I keep coming here to ask questions, and I really feel embarrassed! - China DOS Union Forum

Re myauto: Judging purely from your description, it is impossible to get enough constraints. For example, if we take “extract 2004121606.014 and assign it to a variable” literally, it does not seem to mean much, because it would seem that just set var=2004121606.014 would be enough. But what you clearly mean is not that, so please consider the following questions and provide appropriate constraints.
How is your text line determined? Is it determined before running by a user looking at the output, or during runtime by the program analyzing the output? What characteristics does your text line have? Is it simply a numeric line, or are there other characteristic strings before and after the number? What kind of information do you want to extract from the text line? The whole line of text, or just the numeric information, non-numeric information, or some other distributed information? This is the kind of information that should be provided when asking this sort of question. If there are other issues you think are necessary, please explain them in advance as well, because differences in this information can lead to very large differences in the solution program. And for batch files, handling a specific problem is always easier than handling a whole class of problems. If you want a general-purpose program, please also consider beforehand the cost of writing such a program, including a long wait, imperfect code, or even ending up with nothing.

Floor1　myauto	Posted 2004-12-17 00:00
初级用户　Posts 5　Credits 118
I ran into a problem. I have a text file, and it looks like this: 2004121506.003 2004121606.014 Now I want to take one line from this text file, for example 2004121606.014, and then assign it to a variable. How do I do that?

Floor2　willsort	Posted 2004-12-17 00:00
元老会员　Posts 1,512　Credits 4,432
Re myauto: Judging purely from your description, it is impossible to get enough constraints. For example, if we take “extract 2004121606.014 and assign it to a variable” literally, it does not seem to mean much, because it would seem that just set var=2004121606.014 would be enough. But what you clearly mean is not that, so please consider the following questions and provide appropriate constraints. How is your text line determined? Is it determined before running by a user looking at the output, or during runtime by the program analyzing the output? What characteristics does your text line have? Is it simply a numeric line, or are there other characteristic strings before and after the number? What kind of information do you want to extract from the text line? The whole line of text, or just the numeric information, non-numeric information, or some other distributed information? This is the kind of information that should be provided when asking this sort of question. If there are other issues you think are necessary, please explain them in advance as well, because differences in this information can lead to very large differences in the solution program. And for batch files, handling a specific problem is always easier than handling a whole class of problems. If you want a general-purpose program, please also consider beforehand the cost of writing such a program, including a long wait, imperfect code, or even ending up with nothing.

Floor3　wolfkin	Posted 2004-12-26 00:00
初级用户　Posts 18　Credits 148
Use the for command. For the specific usage, you can look online for a detailed introduction to for.

Floor4　ultralqxq	Posted 2004-12-29 00:00
初级用户　Posts 27　Credits 165
The OP's question sounds like he's being deliberately mysterious. Why not say why you want to “take one line from this text file, for example 2004121606.014, and then assign it to a variable”? What is the purpose? With such an irresponsible way of asking the question, it is almost impossible to get a correct answer!!