Question: construct a bash pipe command sequence in linux (e.g. cmd1 < input | cmd2| cmd3, etc.) to count the number of input lines that match

construct a bash "pipe" command sequence in linux (e.g. "cmd1 < input | cmd2| cmd3", etc.) to count the number of input lines that match a given string

(e.g. "dog", etc.)

show the command working and a test input file (text scrape or screen shot)

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