How to use grep

Use curL and grep on an HTTP response

use curl to get a specific line from an HTTP response, you'd typically combine curl with other command-line utilities like grep. Assuming you want to fetch the contents from "https://example.com" and then grep for a specific line, here's a basic approach:

1. Use curl to fetch the webpage.

2. Pipe the output to grep to search for the specific line.

Here's a generic command structure:

curl -s https://example.com | grep 'your-search-term-here'

In this command:

• curl -s https://example.com fetches the webpage content. The -s flag makes curl operate in silent mode, where it doesn't show progress or error messages.

• | pipes the output of curl to the next command.

• grep 'your-search-term-here' filters the output, showing only lines that contain 'your-search-term-here'.

Replace 'your-search-term-here' with the actual hostname/website you're looking for.

Keep in mind that this approach works well for simple text searches. If you're dealing with more complex data structures like HTML, XML, or JSON, you might need more sophisticated tools like awk, sed, or a parser designed for that data format.

Additional you can use extra parameters like:

• -H causes the filename to be printed (implied when multiple files are searched)

• -r does a recursive search

• -n causes the line number to be printed

• -I ignore binary files (complement: -a treat all files as text)

• -i do a case-insensitive search

• --color=always to force colors.

Looking in a curent folder:

-r - Recursively search subdirectories.

grep -r "pattern"

Other sources:

ripgrep: https://blog.burntsushi.net/ripgrep/