Exam (elaborations)
RH134 part 1 Exam chapter 1-7 | Questions And Answers Latest {} A+ Graded | 100% Verified
- Course
- Institution
RH134 part 1 Exam chapter 1-7 | Questions And Answers Latest {} A+ Graded | 100% Verified
[Show more]
Content preview
RH134 part 1 Exam chapter 1-7 | Questions And Answers Latest {2024- 2025} A+ Graded |100% Verified
Line at the beginning of bash files - #!/bin/bash
Character to search at the beginning of the line - ^
Character to search at the end of the line - $
Character to match any single character (with the exception of the newline character) - .
Character to match zero or more of the previous expression - *
Character to match the previous expression one of more times - +
The flag in the grep command that ignores commented lines - -v
What does this regular expression search?
c.\{2\}t - any word beginning with a c, followed by exactly any two characters, and ending with a t
(i.e coat, cart)
Command to get an overview of pending jobs for the current user - atq
(OR at -l)
Command to remove jobs - atrm JOBNUMBER
Command to inspect commands that will run when a job is executed - at -c JOBNUMBER
, Command used to manage jobs - crontab
Command to list the jobs for the current user - crontab -l
Command to remove all jobs for the current user - crontab -r
Command to edit jobs for the current user - crontab -e
Command to remove all jobs, and replace with the jobs read from filename. (If no file is specified, stdin
is used.) - crontab FILENAME
Order of fields in crontab file - minutes (0-59), hours (0-23), day of month (1-31), month (1-12), day of
week (0-6), command
Character to specify "Do not care"/always in crontab file - *
How to indicate an interval of x in the crontab file - */x
(i.e */7 in the minutes column will run every 7 minutes)
What two locations are recurring system jobs defined? - /etc/crontab
/etc/cron.d
What file ensures important jobs always run and are not skipped accidentally because a system was
turned off? - /etc/anacron
Command to print systemd timer unit configuration files - systemd-tmpfiles-clean.timer
Command to purge temporary files
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller oneclass. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.48. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
78677 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now