Pipe log_levels.txt into grep + wc -l to count how many lines say INFO.
Without referencing the file as an argument to `grep`, count how many lines in `/home/user/data/log_levels.txt` are exactly `INFO`.
Build a pipeline that reads the file via stdin redirect (`<`) into `grep`, then pipes to `wc -l`. Expected output: `4`.
Sign in to save your code and track progress across devices.
