使用批处理从文件中提取包含某些单词的行 [英] Extract lines from file with certain words using batch

问题描述

我有一个文件，其中每一行的格式如下:

I have a file where each line has the following format:

1yjo    ASN 1   A   GLN 3   B   8.85

我必须提取每一行，其中第二个标记等于 PHE 和第五个标记等于 LEU 或 反之亦然.例如:

I have to extract each line where the second token is equal to PHE and the fifth token is equal to LEU or vice versa. For example:

2beg    LEU 17  A   VAL 18  C   8.76
2beg    LEU 17  A   PHE 19  A   7.2
2beg    PHE 19  A   ALA 21  B   8.88
2beg    PHE 19  D   LEU 34  E   13.28

如果这是输入文件，我将不得不提取第二行和第四行.最好将它们提取到一个单独的文件中.

If this was the input file, I would have to extract the second and the fourth line. It would be good to extract them to a separate file.

这是我迄今为止尝试过的:

Here's what I've tried so far:

@echo off
set inputfile=a.dat
for /F "tokens=1,2,3,4,5,6,7,8" %%a in (%inputfile%) do (
if %%b == "LEU" and %%e == "PHE" do (
@echo %%b %%e
)
)

...但它只是复制整个输入文件，即 IF 条件没有任何影响...

...but it just copies the entire input file, i.e. the IF condition didn't have any effect...

我也试过:

...
if %%b == "LEU" (
if %%e == "PHE" (
@echo %%a %%b %%c %%d %%e %%f %%g %%h
)
)
...

...它不会复制任何东西.

...and it doesn't copy anything.

我也不太确定我是否可以使用and"和or"运算符，或者我必须使用多个嵌套的 if...

I'm also not so sure if I can use "and" and "or" operators, or I have to do it with multiple nested if's...

我该怎么做?

推荐答案

我刚刚找到了一个解决方案:

I've just found a solution:

@echo off
for /F "tokens=1,2,3,4,5,6,7,8" %%a in (%1) do (
    if "%%b" == "%2" (
        if "%%e" == "%3" (
            @echo %%a %%b %%c %%d %%e %%f %%g %%h >> output.txt
        )
    )
    if "%%b" == "%3" (
        if "%%e" == "%2" (
            @echo %%a %%b %%c %%d %%e %%f %%g %%h >> output.txt
        )
    )
)

我还使用了输入文件名 (%1) 和两个字符串(%2 和 %3)的输入参数，它的作用就像一个魅力:)

I have also used the input parameters for the input file name (%1) and the two strings (%2 and %3) and it works like a charm :)

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