Informatica Pre Session 命令读取目录中匹配模式的文件并删除文件中的“”

Question

我研究了很多，最后决定提出这个问题。我正在使用 Informatica Pre Session 命令读取与特定模式匹配的文件并删除这些文件中的所有“”字符。 同样，一旦完成，我需要删除最后一行。

在个别文件上，我可以使用以下方法：

#To remove Double Quotes from the file

sed -i -e 's/\"//g' /opt/informed/file_name_20200801.txt

# This works for individual files but next I'm trying to loop through a directory 
#with matching file names and delete quotes in all files in the directory

for file in opt/informed/file_name_*.txt; do 
        sed 's/\"//g' "$file" >> /opt/informed/"$file";
done;

#It runs without error but nothing happens. I want to edit the existing files to get rid of 
#any double quotes in those files. ```

#Once I'm able to achieve that, I can apply a similar loop to process the files 
#to delete last #line of each file using:

sed -e '$d' /opt/informed/filename.txt >> filename.txt #Works for individual Files

Answer 1

请使用以下脚本，

替换双引号

for file in opt/informed/file_name_*.txt; 
do 
        sed 's/\"//g' "$file" > tmp && mv tmp "$file";
done;

删除标题

for file in opt/informed/file_name_*.txt;  
do 
    sed -i '$d' "$file" > tmp && mv tmp "$file";
done;

代码循环每个文件并重定向到tmp，然后将moves重定向到原始文件名。

为您提供了两个不同的代码以清楚地理解它。您可以将其合并到一个脚本中并在 informatica 会话前命令中调用它