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替换文件 2 中的单词，从文件 1 中获取替换列表

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替换文件 2 中的单词，从文件 1 中获取替换列表

猫档案 1

ABC,23
DFG,45
Ghj,678

猫文件2

Listed LinkedIn yellow ABC
Fixed DFG linked ABC
Holiday Europe Ghj DFG

我需要如下输出

Listed LinkedIn yellow 23
Fixed 45 linked 23
Holiday Europe 678 45

答案1

转换file1成的命令sed并使用它们来修改file2：

sed -r 's/(.*),(.*)/s,\1,\2,/' file1 | sed -f - file2

这假设中的值file1不包含特殊字符，并且您想要替换中的所有出现file2。

答案2

您可以使用bash关联数组来实现这一点。

$ cat foo.txt  # Contents of "foo.txt"
ABC,23
DFG,45
Ghj,678

$ cat bar.txt  # Contents of "bar.txt"
Listed LinkedIn yellow ABC
Fixed DFG linked ABC
Holiday Europe Ghj DFG

$ declare -A foobar  # Declaring associative array "foobar"

## Putting comma separated portions of file "foo.txt" as key-value 
## pair for array "foobar"
$ while IFS=',' read a b; do foobar["$a"]="$b"; done <foo.txt 


## Now reading each line of "bar.txt" and iterating over the keys 
## of array "foobar" by "${!foobar[@]}" to find a match, if found
## correspoding value of the key will replace the key using parameter
## expansion pattern "${line//key/value}"

$ while IFS=' ' read line; do for i in "${!foobar[@]}"; do \
    line="${line//"$i"/"${foobar["$i"]}"}"; done; echo "$line"; done <bar.txt 

Listed LinkedIn yellow 23
Fixed 45 linked 23
Holiday Europe 678 45

以下是最后一部分的扩展版本：

while IFS=' ' read line; do 
    for i in "${!foobar[@]}"; do 
        line="${line//"$i"/"${foobar["$i"]}"}" 
    done 
    echo "$line" 
done <bar.txt

答案3

你可以使用awk

awk 'FS="," {\
    if(NR == FNR) {\
        n[(FNR"")] = $0\
    } else {\
        a[($1)] = $2\
    }\
}\
END {\
    for (i in n) {\
        for (j in a) {\
            gsub(j,a[j],n[i])\
        }\
        print n[i]\
    }\
}' File2 File1

例子

输入文件

cat foo

ABC,23
DFG,45
Ghj,678

cat bar

Listed LinkedIn yellow ABC
Fixed DFG linked ABC
Holiday Europe Ghj DFG

命令和输出

% awk 'FS="," { if(NR == FNR) {n[(FNR"")] = $0} else {a[($1)] = $2}}  END {for (i in n) {for (j in a) {gsub(j,a[j],n[i])} print n[i]}}' bar foo
Listed LinkedIn yellow 23
Fixed 45 linked 23
Holiday Europe 678 45

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