Student needs grep command help Post: 303007941

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Homework and Emergencies Homework & Coursework Questions Student needs grep command help Post 303007941 by jetoutant on Thursday 23rd of November 2017 09:24:31 PM

11-23-2017

Registered User

Student needs grep command help

I am a Student in college struggling with Linux homework

This home work was created by my professor not out of the class text book and is frustrating me and the text book is a little frustrating as well

need help with 2 5 6
stuck on 2 currently so I know 5 and 6 will be even more frustrating for me

The contents of the smallFile is listed below.

Make a file on your system with that data. Assume each field is whitespace or tab separated. The format of the fields is below.
Do each of the 6 Displays below. Each will be a grep with regular expressions. Show the command that you used for each.
Do the Shell Script.

File fields format:
First_Name Last_name Degree GPA email_address Class_section
I added the " : " to try and help otherwise it was just white space

Code:

$ cat smallFile
John:Doe:ECE:3.54:doe@jd.home.org:111.222.3333
James:Davis:ECE:3.71:davis@jd.work.org:111.222.1111
Al:Davis:CS:2.63:davis@a.lakers.org:111.222.2222
Ahmad:Rashid:MBA:3.74:ahmad@mba.org:111.222.4444
Sam:Chu:ECE:3.68:chu@sam.ab.com:111.222.5555
Arun:Roy:SS:3.06:roy@ss.arts.edu:111.222.8888
Rick:Marsh:CS:2.34:marsh@a.b.org:111.222.6666
James:Adam:CS:2.77:jadam@a.b.org:111.222.7777
Art:Pohm:ECE:4.00:pohm@ap.a.org:111.222.9999
John:Clark:ECE:2.68:clark@xyz.ab.com:111.111.5555
Nabeel:Ali:EE:3.56:ali@ee.eng.edu:111.111.8888
Tom:Nelson:ECE:3.81:nelson@tn.abc.org:111.111.6666
Pat:King:SS:2.77:king@pk.xyz.org:111.111.7777
Jake:Zulu:CS:3.00:zulu@jz.sa.org:111.111.9999
John:Lee:EE:2.64:jlee@j.lee.com:111.111.2222
Sunil:Raj:ECE:3.36:raj@sr.cs.edu:111.111.3333
Charles:Right:EECS:3.31:right@cr.abc.edu:111.111.4444
Diane:Rover:ECE:3.87:rover@dr.xyz.edu:111.111.5555
Aziz:Inan:EECS:3.75:ainan@ai.abc.edu:111.111.1111
Lu:John:CS:3.06:lu.john@xyz.org:111.333.1111
Lee:Chow:EE:3.74:chow@lc.wcw.ord:111.333.2222
Adam:Giles:SS:2.54:giles@cric.org:111.333.3333
Andy:John:EECS:3.98:john@aj.ece.edu:111.333.4444

Display lines, with line numbers, records of CS majors.
Display lines, with line numbers, for students whose first name is John.
Display lines, with line numbers, for students whose first or last name is Lee.
Display lines for students whose e-mail addresses end with .org.
Display lines for students with GPA above 3.69 but less than 4.0.
Display lines for ECE majors with GPA 3.5 or above but less than 4.0.

Shell Script: Pick one of the grep commands that you created above. Put that grep command in a shell script. The name of the shell script is your choice. Run the shell script.
Turn in the contents of the shell script and the output of the shell script run.

attempt 1 and 2

Code:

grep -n '\<John\>' smallFile 

grep -n '\<John\>' smallFile | sort -t: +0 -1

out come

Code:

1:John:Doe:ECE:3.54:doe@jd.home.org:111.222.3333
10:John:Clark:ECE:2.68:clark@xyz.ab.com:111.111.5555
15:John:Lee:EE:2.64:jlee@j.lee.com:111.111.2222
20:Lu:John:CS:3.06:lu.john@xyz.org:111.333.1111
23:Andy:John:EECS:3.98:john@aj.ece.edu:111.333.4444

attempt 3

Code:

cat smallFile | grep John

out come

Code:

John:Doe:ECE:3.54:doe@jd.home.org:111.222.3333
John:Clark:ECE:2.68:clark@xyz.ab.com:111.111.5555
John:Lee:EE:2.64:jlee@j.lee.com:111.111.2222
Lu:John:CS:3.06:lu.john@xyz.org:111.333.1111
Andy:John:EECS:3.98:john@aj.ece.edu:111.333.4444

I need a out come of

Code:

1:John:Doe:ECE:3.54:doe@jd.home.org:111.222.3333
10:John:Clark:ECE:2.68:clark@xyz.ab.com:111.111.5555
15:John:Lee:EE:2.64:jlee@j.lee.com:111.111.2222

I am obviously not finding the information I need and need the help figuring it out

Waubonsee Community College
Sugar Grove Illinois
Professor: Tim Lippold
Linux/UNIX Operating System CIS180
Book being used is Harley Hahn's Guide to Unix and Linux

---------- Post updated at 08:24 PM ---------- Previous update was at 03:35 PM ----------

Update figured out grep command for 2

Code:

grep -n '^\<John\> smallFile

outcome

Code:

1:John:Doe:ECE:3.54:doe@jd.home.org:111.222.3333
10:John:Clark:ECE:2.68:clark@xyz.ab.com:111.111.5555
15:John:Lee:EE:2.64:jlee@j.lee.com:111.111.2222

now stuck on 5 and 6

Last edited by rbatte1; 11-24-2017 at 07:48 AM.. Reason: Set formatted bulletted list and numbered list

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