Find-grep for List of .tex Files?

Question

My document.tex where I want to get the list of files, and grep those files with the term gastric

\subimport{}{1.2_protocal_answers.tex}
\subimport{}{2_protocol_answers.tex}

• 1.2_protocal_answers.tex content: this is a gastric juice lorem content
• 2_protocol_answers.tex content: this is a second gastric\n test file

My .pdf output is broken, but I need to search the contents in the material. My Directory is too massive to do it for all, which can be done with Geany's Find in Files. I would like to do dependent search on the files that are imported in the file. Attempts

• Pseudocode where I cannot get the list of files in the .tex document

  find ./document.tex -type f -exec \
      grep -E '\subimport{[A-Za-z1-9_-]*} {} \; 
  # TODO search the list of files with the word `gastric`
  

• Any IDE approach? My favorite IDE uses grep internally so I think find-grep approach is the most appropriate here.

System: Ubuntu 16.04, 64 bit
Grep: grep (GNU grep) 2.25
Find: find (GNU findutils) 4.7.0-git
Hardware: Macbook Air 2013-mid
Linux kernel: 4.6

Answer 1

Edited as the user needs:

   cat document.tex | cut -d'{' -f3 | cut -d'}' -f1 | while read file
         grep -i 'gastric' "$file" &>/dev/null && echo "$file contains gastric"
   done 

Answer 2

perl -l0 -ne 'print for /\\subimport\{\}\{(.*?)\}/g' file.tex

Would print the filenames inside those \subimport{}{...} functions NUL-delimited.

You can pipe that to xargs -0 grep -l gastric -- to find which of those files contain gastric.

Answer 3

In the end, I use the search in directory by the script here with a redirection to Vim. It would be great to get something like that work in Geany IDE directly.