Hi there,
Can someone help me with this? I am trying to run a DOS commad as dir but I need it to be done using another way rather than --> system("dir")
Also, I want to catch the error message that come out from running any tool or command ( but not the standard commands as dir) , for example , I have the gzip and when I run it for a crashed file it gives me on the console a message stating what is the error , how can I catch this error ?
Thanks
Ossama F.
22  6962   AdrianH 1,251
Recognized Expert Top Contributor
Hi there,
Can someone help me with this? I am trying to run a DOS commad as dir but I need it to be done using another way rather than --> system("dir")
Also, I want to catch the error message that come out from running any tool or command ( but not the standard commands as dir) , for example , I have the gzip and when I run it for a crashed file it gives me on the console a message stating what is the error , how can I catch this error ?
Thanks
Ossama F.
I'm not sure, but I think this is better in the .NET forum. However, why do you want something other than system("dir"), so that you can grab the output from the execution?
If so, then fork() comes to mind. But its been a while. You would have to close the stdout and stderr file handles (not the FILE descriptors) open 2 pipes and then by using dup() on those two pipes to replace the closed stdout and stderr handles. The FILE descriptors will then be redirected to the pipes which would be accessable by both child and parent process since the child inheirits those handles.
See: Hope this helps,
Adrian
Motoma 3,237
Recognized Expert Specialist
Quick question: what OS are you trying to code this for?
AdrianH 1,251
Recognized Expert Top Contributor
Quick question: what OS are you trying to code this for?
Shouldn't matter, Windoze is POSIX compliant. :)
Adrian
Motoma 3,237
Recognized Expert Specialist
Shouldn't matter, Windoze is POSIX compliant. :)
Adrian
Windows doesn't have an 1:1 equivalent of fork() however...And I'm not sure about dup() or pipe() either.
AdrianH 1,251
Recognized Expert Top Contributor
Windows doesn't have an 1:1 equivalent of fork() however...And I'm not sure about dup() or pipe() either.
Awww, your throwing cold water on my fun. :(
I really think since this user is referring to the CLR, this should be moved to the .NET forum.
Adrian
My OS is windows. Actually , I always run the DOS commands through system ( ) but I have some tools as gzip and I want to catch the error messages from the console. I need it to be done in .NET if that possible ?
Motoma 3,237
Recognized Expert Specialist
Awww, your throwing cold water on my fun. :(
I really think since this user is referring to the CLR, this should be moved to the .NET forum.
Adrian
Awww...I saw the words DOS and CLR and interpreted it as CLI :P Being in the C/C++ forum pushed me to that idea as well.
Perhaps, Ofanek, if you could tell us what language you are using, we will be able to settle this little dispute, and land you in the correct forum.
AdrianH 1,251
Recognized Expert Top Contributor
Awww...I saw the words DOS and CLR and interpreted it as CLI :p Being in the C/C++ forum pushed me to that idea as well.
Perhaps, Ofanek, if you could tell us what language you are using, we will be able to settle this little dispute, and land you in the correct forum.
CLI can still refer to .NET (Common Language Infastructure)
Adrian
Motoma 3,237
Recognized Expert Specialist
CLI can still refer to .NET (Common Language Infastructure)
Adrian
It can also mean Command Line Interface.
P.S. Gonna hit 100 on this thread?
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