CSE 15L University of California San Diego Parallelogram Printer

http://ieng6.ucsd.edu/~cs15x/homework/script2/inde…

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jiangzhousima-2:~ jiangzhousima$ ssh cs15lwi21adq@ieng6.ucsd.edu
Password:
Last login: Mon Feb 1 18:21:46 2021 from c-24-5-126-242.hsd1.ca.comcast.net
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You are using 0% CPU on this system
Cluster Status
Hostname Time #Users Load
ieng6-201 20:00:01 37 1.21,
ieng6-202 20:00:01 39 4.49,
ieng6-203 20:00:01 41 1.21,
Averages
1.47,
1.72
4.52, 4.45
1.33,
1.39
Wed Feb 24, 2021 8:01pm Prepping cs15lwi21
[cs15lwi21adq@ieng6-202]:~:171$ gethw
Assignments:
1 hw1
2 – hw2
3 hw3
4 hw4
5 hw5
6 scripting project 1
7 scripting project 2
8 scripting project 3
–
LO
–
–
Select an assignment by picking a number: 7
Done. Navigate to ‘~/homework/script2’ to get started.
[cs15lwi21adq@ieng6-202]:~:172$ cd homework/script2
[cs15lwi21adq@ieng6-202]:script2:173$ vim parallelograms.sh
[cs15lwi21adq@ieng6-202]:script2:174$
#!/bad/dir/tor/bash
# TODO: Complete the first line with the correct location for bash
#
# Name: TODO
# PID: TODO
# Account ID: TODO
# File: parallelograms.sh
# Assignment: Scripting Project 2
# Date: TODO
#
#:
# DO NOT TOUCH BELOW THIS LINE
#=
ERR_USAGE=”Usage: ./parallelograms.sh”
ERR_INPUT=”Parallelogram size must be [2,20].”
MSG_PROMPT=”Enter the size of the parallelograms to display:
MSG_REPLAY=”Run again? (y/N): ”
U_LIMIT=20
L_LIMIT=2
#=
# DO NOT TOUCH ABOVE THIS LINE
#:
#
# print_pattern
# Function that prints out a parallelogram pattern row by row. The pattern
# should consist of:
#
# [spaces-stars] space [stars-spaces] space [spaces-stars] space [stars]\n
#
# where
# [spaces-stars] is a pattern consisting of spaces and stars up to a given
#
width that will result in a triangle if printed alone
# [stars-spaces] is a pattern consiting of stars and spaces up to a given
#
width that will result in a triangle if printed alone
space
is a single space separating the blocks
# [stars]
is a pattern consisting of only stars for the 4th triangle
# In
is the newline character. Printed with echo
#
# A parallelogram of size three looks like:
#
# ****
* ****
# ** **
#
#
# USAGE
# print_pattern numrows
#
# INPUT
# numrows: number of rows of the parallelogram that should be printed
function print_pattern {
# TODO: Finish this function. You will need nested loops here, as well as
# basic arithmetic. This function should print the parallelograms out row by
# row. Remember that you can do arithmetic expressions with ‘bc’, ‘expr., or
# $(( … )). We’ve provided you with the skeleton code for the first
# triangle. Your job is to finish the rest. Be sure to match the reference
# implementation _exactly_!
*****
* **** *****
# Index to keep track of the current row
ind=0