使用 awk 創建的文件中的範例名稱存在問題

我有一些數據如下：

dir1
 |___dir2
        |___dir3
              |____files
                     |____TGH4_1.tar.gz
                     |____TGH4_2.tar.gz
                     |____IOP5_1.tar.gz
                     |____IOP5_2.tar.gz
                     |____RGH2_btre_1.tar.gz
                     |____RGH2_btre_2.tar.gz
                     |____QWE6_btre_1.tar.gz
                     |____QWE6_btre_2.tar.gz

在文件夾中dir3，我創建了一個腳本test.awk，其程式碼如下：

BEGIN {
   FS="[/_]"; OFS="\t"
   print "sample", "Second", "Third"
}
NR%2 { second = $0; next }
{ print $2, second, $0 }

使用test.awk我創建了一個文件：

printf '%s\n' $PWD/files/* | awk -f test.awk > test.txt

我得到的輸出test.txt如下：

sample  Second  Third
dir1    /dir1/dir2/dir3/H0032/files/TGH4_1.tar.gz   /dir1/dir2/dir3/H0032/files/TGH4_2.tar.gz
dir1    /dir1/dir2/dir3/H0032/files/IOP5_1.tar.gz   /dir1/dir2/dir3/H0032/files/IOP5_2.tar.gz
dir1    /dir1/dir2/dir3/H0032/files/RGH2_btre_1.tar.gz  /dir1/dir2/dir3/H0032/files/RGH2_btre_2.tar.gz
dir1    /dir1/dir2/dir3/H0032/files/QWE6_btre_1.tar.gz  /dir1/dir2/dir3/H0032/files/QWE6_btre_2.tar.gz

輸出應如下所示：

sample  Second  Third
TGH4    /dir1/dir2/dir3/H0032/files/TGH4_1.tar.gz   /dir1/dir2/dir3/H0032/files/TGH4_2.tar.gz
IOP5    /dir1/dir2/dir3/H0032/files/IOP5_1.tar.gz   /dir1/dir2/dir3/H0032/files/IOP5_2.tar.gz
RGH2_btre   /dir1/dir2/dir3/H0032/files/RGH2_btre_1.tar.gz  /dir1/dir2/dir3/H0032/files/RGH2_btre_2.tar.gz
QWE6_btre   /dir1/dir2/dir3/H0032/files/QWE6_btre_1.tar.gz  /dir1/dir2/dir3/H0032/files/QWE6_btre_2.tar.gz

改變：

BEGIN { FS="[/_]" ... }
...
{ print $2, second, $0 }

至：

BEGIN { FS="/" ... }
...
{
   sample = $NF
   sub(/_[^_]*$/,"",sample)
   print sample, second, $0
}

您的程式碼正在列印dir1，因為這是/dir1/dir2/dir3/H0032/files/TGH4_2.tar.gz給定 FS 設置的第二個欄位，並且您的程式碼顯示print $2....

引用自：https://unix.stackexchange.com/questions/719736