community man page
ack
A search tool like `grep`, optimized for developers. See also: `rg`.
Reading is open to everyone. Suggesting a flag, fixing an example or adding a recipe is opening to verified-email accounts soon — every change is moderated before it goes live.
curl https://curlhub.sh/man/ack
same page, in your terminalExamples
Search for files containing a string or `regex` in the current directory recursively
ack "search_pattern"
Search for a case-insensitive pattern
ack [-i|--ignore-case] "search_pattern"
Search for lines matching a pattern, printing only the matched text and not the rest of the line
ack [-o|--output '$&'] "search_pattern"
Limit search to files of a specific type
ack [-t|--type] ruby "search_pattern"
Do not search in files of a specific type
ack [-t|--type] noruby "search_pattern"
Count the total number of matches found
ack [-c|--count] [-h|--no-filename] "search_pattern"
Print the file names and the number of matches for each file only
ack [-c|--count] [-l|--files-with-matches] "search_pattern"
List all the values that can be used with `--type`
ack --help-types