ripgrep replace preview

Preview how a replacement would look without writing

rg 'old_value' --replace 'new_value' --passthru config.yaml

More grep commands

ripgrep stats

rg 'error' /var/log/ --stats 2>&1 | tail -5

Show total matches, files searched, elapsed time
Search binary files

grep -a 'password' /proc/<pid>/mem 2>/dev/null | strings | head -20

Treat binary as text (-a) to search process memory
Extended regex alternation

grep -E '(ERROR|WARN|CRIT)' app.log | tail -50

Match lines containing ERROR, WARN, or CRIT
Recursive case-insensitive search

grep -ri 'error' /var/log/

Search all files under /var/log for 'error' (any case)
Show context lines

grep -B3 -A5 'FATAL' app.log

Print 3 lines before and 5 lines after each match