 'Q' to quit."
}
function location {
cls
$global:path = Read-Host -Prompt "Set path to save your configurations (default C:Network_configs)"
#Acuerdate que no funciona bien, por el hecho de tener variables en diferentes funciones.
if ([lenght]$global:path -le 1) {
$global:path = C:Network_configs
}
}
I expect the output with a path C:Network_configs in case there is no keyboard entrance, but I have this output:
================ Menu ================
The path is
1: Press '1' for IDF config.
2: Press '2' for MDF config.
Q: Press 'Q' to quit.
Please make a selection:
powershell
edited Dec 28 '18 at 21:10
Ansgar Wiechers
141k13125185
asked Dec 28 '18 at 19:25
Alvaro Senosiain AzpilicuetaAlvaro Senosiain Azpilicueta
33
Here is my code. My main problem is that I ask for a variable in the function location, but when I try to write it in the function Show-Menu it apparently is empty.
I made a search around and I found that should be with the global before the variable. Like this:
function Show-Menu {
Param(
[string]$Title = 'Menu'
)
cls
Write-Host "================ $Title ================"
Write-Host " "
Write-Host "The path is $global:path"
Write-Host "1: Press '1' for IDF config."
Write-Host "2: Press '2' for MDF config."
Write-Host "Q: Press 'Q' to quit."
}
function location {
cls
$global:path = Read-Host -Prompt "Set path to save your configurations (default C:Network_configs)"
#Acuerdate que no funciona bien, por el hecho de tener variables en diferentes funciones.
if ([lenght]$global:path -le 1) {
$global:path = C:Network_configs
}
}
I expect the output with a path C:Network_configs in case there is no keyboard entrance, but I have this output:
================ Menu ================
The path is
1: Press '1' for IDF config.
2: Press '2' for MDF config.
Q: Press 'Q' to quit.
Please make a selection:
powershell
powershell
edited Dec 28 '18 at 21:10
Ansgar Wiechers
141k13125185
asked Dec 28 '18 at 19:25
Alvaro Senosiain AzpilicuetaAlvaro Senosiain Azpilicueta
33
edited Dec 28 '18 at 21:10
Ansgar Wiechers
141k13125185
asked Dec 28 '18 at 19:25
Alvaro Senosiain AzpilicuetaAlvaro Senosiain Azpilicueta
33
edited Dec 28 '18 at 21:10
Ansgar Wiechers
141k13125185
edited Dec 28 '18 at 21:10
Ansgar Wiechers
141k13125185
edited Dec 28 '18 at 21:10
Ansgar Wiechers
141k13125185
141k13125185
asked Dec 28 '18 at 19:25
Alvaro Senosiain AzpilicuetaAlvaro Senosiain Azpilicueta
33
asked Dec 28 '18 at 19:25
Alvaro Senosiain AzpilicuetaAlvaro Senosiain Azpilicueta
33
asked Dec 28 '18 at 19:25
Alvaro Senosiain AzpilicuetaAlvaro Senosiain Azpilicueta
33
33
1
Where does type[lenght]defined?
– PetSerAl
Dec 28 '18 at 19:36
To be very honest, i thought count the lenght of the characters. But it doesn´t?
– Alvaro Senosiain Azpilicueta
Dec 28 '18 at 19:41
Besides the word being misspelled you are also trying to use "lenght" as a (non existing) datatype. If you want to get the character count on a string I would suggest reading the basic documentation of Powershell instead of "just trying something" (getting the count of something in Powershell is one of the very first you'll learn doing when learning Powershell)
– bluuf
Dec 28 '18 at 20:56
Aside from what already has been said there are other issues with your code as well.$global:path = C:Network_configswill throw an error, b/c the statement would try to execute a program/scriptC:Network_configs. To assign a path string to a variable put the value in quotes ($global:path = 'C:Network_configs'). Also, it's bad practice to modify global variables in functions. Use parameters and return values for the data flow in your scripts.
– Ansgar Wiechers
Dec 28 '18 at 21:07
add a comment |
1
Where does type[lenght]defined?
– PetSerAl
Dec 28 '18 at 19:36
To be very honest, i thought count the lenght of the characters. But it doesn´t?
– Alvaro Senosiain Azpilicueta
Dec 28 '18 at 19:41
Besides the word being misspelled you are also trying to use "lenght" as a (non existing) datatype. If you want to get the character count on a string I would suggest reading the basic documentation of Powershell instead of "just trying something" (getting the count of something in Powershell is one of the very first you'll learn doing when learning Powershell)
– bluuf
Dec 28 '18 at 20:56
Aside from what already has been said there are other issues with your code as well.$global:path = C:Network_configswill throw an error, b/c the statement would try to execute a program/scriptC:Network_configs. To assign a path string to a variable put the value in quotes ($global:path = 'C:Network_configs'). Also, it's bad practice to modify global variables in functions. Use parameters and return values for the data flow in your scripts.
– Ansgar Wiechers
Dec 28 '18 at 21:07
1
1
Where does type
[lenght] defined?– PetSerAl
Dec 28 '18 at 19:36
Where does type
[lenght] defined?– PetSerAl
Dec 28 '18 at 19:36
To be very honest, i thought count the lenght of the characters. But it doesn´t?
– Alvaro Senosiain Azpilicueta
Dec 28 '18 at 19:41
To be very honest, i thought count the lenght of the characters. But it doesn´t?
– Alvaro Senosiain Azpilicueta
Dec 28 '18 at 19:41
Besides the word being misspelled you are also trying to use "lenght" as a (non existing) datatype. If you want to get the character count on a string I would suggest reading the basic documentation of Powershell instead of "just trying something" (getting the count of something in Powershell is one of the very first you'll learn doing when learning Powershell)
– bluuf
Dec 28 '18 at 20:56
Besides the word being misspelled you are also trying to use "lenght" as a (non existing) datatype. If you want to get the character count on a string I would suggest reading the basic documentation of Powershell instead of "just trying something" (getting the count of something in Powershell is one of the very first you'll learn doing when learning Powershell)
– bluuf
Dec 28 '18 at 20:56
Aside from what already has been said there are other issues with your code as well.
$global:path = C:Network_configs will throw an error, b/c the statement would try to execute a program/script C:Network_configs. To assign a path string to a variable put the value in quotes ($global:path = 'C:Network_configs'). Also, it's bad practice to modify global variables in functions. Use parameters and return values for the data flow in your scripts.– Ansgar Wiechers
Dec 28 '18 at 21:07
Aside from what already has been said there are other issues with your code as well.
$global:path = C:Network_configs will throw an error, b/c the statement would try to execute a program/script C:Network_configs. To assign a path string to a variable put the value in quotes ($global:path = 'C:Network_configs'). Also, it's bad practice to modify global variables in functions. Use parameters and return values for the data flow in your scripts.– Ansgar Wiechers
Dec 28 '18 at 21:07
add a comment |
1 Answer
1
active
oldest
votes
0
Using global variables is not recommended check out variable scoping.
However you're very close, try checking for user input, if it is null use the default value.
function Show-Menu
{
Param(
[string]$Title = 'Menu'
)
cls
Write-Host "================ $Title ================"
Write-Host " "
Write-Host "The path is $global:path"
Write-Host "1: Press '1' for IDF config."
Write-Host "2: Press '2' for MDF config."
Write-Host "Q: Press 'Q' to quit."
}
function location
{
cls
$userInput = Read-Host -Prompt "Set path to save your configurations (default C:Network_configs)"
if ($null -eq $userInput)
{
$global:path = 'C:Network_configs'
}
else
{
$global:path = $userInput
}
}
edited Dec 28 '18 at 23:47
Ansgar Wiechers
141k13125185
answered Dec 28 '18 at 22:17
michael dejuliamichael dejulia
1216
1
Please avoid formatting code as a snippet unless the snippet is actually runnable. Proper code formatting is done with the{}button.
– Ansgar Wiechers
Dec 28 '18 at 23:48
Got it. you are absolutely right. I will keep working to avoid the global variables
– Alvaro Senosiain Azpilicueta
Jan 7 at 6:23
Thanks @AlvaroSenosiainAzpilicueta Please up-vote the answer if it resolved your question.
– michael dejulia
Jan 7 at 23:30
add a comment |
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1 Answer
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1 Answer
1
active
oldest
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oldest
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active
oldest
votes
0
Using global variables is not recommended check out variable scoping.
However you're very close, try checking for user input, if it is null use the default value.
function Show-Menu
{
Param(
[string]$Title = 'Menu'
)
cls
Write-Host "================ $Title ================"
Write-Host " "
Write-Host "The path is $global:path"
Write-Host "1: Press '1' for IDF config."
Write-Host "2: Press '2' for MDF config."
Write-Host "Q: Press 'Q' to quit."
}
function location
{
cls
$userInput = Read-Host -Prompt "Set path to save your configurations (default C:Network_configs)"
if ($null -eq $userInput)
{
$global:path = 'C:Network_configs'
}
else
{
$global:path = $userInput
}
}
edited Dec 28 '18 at 23:47
Ansgar Wiechers
141k13125185
answered Dec 28 '18 at 22:17
michael dejuliamichael dejulia
1216
1
Please avoid formatting code as a snippet unless the snippet is actually runnable. Proper code formatting is done with the{}button.
– Ansgar Wiechers
Dec 28 '18 at 23:48
Got it. you are absolutely right. I will keep working to avoid the global variables
– Alvaro Senosiain Azpilicueta
Jan 7 at 6:23
Thanks @AlvaroSenosiainAzpilicueta Please up-vote the answer if it resolved your question.
– michael dejulia
Jan 7 at 23:30
add a comment |
0
Using global variables is not recommended check out variable scoping.
However you're very close, try checking for user input, if it is null use the default value.
function Show-Menu
{
Param(
[string]$Title = 'Menu'
)
cls
Write-Host "================ $Title ================"
Write-Host " "
Write-Host "The path is $global:path"
Write-Host "1: Press '1' for IDF config."
Write-Host "2: Press '2' for MDF config."
Write-Host "Q: Press 'Q' to quit."
}
function location
{
cls
$userInput = Read-Host -Prompt "Set path to save your configurations (default C:Network_configs)"
if ($null -eq $userInput)
{
$global:path = 'C:Network_configs'
}
else
{
$global:path = $userInput
}
}
edited Dec 28 '18 at 23:47
Ansgar Wiechers
141k13125185
answered Dec 28 '18 at 22:17
michael dejuliamichael dejulia
1216
1
Please avoid formatting code as a snippet unless the snippet is actually runnable. Proper code formatting is done with the{}button.
– Ansgar Wiechers
Dec 28 '18 at 23:48
Got it. you are absolutely right. I will keep working to avoid the global variables
– Alvaro Senosiain Azpilicueta
Jan 7 at 6:23
Thanks @AlvaroSenosiainAzpilicueta Please up-vote the answer if it resolved your question.
– michael dejulia
Jan 7 at 23:30
add a comment |
0
0
0
Using global variables is not recommended check out variable scoping.
However you're very close, try checking for user input, if it is null use the default value.
function Show-Menu
{
Param(
[string]$Title = 'Menu'
)
cls
Write-Host "================ $Title ================"
Write-Host " "
Write-Host "The path is $global:path"
Write-Host "1: Press '1' for IDF config."
Write-Host "2: Press '2' for MDF config."
Write-Host "Q: Press 'Q' to quit."
}
function location
{
cls
$userInput = Read-Host -Prompt "Set path to save your configurations (default C:Network_configs)"
if ($null -eq $userInput)
{
$global:path = 'C:Network_configs'
}
else
{
$global:path = $userInput
}
}
edited Dec 28 '18 at 23:47
Ansgar Wiechers
141k13125185
answered Dec 28 '18 at 22:17
michael dejuliamichael dejulia
1216
Using global variables is not recommended check out variable scoping.
However you're very close, try checking for user input, if it is null use the default value.
function Show-Menu
{
Param(
[string]$Title = 'Menu'
)
cls
Write-Host "================ $Title ================"
Write-Host " "
Write-Host "The path is $global:path"
Write-Host "1: Press '1' for IDF config."
Write-Host "2: Press '2' for MDF config."
Write-Host "Q: Press 'Q' to quit."
}
function location
{
cls
$userInput = Read-Host -Prompt "Set path to save your configurations (default C:Network_configs)"
if ($null -eq $userInput)
{
$global:path = 'C:Network_configs'
}
else
{
$global:path = $userInput
}
}
edited Dec 28 '18 at 23:47
Ansgar Wiechers
141k13125185
answered Dec 28 '18 at 22:17
michael dejuliamichael dejulia
1216
edited Dec 28 '18 at 23:47
Ansgar Wiechers
141k13125185
edited Dec 28 '18 at 23:47
Ansgar Wiechers
141k13125185
edited Dec 28 '18 at 23:47
Ansgar Wiechers
141k13125185
141k13125185
answered Dec 28 '18 at 22:17
michael dejuliamichael dejulia
1216
answered Dec 28 '18 at 22:17
michael dejuliamichael dejulia
1216
answered Dec 28 '18 at 22:17
michael dejuliamichael dejulia
1216
1216
1
Please avoid formatting code as a snippet unless the snippet is actually runnable. Proper code formatting is done with the{}button.
– Ansgar Wiechers
Dec 28 '18 at 23:48
Got it. you are absolutely right. I will keep working to avoid the global variables
– Alvaro Senosiain Azpilicueta
Jan 7 at 6:23
Thanks @AlvaroSenosiainAzpilicueta Please up-vote the answer if it resolved your question.
– michael dejulia
Jan 7 at 23:30
add a comment |
1
Please avoid formatting code as a snippet unless the snippet is actually runnable. Proper code formatting is done with the{}button.
– Ansgar Wiechers
Dec 28 '18 at 23:48
Got it. you are absolutely right. I will keep working to avoid the global variables
– Alvaro Senosiain Azpilicueta
Jan 7 at 6:23
Thanks @AlvaroSenosiainAzpilicueta Please up-vote the answer if it resolved your question.
– michael dejulia
Jan 7 at 23:30
1
1
Please avoid formatting code as a snippet unless the snippet is actually runnable. Proper code formatting is done with the
{} button.– Ansgar Wiechers
Dec 28 '18 at 23:48
Please avoid formatting code as a snippet unless the snippet is actually runnable. Proper code formatting is done with the
{} button.– Ansgar Wiechers
Dec 28 '18 at 23:48
Got it. you are absolutely right. I will keep working to avoid the global variables
– Alvaro Senosiain Azpilicueta
Jan 7 at 6:23
Got it. you are absolutely right. I will keep working to avoid the global variables
– Alvaro Senosiain Azpilicueta
Jan 7 at 6:23
Thanks @AlvaroSenosiainAzpilicueta Please up-vote the answer if it resolved your question.
– michael dejulia
Jan 7 at 23:30
Thanks @AlvaroSenosiainAzpilicueta Please up-vote the answer if it resolved your question.
– michael dejulia
Jan 7 at 23:30
add a comment |
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1
Where does type
[lenght]defined?– PetSerAl
Dec 28 '18 at 19:36
To be very honest, i thought count the lenght of the characters. But it doesn´t?
– Alvaro Senosiain Azpilicueta
Dec 28 '18 at 19:41
Besides the word being misspelled you are also trying to use "lenght" as a (non existing) datatype. If you want to get the character count on a string I would suggest reading the basic documentation of Powershell instead of "just trying something" (getting the count of something in Powershell is one of the very first you'll learn doing when learning Powershell)
– bluuf
Dec 28 '18 at 20:56
Aside from what already has been said there are other issues with your code as well.
$global:path = C:Network_configswill throw an error, b/c the statement would try to execute a program/scriptC:Network_configs. To assign a path string to a variable put the value in quotes ($global:path = 'C:Network_configs'). Also, it's bad practice to modify global variables in functions. Use parameters and return values for the data flow in your scripts.– Ansgar Wiechers
Dec 28 '18 at 21:07