Loops let a script repeat work: create ten users, check every configuration file, process each line of a list. Bash has two loops you need for the RHCSA: for, which walks through a list of words, and while, which repeats as long as a command succeeds. Combined with read, a while loop processes a file line by line.
Free account
Keep reading for free
Create a free StudyToCert account to read the rest of this lesson: 7 more sections, 5 key terms, a real-world example, an exam tip and self-check questions. Every lesson, lab and practice test is free with an account.