Search for red OR green:
grep 'red\|green' files
Search for searchtext at the beginning of a line in files:
grep '^searchtext' files
Search for searchtext at the end of a line in files:
grep 'searchtext$' files
Search files for blank lines:
grep '^$' files
Search files for US formatted phone numbers (###-###-####):
grep '[0-9][0-9][0-9]-[0-9][0-9][0-9]-[0-9][0-9][0-9][0-9]' files
or:
grep '[0-9]\{3\}-[0-9]\{3\}-[0-9]\{4\}' files
Search for e-commerce or ecommerce in files:
grep e-*commerce files
Search for searchtext case-insenstively in files:
grep -i searchtext files
Search for searchtext at the beginning of a line in files:
grep '^searchtext' files
Chain two grep commands together for more advanced searches. Search for lines in files that contain both partial_name and function:
grep partial_name files | grep function
That one is great for searching source directories for a function definition when you can’t remember the completely function name.
Popularity: 3%
Most Popular Posts
