Silver finder can get PATTERN from file?

Question

There are 84 PATTERNs to check, I store them in the pattern.txt file name .

Is a silver finder (also called Ag) able to get these patterns from pattern.txt ?

grep has -foptions for reading a pattern from a file, but nothing is said about it in the silver finder's manual page.

Answer 1

No, in ag there is no similar option -f. A simple approach is to use a loop to pass patterns to ag; for example, you could use a while loop to read patterns like this:

while read pattern; do ag "$pattern" -G '.*.txt' ; done < patterns.txt

GNU ag. ag :

< patterns.txt | parallel 'ag --filename --parallel --color "{}" '

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