Linux - Searching within Files

​In Bash, we can search for ​words within files that match a certain pattern using the grep command. ​What if you wanted to know of a certain file existed in a directory, or ​if a word was in a file? ​Similar to the PowerShell select bash string command. ​We can use the grep command in Bash. ​Let’s search for the word cow in farm animals. ​ You’ll see that grep found cow in the text file farm animals. ​You can also use grep to search through multiple files.

Let’s use their asterisk wildcard command here, and ​you can see that it found cow in farm animals and ranch animals.