Twice with cache enable and twice without cache enable. While not the be-all and end-all, I carried out a search 4 times. pdfgrep -cache -ignore-case grep TLCL-19.01.pdf. This is especially noticeable on large files. It caches the rendered text to speed up grep-ing. The tool comes in handy and will save you time. For that reason, the cache option exists. The next time you think of opening up a PDF file to search for anything. ![]() The default match highlight color can be changed by altering the GREP_COLORS environment variable. Don’t forget pdfgrep can search multiple files at the same time, in case you’re working with some bulk files. The full list of supported options can be found in the man pages or in the pdfgrep online documenation. That means when the number of matches is reached, the command stops reading the file.
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