Using Perl as Grep or Sed

• perl -ne '/pattern/ and print' ...
• perl -lne '/pattern/ and print' ...
• perl -pe 's/foo/bar/' ...
• perl -pe 's/^foo.*//' ...
  
• perl -lpe 's/^foo.*//' ...
• perl -pi -e 's/foo/bar/' ...
• perl -pli -e 's/foo/bar/' ...