I have multiple files in path /opt/data/file1.txt file2.txt file3.txt
I want to append all context in the single file like path /opt/alltxt.txt
file content like 
path /opt/data/file1.txt
"file1 context"    
path /opt/data/file2.txt
"file2 context"
path /opt/data/file2.txt
"file2 context"
 
     
    