Dynamic sub-string in batch file
1
Code Excerpt of my batch file:
set stringOne=ABCDEF
echo %stringOne:~2,3%
This output is CDE
How can I dynamically echo the output for my start index and desired output length?
set stringOne=ABCDEF
set start=2
set len=3
batch-file substring echo
edited Nov 25 '18 at 18:23
double-beep
2,75741028
asked Nov 25 '18 at 13:09
arkeyararkeyar
82
add a comment |
1
Code Excerpt of my batch file:
set stringOne=ABCDEF
echo %stringOne:~2,3%
This output is CDE
How can I dynamically echo the output for my start index and desired output length?
set stringOne=ABCDEF
set start=2
set len=3
batch-file substring echo
edited Nov 25 '18 at 18:23
double-beep
2,75741028
asked Nov 25 '18 at 13:09
arkeyararkeyar
82
This type of management is described at this answer, although the topic is different...
– Aacini
Nov 26 '18 at 3:08
add a comment |
1
1
1
Code Excerpt of my batch file:
set stringOne=ABCDEF
echo %stringOne:~2,3%
This output is CDE
How can I dynamically echo the output for my start index and desired output length?
set stringOne=ABCDEF
set start=2
set len=3
batch-file substring echo
edited Nov 25 '18 at 18:23
double-beep
2,75741028
asked Nov 25 '18 at 13:09
arkeyararkeyar
82
Code Excerpt of my batch file:
set stringOne=ABCDEF
echo %stringOne:~2,3%
This output is CDE
How can I dynamically echo the output for my start index and desired output length?
set stringOne=ABCDEF
set start=2
set len=3
batch-file substring echo
batch-file substring echo
edited Nov 25 '18 at 18:23
double-beep
2,75741028
asked Nov 25 '18 at 13:09
arkeyararkeyar
82
edited Nov 25 '18 at 18:23
double-beep
2,75741028
asked Nov 25 '18 at 13:09
arkeyararkeyar
82
edited Nov 25 '18 at 18:23
double-beep
2,75741028
edited Nov 25 '18 at 18:23
double-beep
2,75741028
edited Nov 25 '18 at 18:23
double-beep
2,75741028
2,75741028
asked Nov 25 '18 at 13:09
arkeyararkeyar
82
asked Nov 25 '18 at 13:09
arkeyararkeyar
82
asked Nov 25 '18 at 13:09
arkeyararkeyar
82
82
This type of management is described at this answer, although the topic is different...
– Aacini
Nov 26 '18 at 3:08
add a comment |
This type of management is described at this answer, although the topic is different...
– Aacini
Nov 26 '18 at 3:08
This type of management is described at this answer, although the topic is different...
– Aacini
Nov 26 '18 at 3:08
This type of management is described at this answer, although the topic is different...
– Aacini
Nov 26 '18 at 3:08
add a comment |
1 Answer
1
active
oldest
votes
1
you need two layers of variable expansion. That can be done by delayed expansion or by call:
@echo off
setlocal enabledelayedexpansion
set "string=ABCDEFGH"
set "start=2"
set "len=3"
echo A with delayed expansion: !string:~%start%,%len%!
call echo A with using 'call': %%string:~%start%,%len%%%
FOR /F %%G IN ('dir /b "%~f0"') DO (
set /A "newStart=!Start!+2"
call echo B with 'call' and delayed : %%string:~!newStart!,!len!%%
call call echo B with double-'call': %%%%string:~%%newStart%%,%len%%%%%
)
FOR /F %%G IN ('dir /b "%~f0"') DO call :output
goto :eof
:output
set /A "newStart=Start+2"
echo C with subroutine and delayed expansion: !string:~%newStart%,%len%!
call echo C with subroutine andusing 'call': %%string:~%newStart%,%len%%%
goto :eof
EDITED to match your comment. You need a third layer of expansion. I expanded the code with some different methods.
(btw: please don't post code in comments, it's nearly impossible to read. And if your question changes, better ask a follow-up question next time)
answered Nov 25 '18 at 13:55
StephanStephan
35.9k43457
with delayed expansion: CDE with using 'call': CDE But, setlocal enabledelayedexpansion set "string=ABCDEFG" set "start=2" set "len=3" FOR /F %%G IN ('dir /b *.txt') DO ( set "fileName=%%G" set /A "newStart=!Start!+2" echo !newStart! echo with delayed expansion: !string:~%newStart%,%len%! call echo with using 'call': %%string:~%newStart%,%len%%% ) O/P 4 with delayed expansion: ABC (instead of EFG) with using 'call': ABC (instead of EFG) How I will be able to get the output EFG ?
– arkeyar
Nov 25 '18 at 16:15
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
1
you need two layers of variable expansion. That can be done by delayed expansion or by call:
@echo off
setlocal enabledelayedexpansion
set "string=ABCDEFGH"
set "start=2"
set "len=3"
echo A with delayed expansion: !string:~%start%,%len%!
call echo A with using 'call': %%string:~%start%,%len%%%
FOR /F %%G IN ('dir /b "%~f0"') DO (
set /A "newStart=!Start!+2"
call echo B with 'call' and delayed : %%string:~!newStart!,!len!%%
call call echo B with double-'call': %%%%string:~%%newStart%%,%len%%%%%
)
FOR /F %%G IN ('dir /b "%~f0"') DO call :output
goto :eof
:output
set /A "newStart=Start+2"
echo C with subroutine and delayed expansion: !string:~%newStart%,%len%!
call echo C with subroutine andusing 'call': %%string:~%newStart%,%len%%%
goto :eof
EDITED to match your comment. You need a third layer of expansion. I expanded the code with some different methods.
(btw: please don't post code in comments, it's nearly impossible to read. And if your question changes, better ask a follow-up question next time)
answered Nov 25 '18 at 13:55
StephanStephan
35.9k43457
with delayed expansion: CDE with using 'call': CDE But, setlocal enabledelayedexpansion set "string=ABCDEFG" set "start=2" set "len=3" FOR /F %%G IN ('dir /b *.txt') DO ( set "fileName=%%G" set /A "newStart=!Start!+2" echo !newStart! echo with delayed expansion: !string:~%newStart%,%len%! call echo with using 'call': %%string:~%newStart%,%len%%% ) O/P 4 with delayed expansion: ABC (instead of EFG) with using 'call': ABC (instead of EFG) How I will be able to get the output EFG ?
– arkeyar
Nov 25 '18 at 16:15
add a comment |
1
you need two layers of variable expansion. That can be done by delayed expansion or by call:
@echo off
setlocal enabledelayedexpansion
set "string=ABCDEFGH"
set "start=2"
set "len=3"
echo A with delayed expansion: !string:~%start%,%len%!
call echo A with using 'call': %%string:~%start%,%len%%%
FOR /F %%G IN ('dir /b "%~f0"') DO (
set /A "newStart=!Start!+2"
call echo B with 'call' and delayed : %%string:~!newStart!,!len!%%
call call echo B with double-'call': %%%%string:~%%newStart%%,%len%%%%%
)
FOR /F %%G IN ('dir /b "%~f0"') DO call :output
goto :eof
:output
set /A "newStart=Start+2"
echo C with subroutine and delayed expansion: !string:~%newStart%,%len%!
call echo C with subroutine andusing 'call': %%string:~%newStart%,%len%%%
goto :eof
EDITED to match your comment. You need a third layer of expansion. I expanded the code with some different methods.
(btw: please don't post code in comments, it's nearly impossible to read. And if your question changes, better ask a follow-up question next time)
answered Nov 25 '18 at 13:55
StephanStephan
35.9k43457
with delayed expansion: CDE with using 'call': CDE But, setlocal enabledelayedexpansion set "string=ABCDEFG" set "start=2" set "len=3" FOR /F %%G IN ('dir /b *.txt') DO ( set "fileName=%%G" set /A "newStart=!Start!+2" echo !newStart! echo with delayed expansion: !string:~%newStart%,%len%! call echo with using 'call': %%string:~%newStart%,%len%%% ) O/P 4 with delayed expansion: ABC (instead of EFG) with using 'call': ABC (instead of EFG) How I will be able to get the output EFG ?
– arkeyar
Nov 25 '18 at 16:15
add a comment |
1
1
1
you need two layers of variable expansion. That can be done by delayed expansion or by call:
@echo off
setlocal enabledelayedexpansion
set "string=ABCDEFGH"
set "start=2"
set "len=3"
echo A with delayed expansion: !string:~%start%,%len%!
call echo A with using 'call': %%string:~%start%,%len%%%
FOR /F %%G IN ('dir /b "%~f0"') DO (
set /A "newStart=!Start!+2"
call echo B with 'call' and delayed : %%string:~!newStart!,!len!%%
call call echo B with double-'call': %%%%string:~%%newStart%%,%len%%%%%
)
FOR /F %%G IN ('dir /b "%~f0"') DO call :output
goto :eof
:output
set /A "newStart=Start+2"
echo C with subroutine and delayed expansion: !string:~%newStart%,%len%!
call echo C with subroutine andusing 'call': %%string:~%newStart%,%len%%%
goto :eof
EDITED to match your comment. You need a third layer of expansion. I expanded the code with some different methods.
(btw: please don't post code in comments, it's nearly impossible to read. And if your question changes, better ask a follow-up question next time)
answered Nov 25 '18 at 13:55
StephanStephan
35.9k43457
you need two layers of variable expansion. That can be done by delayed expansion or by call:
@echo off
setlocal enabledelayedexpansion
set "string=ABCDEFGH"
set "start=2"
set "len=3"
echo A with delayed expansion: !string:~%start%,%len%!
call echo A with using 'call': %%string:~%start%,%len%%%
FOR /F %%G IN ('dir /b "%~f0"') DO (
set /A "newStart=!Start!+2"
call echo B with 'call' and delayed : %%string:~!newStart!,!len!%%
call call echo B with double-'call': %%%%string:~%%newStart%%,%len%%%%%
)
FOR /F %%G IN ('dir /b "%~f0"') DO call :output
goto :eof
:output
set /A "newStart=Start+2"
echo C with subroutine and delayed expansion: !string:~%newStart%,%len%!
call echo C with subroutine andusing 'call': %%string:~%newStart%,%len%%%
goto :eof
EDITED to match your comment. You need a third layer of expansion. I expanded the code with some different methods.
(btw: please don't post code in comments, it's nearly impossible to read. And if your question changes, better ask a follow-up question next time)
answered Nov 25 '18 at 13:55
StephanStephan
35.9k43457
edited Nov 25 '18 at 17:48
answered Nov 25 '18 at 13:55
StephanStephan
35.9k43457
answered Nov 25 '18 at 13:55
StephanStephan
35.9k43457
answered Nov 25 '18 at 13:55
StephanStephan
35.9k43457
35.9k43457
with delayed expansion: CDE with using 'call': CDE But, setlocal enabledelayedexpansion set "string=ABCDEFG" set "start=2" set "len=3" FOR /F %%G IN ('dir /b *.txt') DO ( set "fileName=%%G" set /A "newStart=!Start!+2" echo !newStart! echo with delayed expansion: !string:~%newStart%,%len%! call echo with using 'call': %%string:~%newStart%,%len%%% ) O/P 4 with delayed expansion: ABC (instead of EFG) with using 'call': ABC (instead of EFG) How I will be able to get the output EFG ?
– arkeyar
Nov 25 '18 at 16:15
add a comment |
with delayed expansion: CDE with using 'call': CDE But, setlocal enabledelayedexpansion set "string=ABCDEFG" set "start=2" set "len=3" FOR /F %%G IN ('dir /b *.txt') DO ( set "fileName=%%G" set /A "newStart=!Start!+2" echo !newStart! echo with delayed expansion: !string:~%newStart%,%len%! call echo with using 'call': %%string:~%newStart%,%len%%% ) O/P 4 with delayed expansion: ABC (instead of EFG) with using 'call': ABC (instead of EFG) How I will be able to get the output EFG ?
– arkeyar
Nov 25 '18 at 16:15
with delayed expansion: CDE with using 'call': CDE But, setlocal enabledelayedexpansion set "string=ABCDEFG" set "start=2" set "len=3" FOR /F %%G IN ('dir /b *.txt') DO ( set "fileName=%%G" set /A "newStart=!Start!+2" echo !newStart! echo with delayed expansion: !string:~%newStart%,%len%! call echo with using 'call': %%string:~%newStart%,%len%%% ) O/P 4 with delayed expansion: ABC (instead of EFG) with using 'call': ABC (instead of EFG) How I will be able to get the output EFG ?
– arkeyar
Nov 25 '18 at 16:15
with delayed expansion: CDE with using 'call': CDE But, setlocal enabledelayedexpansion set "string=ABCDEFG" set "start=2" set "len=3" FOR /F %%G IN ('dir /b *.txt') DO ( set "fileName=%%G" set /A "newStart=!Start!+2" echo !newStart! echo with delayed expansion: !string:~%newStart%,%len%! call echo with using 'call': %%string:~%newStart%,%len%%% ) O/P 4 with delayed expansion: ABC (instead of EFG) with using 'call': ABC (instead of EFG) How I will be able to get the output EFG ?
– arkeyar
Nov 25 '18 at 16:15
add a comment |
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This type of management is described at this answer, although the topic is different...
– Aacini
Nov 26 '18 at 3:08