In order to process input using < & output using > in command line what does the code need to look like
I have looked in many places but have not seen the specific answer regarding the use of < > in a command line prompt and what the code would be to use the input file and then send the output to the name specified. I have to use the command line and I have arguments to pass which I coded just fine but I am truly confused on how the program reads in said file and outs new file. I have to use standard input/output which I get that I am supposed to have a getline to read in the data.
I'm thinking there should be something more than that. How do I call it in to use because surely I would not be limited in my input to just the file so what do I use in my code that says this is what I want you to read and then output to said file.
in other words command line like this
Does the name of the file become argv3 and then the output argv4 and I code it like I do my other arguments or is there a specific thing besides using getline and cout which have to be used mind you that I have to add to it. I have tried things and keep getting a cant find file specified (trust me it is there!) which is why I figure there is something specific besides I'm thinking with my little programming knowledge that it would need to be specified some more direct way than just cout or cin basically.
I can't get past it and its a critical factor to finish the rest of my program so any help would be so appreciated! Thanks in advance and if I'm just being a moron please feel free to tell me so!
I'm thinking there should be something more than that. How do I call it in to use because surely I would not be limited in my input to just the file so what do I use in my code that says this is what I want you to read and then output to said file.
in other words command line like this
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Does the name of the file become argv3 and then the output argv4 and I code it like I do my other arguments or is there a specific thing besides using getline and cout which have to be used mind you that I have to add to it. I have tried things and keep getting a cant find file specified (trust me it is there!) which is why I figure there is something specific besides I'm thinking with my little programming knowledge that it would need to be specified some more direct way than just cout or cin basically.
I can't get past it and its a critical factor to finish the rest of my program so any help would be so appreciated! Thanks in advance and if I'm just being a moron please feel free to tell me so!
As I understand it, the shell handles the piping so they are not command line arguments your program can see at all; you would access them using standard input/output files/streams.
So if you used getline() on cin inside programName, it would be reading from sometextfile.txt. And writing to cout would write to somenewtextfile.txt.
So if you used getline() on cin inside programName, it would be reading from sometextfile.txt. And writing to cout would write to somenewtextfile.txt.
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