UNIX:grep
grep
フィルタ
agrep – an approximate string-matching command
Boyer–Moore string-search algorithm – search algorithm used in grep
find (Unix) – a Unix command that finds files instead of text
find (Windows) or findstr – a DOS/Windows command that searches for text in files, similarly to grep
List of POSIX commands
ngrep – the network grep
vgrep – a humorous term for visual inspection
UNIX:find
https://ja.wikipedia.org/wiki/Grep
https://en.wikipedia.org/wiki/Grep