Using grep to search inside files

One very important tool that Unix provides is the grep command, which processes files line by line and prints out any matching the pattern you have set for it.

Let's say you want to find where file.html is containg the word '' you would run the command (from the folder it is in)
grep "" file.html
If grep finds it, it will output the entire line it is in, making it easier and faster to analyze your files.

To highlight the phrase with a color, you can use the --color option.
To view the line it was found at, you would need to use the -n option.
To do a case insensite server, -i would need to be used.
grep -i -n --color "" file.html
To use a file wildcard and search all files sharing something in common (like extension, for example), you can use the '*'
grep -i -n --color "" *.html
This would output any line in any html file in that folder containing

If you want to do it recursively and search all subdirectories, you would need to add the -r option.
grep -r "" *.html
Adding -c would give you the number of times the pattern was found, while -l would print the files with matches.
  • 0 Users Found This Useful
Was this answer helpful?

Related Articles

How to run MTR to diagnose network issues

MTR is a network diagnostic tool that combines traceroute and ping utilities. It enables system...

Archiving and extracting with Tar & Gzip

Tar is the best tool to pack an archive and Gzip is the most widely used archive type when using...

Finding files via SSH

Finding files and content in the command line can be tricky sometimes, but with a bit know...

SSH connection to MySQL

Connecting to your MySQL server via SSH can be very useful for developers and system admins and...

Using Putty to connect via SSH

Connecting to your Linux server via SSH is usually done via Putty at...