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windows C system call with spaces in command


windows C system call with spaces in command

By : user3865474
Date : January 10 2021, 01:57 PM
Hope that helps Edit: OK, figured it out by stepping into the system() call: you need an extra set of quotes around the whole thing due the fact that it internally calls cmd /c yourinput
So this works for me:
code :


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Why is Perl system call failing to invoke internal Windows command?

Why is Perl system call failing to invoke internal Windows command?


By : Aykut Hacıoğlu
Date : March 29 2020, 07:55 AM
With these it helps You probably have Cygwin installed and dir.exe is in your path which is not the cmd.exe built-in but an alias to ls.
code :
C:\> which dir
/usr/bin/dir

C:\> c:\opt\cygwin\bin\dir.exe --version
dir (GNU coreutils) 8.15
Packaged by Cygwin (8.15-1)
…

C:\> dir /b
…

C:\> perl -e "print `dir /b`"
dir: cannot access /b: No such file or directory

C:\> perl -e "print `cmd /c dir /b`"
…
awk system command with spaces in parameters

awk system command with spaces in parameters


By : goto100
Date : March 29 2020, 07:55 AM
help you fix your problem What is awk's role in this? Perhaps you should let find execute things itself.
code :
find . -name \*.pdf -exec /path/to/pdftotext {} \;
find . -name \*.pdf -print | awk '{cmd=sprintf("pdftotext \"%s\"", $0);system(cmd);}'
Ruby system call (on windows) without a popup command prompt

Ruby system call (on windows) without a popup command prompt


By : Harold
Date : March 29 2020, 07:55 AM
will be helpful for those in need I ended up going with the win32-open3 gem. Because fork isn't implemented on windows systems you can't use the built in open3 and you'll need to do a
code :
gem install win32-open3
C++ system() command path with spaces

C++ system() command path with spaces


By : user7413215
Date : March 29 2020, 07:55 AM
I hope this helps you . Ask yourself: how would you execute this command, yourself, from a shell prompt?
code :
$ ls -la /home/testuser/this is a folder/test/
$ ls -la "/home/testuser/this is a folder/test/"
std::string command = "ls -la \"/home/testuser/this is a folder/test/\"";
call windows system command through fortran without showing the shell window and output the result to an external file

call windows system command through fortran without showing the shell window and output the result to an external file


By : user2261060
Date : March 29 2020, 07:55 AM
it helps some times You also posted this at the Intel forum and user Paul Curtis replied with an example of how to get the MAC address directly using the Windows API.
Since StackOverflow prefers answers that aren't just links, I've included the code below.
code :
MODULE MAC  
    USE ifwinty  
    USE charfunc
    IMPLICIT NONE 
    PUBLIC GetMacInfo       !, PortExists
    PRIVATE
    SAVE

    INTEGER, PARAMETER :: MAX_ADAPTER_DESCRIPTION_LENGTH = 128  
    INTEGER, PARAMETER :: MAX_ADAPTER_NAME_LENGTH        = 256  
    INTEGER, PARAMETER :: MAX_ADAPTER_ADDRESS_LENGTH     =   8  
    INTEGER, PARAMETER :: MIB_IF_TYPE_ETHERNET           =   6  ! Ipifcons.h

    TYPE IP_ADDRESS_STRING  
        CHARACTER(LEN=16) :: String  
    END TYPE IP_ADDRESS_STRING

    TYPE IP_MASK_STRING  
        CHARACTER(LEN=16) :: String  
    END TYPE IP_MASK_STRING

    TYPE t_IP_ADDR_STRING   
        INTEGER (LPLONG)         :: pNext  
        TYPE (IP_ADDRESS_STRING) :: IpAddress  
        TYPE (IP_MASK_STRING)    :: IpMask  
        INTEGER (DWORD)          :: Context  
    END TYPE t_IP_ADDR_STRING

    TYPE t_IP_ADAPTER_INFO  
        INTEGER(LPLONG)         :: pNext   
        INTEGER(DWORD)          :: ComboIndex  
        CHARACTER(LEN=MAX_ADAPTER_NAME_LENGTH+4)        :: AdapterName  
        CHARACTER(LEN=MAX_ADAPTER_DESCRIPTION_LENGTH+4) :: Description  
        INTEGER(UINT)           :: AddressLength  
        INTEGER(BYTE)           :: Address(MAX_ADAPTER_ADDRESS_LENGTH)  
        INTEGER(DWORD)          :: Index  
        INTEGER(ULONG)          :: iType  
        INTEGER(ULONG)          :: DhcpEnabled  
        INTEGER(LPLONG)         :: pCurrentIpAddress   
        TYPE(t_IP_ADDR_STRING)  :: IpAddressList  
        TYPE(t_IP_ADDR_STRING)  :: GatewayList  
        TYPE(t_IP_ADDR_STRING)  :: DhcpServer  
        INTEGER(BOOL)           :: HaveWins  
        TYPE(t_IP_ADDR_STRING)  :: PrimaryWinsServer  
        TYPE(t_IP_ADDR_STRING)  :: SecondaryWinsServer  
        INTEGER(ULONG)          :: LeaseObtained  
        INTEGER(ULONG)          :: LeaseExpires  
    END TYPE t_IP_ADAPTER_INFO

    !   must link with IpHlpApi.lib to access this API function;
    !   this interface is not included in ifwinty
    INTERFACE  
        INTEGER(BOOL) FUNCTION GetAdaptersInfo (arg1, arg2)  
            USE ifwinty  
            !DEC$ ATTRIBUTES DEFAULT, STDCALL, DECORATE, ALIAS:'GetAdaptersInfo' :: GetAdaptersInfo  
            INTEGER(LPLONG) :: arg1  
            INTEGER(LPLONG) :: arg2  
        END FUNCTION  
    END INTERFACE

CONTAINS  


    SUBROUTINE GetMacInfo (hwnd, id)
        USE contwrap
        IMPLICIT NONE

        !   dialog window handle and set of static-text IDs for display
        INTEGER(HANDLE), INTENT(IN)         :: hwnd
        INTEGER, INTENT(IN), DIMENSION(4)   :: id 

        CHARACTER(LEN=200)                  :: msg
        INTEGER                             :: i, nc, count
        INTEGER, PARAMETER                  :: acount = 16
        TYPE(t_IP_ADAPTER_INFO),ALLOCATABLE :: ai(:)  

        count = 0

        !   allow for multiple adapters
        ALLOCATE (ai(acount))
        nc = SIZEOF(ai)
        IF (GetAdaptersInfo(LOC(ai), LOC(nc)) == 0) THEN  

            DO i = 1, acount
                SELECT CASE (ai(i)%iType)
                CASE (MIB_IF_TYPE_ETHERNET)

                    !   line 1: description and MAC address
                    !nc = INDEX(ai(i)%Description, CHAR(0)) - 1
                    !WRITE (msg, '(A,",  ",5(Z2.2,"-"),Z2.2)') &
                    !    ai(i)%Description(1:nc),              &
                    !    ai(i)%Address(1:ai(i)%AddressLength)
                    nc = INDEX(ai(i)%Description, CHAR(0))
                    msg = ai(i)%Description(1:nc)
                    count = count + 1
                    CALL StaticSetText (hwnd, id(count), msg)
                    CALL ControlSetVisible (hwnd, id(count), .TRUE.)

                    !   line 2: IP and Gateway addresses
                    WRITE (msg, '("IP Addr: ",A,"  Gateway: ",A)')  &
                        ai(i)%IpAddressList%IpAddress%string,       &
                        ai(i)%GatewayList%IpAddress%string
                    CALL remove_nulls (msg)
                    count = count + 1
                    CALL StaticSetText (hwnd, id(count), msg)
                    CALL ControlSetVisible (hwnd, id(count), .TRUE.)

                    IF (count >= 4) EXIT
                END SELECT
                IF (ai(i)%pNext == NULL) EXIT  
            END DO

        END IF
        DEALLOCATE (ai)

    END SUBROUTINE GetMacInfo

END MODULE MAC
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