grep

Function	Prints lines that match a pattern in a page or piped input (substring match).
Options	You can combine the options in the following table (for example -iv or -i -v).
Limitations	grep requires a pattern and either a page path or piped input. With stdin, PATH is ignored.

Option	Meaning
-i	Ignore case
-v	Show lines that don’t match
-n	Prefix each line with its 1-based line number (N:line)
-c	Print a count of matching lines instead of the lines

Examples

$ grep a ./page1
$ grep -i foo ./page
$ grep -n pattern ./page1
$ grep -c pattern ./page1
$ ls | grep -i page
$ ls | grep -v Draft
$ ls | grep -vn bar
$ cat ./page | grep -c error

Enter help grep in the console to view this option list. To search page bodies across a tree, use find … -exec grep.