basically I'm trying to figure this out. when you do
myprog text1
usually in the argv[1] = "text1; or at least points to it but if i do
myprog < text1
there isnt any argv[1] to get "text1" so is there a way to get that string of characters for "text1" when Im redirecting on the console line.
you can use this way myporg <<< "text1"
It will pass the text1 string to that program as a input.
Well im required to use it with 1 < redirection so is there any other suggestions
Do you want redirection symbol as the input of your program.
Ex:
myprog \< text1
argv[1]="<"
argv[2]="text1"
If I understood wrongly correct me
Last edited by sganesh; 03-03-2010 at 12:42 AM.
redirection (< , >) , pipes ( | ) and all the way of input and output designed by the terminal itself for making easy the input and
output operation, C cannot do any thing in that, so we cannot get the "<filename " in argv ,
not only in argv but any other way in C.
Last edited by Alexander jack; 03-03-2010 at 12:46 AM.
If you want to pass the command line value as < filename ( normal input with out redirection )
then you can use double quotes or escape character
for ex :
$ a.out "<" filename # this cannot redirect the file but take the "< filename " as pure strings
or
$ a.out \< filename # this cannot redirect the file but take the "< filename " as pure strings
myprog < text1 will redirect a file called text1 to stdin of myprog.Originally Posted by kiros88
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