如何将文件名附加到每个 [英] How to append the filename to every

问题描述

文件中有32个单元格，因此我需要读取文件名并将文件名附加在每一行的开头

I have 32 cells in a file so i need to read the name of the file and append the file name at the starting of every line how can i do it

示例

MACRO XYZ 
PIN AB 
DIRECTION INPUT ;
PIN BC
DIRECTION INPUT ;

MACRO  GEN 
PIN DECSEL_STG2[0]
DIRECTION INPUT ;
PIN DECSEL_STG1[0]
DIRECTION INPUT ;

我需要什么作为输出

MACRO XYZ 
XYZ PIN AB 
XYZ DIRECTION INPUT ; 
XYZ PIN BC
XYZ DIRECTION INPUT ;


MACRO GEN 
GEN PIN DECSEL_STG2[0]
GEN DIRECTION INPUT ; 
GEN PIN DECSEL_STG1[0]
GEN DIRECTION INPUT ;

推荐答案

这可以通过相对简单的awk脚本来完成，如下所示:

This can be done with a relatively simple awk script, as per the following transcript:

pax$ printf "MACRO XYZ\nline 2\nline3\n\nMACRO GEN\nline 6\n\n\n" | awk '
...$    $1=="MACRO"{mac=$2;print;next}$NF>0{print mac" "$0;next}{print}'
MACRO XYZ
XYZ line 2
XYZ line3
.
MACRO GEN
GEN line 6
.
. 

(我添加了那些.个字符只是为了显示空白行).

(those . characters are added by me just to show where the blank lines are).

扩展脚本:

$1 == "MACRO" {      # If first word is macro:
    mac=$2;          #    store second word,
    print;           #    print line,
    next             #    and go get next line.
}
$NF > 0 {            # Otherwise, if line has some fields:
    print mac" "$0;  #    print stored macro name before line,
    next             #    and go get next line.
}
{                    # Otherwise (lines with no fields):
    print            #    just print it as is.
}

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