Manipulate FOR command variables?
It works.
:: %%a is output of FOR loop in batch:
set _string=%%a
:: First two chars:
set "_two=!_string:~0,2!"
I would like to get the two characters by operating directly on %%a,
i.e. without creating the intermediate variable _string.
Possible?
batch-file for-loop variables
add a comment |
It works.
:: %%a is output of FOR loop in batch:
set _string=%%a
:: First two chars:
set "_two=!_string:~0,2!"
I would like to get the two characters by operating directly on %%a,
i.e. without creating the intermediate variable _string.
Possible?
batch-file for-loop variables
1
TheFOR
variable only works within the scope of theFOR
command. You have noFOR
command in your code. Please take the Tour. Learn how to ask a good question. And also read, How to create a Minimal, Complete, and Verifiable example.
– Squashman
Nov 24 '18 at 2:49
2
To answer your question. You can only do string manipulation on Environmental Variables. Meta-Variables from the FOR command or command line arguments cannot be manipulated directly.
– Squashman
Nov 24 '18 at 3:05
@Squashman, you saw, upon reconsideration, that my question is a good question, then answered according, for which I thank you. Exactly what I wanted to know.
– displayname
Nov 25 '18 at 18:14
add a comment |
It works.
:: %%a is output of FOR loop in batch:
set _string=%%a
:: First two chars:
set "_two=!_string:~0,2!"
I would like to get the two characters by operating directly on %%a,
i.e. without creating the intermediate variable _string.
Possible?
batch-file for-loop variables
It works.
:: %%a is output of FOR loop in batch:
set _string=%%a
:: First two chars:
set "_two=!_string:~0,2!"
I would like to get the two characters by operating directly on %%a,
i.e. without creating the intermediate variable _string.
Possible?
batch-file for-loop variables
batch-file for-loop variables
edited Nov 24 '18 at 2:46
ImaginaryHuman072889
3,4183732
3,4183732
asked Nov 24 '18 at 2:33
displaynamedisplayname
103
103
1
TheFOR
variable only works within the scope of theFOR
command. You have noFOR
command in your code. Please take the Tour. Learn how to ask a good question. And also read, How to create a Minimal, Complete, and Verifiable example.
– Squashman
Nov 24 '18 at 2:49
2
To answer your question. You can only do string manipulation on Environmental Variables. Meta-Variables from the FOR command or command line arguments cannot be manipulated directly.
– Squashman
Nov 24 '18 at 3:05
@Squashman, you saw, upon reconsideration, that my question is a good question, then answered according, for which I thank you. Exactly what I wanted to know.
– displayname
Nov 25 '18 at 18:14
add a comment |
1
TheFOR
variable only works within the scope of theFOR
command. You have noFOR
command in your code. Please take the Tour. Learn how to ask a good question. And also read, How to create a Minimal, Complete, and Verifiable example.
– Squashman
Nov 24 '18 at 2:49
2
To answer your question. You can only do string manipulation on Environmental Variables. Meta-Variables from the FOR command or command line arguments cannot be manipulated directly.
– Squashman
Nov 24 '18 at 3:05
@Squashman, you saw, upon reconsideration, that my question is a good question, then answered according, for which I thank you. Exactly what I wanted to know.
– displayname
Nov 25 '18 at 18:14
1
1
The
FOR
variable only works within the scope of the FOR
command. You have no FOR
command in your code. Please take the Tour. Learn how to ask a good question. And also read, How to create a Minimal, Complete, and Verifiable example.– Squashman
Nov 24 '18 at 2:49
The
FOR
variable only works within the scope of the FOR
command. You have no FOR
command in your code. Please take the Tour. Learn how to ask a good question. And also read, How to create a Minimal, Complete, and Verifiable example.– Squashman
Nov 24 '18 at 2:49
2
2
To answer your question. You can only do string manipulation on Environmental Variables. Meta-Variables from the FOR command or command line arguments cannot be manipulated directly.
– Squashman
Nov 24 '18 at 3:05
To answer your question. You can only do string manipulation on Environmental Variables. Meta-Variables from the FOR command or command line arguments cannot be manipulated directly.
– Squashman
Nov 24 '18 at 3:05
@Squashman, you saw, upon reconsideration, that my question is a good question, then answered according, for which I thank you. Exactly what I wanted to know.
– displayname
Nov 25 '18 at 18:14
@Squashman, you saw, upon reconsideration, that my question is a good question, then answered according, for which I thank you. Exactly what I wanted to know.
– displayname
Nov 25 '18 at 18:14
add a comment |
1 Answer
1
active
oldest
votes
It is possible without creating an intermediate variable, but without putting an actual task to your request, the solution may not be as EZ
as the examples below, which utilise PowerShell
:
Batch file example:
@For %%A In ("ezrine") Do @PowerShell "('%%A').SubString(0,2)"
@Pause
…and at the command prompt:
For %A In ("ezrine") Do @PowerShell "('%A').SubString(0,2)"
You can even do other things, like forcing upper case output:
@For %%A In ("ezrine") Do @PowerShell "('%%A').SubString(0,2).ToUpper()"
@Pause
Without knowing the environment the batch runs in, I*d include-NoP -C
for-NoProfile -Command
. In higher PowerShell versions (admittedly PowerShell 6 core) the positional parameter 0 changes from -Command to -File.
– LotPings
Nov 24 '18 at 15:35
1
@LotPings, I would probably use-NoP
too, but the question was about the possibility so I provided only what was necessary to prove it possible. Had the OP have provided more information, I would have considered doing so too!
– Compo
Nov 24 '18 at 15:57
@Compo, a great bonus to know that I can use PS commands in Batch shell. And I did apply your example to my script.
– displayname
Nov 25 '18 at 18:14
@displayname, it would be appreciated were you to mark my answer as accepted, by clicking on the large check mark to its left.
– Compo
Nov 25 '18 at 19:17
Ah, so that's how it works. Ok, did it. Is there a way to give some kinda credit to Squashman?
– displayname
Nov 26 '18 at 21:02
|
show 1 more comment
Your Answer
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
It is possible without creating an intermediate variable, but without putting an actual task to your request, the solution may not be as EZ
as the examples below, which utilise PowerShell
:
Batch file example:
@For %%A In ("ezrine") Do @PowerShell "('%%A').SubString(0,2)"
@Pause
…and at the command prompt:
For %A In ("ezrine") Do @PowerShell "('%A').SubString(0,2)"
You can even do other things, like forcing upper case output:
@For %%A In ("ezrine") Do @PowerShell "('%%A').SubString(0,2).ToUpper()"
@Pause
Without knowing the environment the batch runs in, I*d include-NoP -C
for-NoProfile -Command
. In higher PowerShell versions (admittedly PowerShell 6 core) the positional parameter 0 changes from -Command to -File.
– LotPings
Nov 24 '18 at 15:35
1
@LotPings, I would probably use-NoP
too, but the question was about the possibility so I provided only what was necessary to prove it possible. Had the OP have provided more information, I would have considered doing so too!
– Compo
Nov 24 '18 at 15:57
@Compo, a great bonus to know that I can use PS commands in Batch shell. And I did apply your example to my script.
– displayname
Nov 25 '18 at 18:14
@displayname, it would be appreciated were you to mark my answer as accepted, by clicking on the large check mark to its left.
– Compo
Nov 25 '18 at 19:17
Ah, so that's how it works. Ok, did it. Is there a way to give some kinda credit to Squashman?
– displayname
Nov 26 '18 at 21:02
|
show 1 more comment
It is possible without creating an intermediate variable, but without putting an actual task to your request, the solution may not be as EZ
as the examples below, which utilise PowerShell
:
Batch file example:
@For %%A In ("ezrine") Do @PowerShell "('%%A').SubString(0,2)"
@Pause
…and at the command prompt:
For %A In ("ezrine") Do @PowerShell "('%A').SubString(0,2)"
You can even do other things, like forcing upper case output:
@For %%A In ("ezrine") Do @PowerShell "('%%A').SubString(0,2).ToUpper()"
@Pause
Without knowing the environment the batch runs in, I*d include-NoP -C
for-NoProfile -Command
. In higher PowerShell versions (admittedly PowerShell 6 core) the positional parameter 0 changes from -Command to -File.
– LotPings
Nov 24 '18 at 15:35
1
@LotPings, I would probably use-NoP
too, but the question was about the possibility so I provided only what was necessary to prove it possible. Had the OP have provided more information, I would have considered doing so too!
– Compo
Nov 24 '18 at 15:57
@Compo, a great bonus to know that I can use PS commands in Batch shell. And I did apply your example to my script.
– displayname
Nov 25 '18 at 18:14
@displayname, it would be appreciated were you to mark my answer as accepted, by clicking on the large check mark to its left.
– Compo
Nov 25 '18 at 19:17
Ah, so that's how it works. Ok, did it. Is there a way to give some kinda credit to Squashman?
– displayname
Nov 26 '18 at 21:02
|
show 1 more comment
It is possible without creating an intermediate variable, but without putting an actual task to your request, the solution may not be as EZ
as the examples below, which utilise PowerShell
:
Batch file example:
@For %%A In ("ezrine") Do @PowerShell "('%%A').SubString(0,2)"
@Pause
…and at the command prompt:
For %A In ("ezrine") Do @PowerShell "('%A').SubString(0,2)"
You can even do other things, like forcing upper case output:
@For %%A In ("ezrine") Do @PowerShell "('%%A').SubString(0,2).ToUpper()"
@Pause
It is possible without creating an intermediate variable, but without putting an actual task to your request, the solution may not be as EZ
as the examples below, which utilise PowerShell
:
Batch file example:
@For %%A In ("ezrine") Do @PowerShell "('%%A').SubString(0,2)"
@Pause
…and at the command prompt:
For %A In ("ezrine") Do @PowerShell "('%A').SubString(0,2)"
You can even do other things, like forcing upper case output:
@For %%A In ("ezrine") Do @PowerShell "('%%A').SubString(0,2).ToUpper()"
@Pause
answered Nov 24 '18 at 12:25
CompoCompo
15.7k3926
15.7k3926
Without knowing the environment the batch runs in, I*d include-NoP -C
for-NoProfile -Command
. In higher PowerShell versions (admittedly PowerShell 6 core) the positional parameter 0 changes from -Command to -File.
– LotPings
Nov 24 '18 at 15:35
1
@LotPings, I would probably use-NoP
too, but the question was about the possibility so I provided only what was necessary to prove it possible. Had the OP have provided more information, I would have considered doing so too!
– Compo
Nov 24 '18 at 15:57
@Compo, a great bonus to know that I can use PS commands in Batch shell. And I did apply your example to my script.
– displayname
Nov 25 '18 at 18:14
@displayname, it would be appreciated were you to mark my answer as accepted, by clicking on the large check mark to its left.
– Compo
Nov 25 '18 at 19:17
Ah, so that's how it works. Ok, did it. Is there a way to give some kinda credit to Squashman?
– displayname
Nov 26 '18 at 21:02
|
show 1 more comment
Without knowing the environment the batch runs in, I*d include-NoP -C
for-NoProfile -Command
. In higher PowerShell versions (admittedly PowerShell 6 core) the positional parameter 0 changes from -Command to -File.
– LotPings
Nov 24 '18 at 15:35
1
@LotPings, I would probably use-NoP
too, but the question was about the possibility so I provided only what was necessary to prove it possible. Had the OP have provided more information, I would have considered doing so too!
– Compo
Nov 24 '18 at 15:57
@Compo, a great bonus to know that I can use PS commands in Batch shell. And I did apply your example to my script.
– displayname
Nov 25 '18 at 18:14
@displayname, it would be appreciated were you to mark my answer as accepted, by clicking on the large check mark to its left.
– Compo
Nov 25 '18 at 19:17
Ah, so that's how it works. Ok, did it. Is there a way to give some kinda credit to Squashman?
– displayname
Nov 26 '18 at 21:02
Without knowing the environment the batch runs in, I*d include
-NoP -C
for -NoProfile -Command
. In higher PowerShell versions (admittedly PowerShell 6 core) the positional parameter 0 changes from -Command to -File.– LotPings
Nov 24 '18 at 15:35
Without knowing the environment the batch runs in, I*d include
-NoP -C
for -NoProfile -Command
. In higher PowerShell versions (admittedly PowerShell 6 core) the positional parameter 0 changes from -Command to -File.– LotPings
Nov 24 '18 at 15:35
1
1
@LotPings, I would probably use
-NoP
too, but the question was about the possibility so I provided only what was necessary to prove it possible. Had the OP have provided more information, I would have considered doing so too!– Compo
Nov 24 '18 at 15:57
@LotPings, I would probably use
-NoP
too, but the question was about the possibility so I provided only what was necessary to prove it possible. Had the OP have provided more information, I would have considered doing so too!– Compo
Nov 24 '18 at 15:57
@Compo, a great bonus to know that I can use PS commands in Batch shell. And I did apply your example to my script.
– displayname
Nov 25 '18 at 18:14
@Compo, a great bonus to know that I can use PS commands in Batch shell. And I did apply your example to my script.
– displayname
Nov 25 '18 at 18:14
@displayname, it would be appreciated were you to mark my answer as accepted, by clicking on the large check mark to its left.
– Compo
Nov 25 '18 at 19:17
@displayname, it would be appreciated were you to mark my answer as accepted, by clicking on the large check mark to its left.
– Compo
Nov 25 '18 at 19:17
Ah, so that's how it works. Ok, did it. Is there a way to give some kinda credit to Squashman?
– displayname
Nov 26 '18 at 21:02
Ah, so that's how it works. Ok, did it. Is there a way to give some kinda credit to Squashman?
– displayname
Nov 26 '18 at 21:02
|
show 1 more comment
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1
The
FOR
variable only works within the scope of theFOR
command. You have noFOR
command in your code. Please take the Tour. Learn how to ask a good question. And also read, How to create a Minimal, Complete, and Verifiable example.– Squashman
Nov 24 '18 at 2:49
2
To answer your question. You can only do string manipulation on Environmental Variables. Meta-Variables from the FOR command or command line arguments cannot be manipulated directly.
– Squashman
Nov 24 '18 at 3:05
@Squashman, you saw, upon reconsideration, that my question is a good question, then answered according, for which I thank you. Exactly what I wanted to know.
– displayname
Nov 25 '18 at 18:14