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

  • 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

  • @Theophrastus As a one-liner, it could be run inside any IDE using grep as their internal machine. But I think you are right. It can be done in two steps. Please, consider an answer so I can better understand your proposal. Jun 15, 2016 at 17:26

3 Answers 3


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"
  • I get blank output when running your command on document.tex. Those links are relative to $PWD. Should it be considered here too? Those two files are at ./ i.e. the same location where I run the command and where the document.tex locates. What do you get as an output? Jun 15, 2016 at 20:38
  • I am understanding that you want to find files containing the grep rule, how document.tex is related with this ? And what you mean with this: # TODO search the list of files with the word gastric, grep -R 'gastric' will search all the files in the directory you are with the world 'gastric', i really not getting what you are trying to do. Can be more specific? Jun 15, 2016 at 20:46
  • The document.tex's content is those two lines. Grep must first find those files, and then apply search in the content of the files in the list. I created the two dummy files in the body which have now the test content. I want to grep the content of the file list (here two dummy files). Jun 15, 2016 at 20:48
  • 1
    Oh now i understand, i am righting your answer right now. Jun 15, 2016 at 20:51
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.


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.

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