Search Multiple Words / String Pattern Using grep Command on Bash shell

Posted on in Categories , , , , , , last updated May 3, 2017

How do I search multiple strings or words using the grep command? For example I’d like to search word1, word2, word3 and so on within /path/to/file. How do I force grep to search multiple words? How can I grep for multiple patterns on Linux, OS X, FreeBSD, or Unix-like system?