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windows - What does ComSpec mean? - Super User %COMSPEC% does stand for Command Specifier, and it "specifies" the command interpreter, which by default is cmd exe in NT systems, and COMMAND COM in DOS systems
COMSPEC - Wikipedia COMSPEC or ComSpec is one of the environment variables used in DOS, OS 2 and Windows, which normally points to the command line interpreter, which is by default COMMAND COM in DOS, [1] Windows 95, 98, and ME or CMD EXE in OS 2 and Windows NT
start %comspec% c script. cmd vs start cmd C script. cmd %comspec% just points to cmd exe, so both commands will do the same thing Other than that C is correct, this will close the command prompt after execution The difference is that "%comspec%" should expand to the default command interpreter, whereas "cmd" searches for a cmd executable and invokes it Most of the time they are the same
COMSPEC environment variable - DOS Command Prompt Reference ‘COMSPEC’ environment variable contains the path to the command interpreter program such as Command com and Cmd exe The system uses this value for displaying the prompt and for the interpreter program for batch file execution
Environment Variables in Windows 10 | Tutorials - Ten Forums Environment variables are a set of dynamic named values that can affect the way running processes will behave on a computer The variables can be used both in scripts and on the command line
COMMAND. COM, SHELL and COMSPEC COMSPEC specifies the secondary command interpreter This need not be COMMAND COM One example of a different command interpreter is JP Software's 4DOS COM Replace COMMAND C with %COMSPEC% C if you do not know for sure which command interpreter will be used
Definition of ComSpec | PCMag What does ComSpec actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia
Is there a difference between %comspec% and cmd %comspec% is a system variable that simply points to cmd exe so typing either runs cmd exe the reason it is there is to allow better programming access to the cmd exe program, if you need to move the location of the cmd program then a simple change of the variable should allow correctly written applications to continue to work
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c - What should COMSPEC and PATH environmental variables be to locate . . . In windows (System->Environmental Variables), COMSPEC contains the path to cmd exe PATH does not What should PATH be? Other than this, not sure why it can not find the interpreter Any suggestions are appreciated Thanks if( system("tail -500 log txt") == -1) { Error calling tail exe on log errno is a system macro that expands int returning