Question

如果在file2中找到此字符串，我想在file1中为键添加星号。

谢谢，Bernardo

#file1
HPNK_00080  HPNK_00080  HPNK_04889  HAPS_1149   HAPS_1027   HAPS_0842   HPNK_04769  HAPS_1077   HPNK_10396  HPNK_04984  HPSD74_1027
HPNK_00090  HPNK_00090  HS308_01445 HAPS_0623   HAPS_0558   HS321_01221
HPNK_00277  HS312_01685 HS308_01448 HS306_01459 HPNK_00277  HS313_01643 HS310_01701 HS317_01870

#file2
HPNK_00080
HPNK_00090
HPNK_00210

#desired output
HPNK_00080* HPNK_00080  HPNK_04889  HAPS_1149   HAPS_1027   HAPS_0842   HPNK_04769  HAPS_1077   HPNK_10396  HPNK_04984  HPSD74_1027
HPNK_00090* HPNK_00090  HS308_01445 HAPS_0623   HAPS_0558   HS321_01221
HPNK_00277  HS312_01685 HS308_01448 HS306_01459 HPNK_00277  HS313_01643 HS310_01701 HS317_01870

我试过了：

awk '
BEGIN { FS=OFS="\t" }
NR==FNR { map[$1] = $2; next }
{
    for (key in map)
        if ($0 = key)
            $0 = $0"*"
    print
}

Answer 1

这很接近你所拥有的。

awk 'NR==FNR{key[$1]++;next}
     NR!=FNR{if ($1 in key) $1 = $1 "*"; print}' file2 file1

主要区别在于它在阅读$2时没有引用不存在的file2，它使用$1的直接查找而不是循环{ {1}}，在阅读$0时查看密钥是否存在。

Answer 2

假设file1中的键是唯一的，您也可以

awk '{$1 in key&&$1=$1"*";key[$1]}ARGIND==2' file2 file1

多个替换awk脚本

2 个答案: