miheev/grep.js

grep via NodeJS

grep.js

grep via NodeJS

grep.js based on grep (GNU grep) 3.1 and follows common grep behaviour

• Syntax follows general Unix command lines rules
• Option can be placed at any position (grep -x ### /path/to/file or grep ### -x /path/to/file or grep ### /path/to/file -x)
• File path defined as console argument has higher priority under linux pipe syntax (if cat /path/one | grep -x ### /path/two, then /path/two will be used as input)
• Quotes behaviours: not required for single word search, double and single quoted text treated the same (grep ### /path/to/file -x or grep '###' /path/to/file -x or grep "###" /path/to/file -x)

Features

• without parameters: output lines with keyword highlighted, case-sensitive (grep ### /path/to/file)
• -i: case-insensitive search
• -v: exclusive search, output lines, which not contains the keyword
• -c: output count of found lines with provided keyword
• -n: output highlighted line numbers along with text lines
• parameters combinations

Requirements

• NodeJS >= 12 (tested), possibly can work with v11

Examples

See Linux grep examples:

• https://www.cyberciti.biz/faq/howto-use-grep-command-in-linux-unix/
• https://www.geeksforgeeks.org/grep-command-in-unixlinux/