Question

1. Create and save a new text file called Gasoline that consists of the following content:

Gas prices stayed about the same the past two weeks, continuing an unusual 12 week trend of steadily increasing prices followed by prices relaxing.

The average price for gas nationwide, including all grades and taxes, was about $2.61 a gallon on Friday, according to a survey of 8,000 stations released Sunday. That was up .06 cents per gallon from the prior survey. Prices have been holding steady recently, indicating that the global market for gasoline is stabilizing.

2. Create an analysis script called TestScript that completes the following tasks for the Gasoline file:
   1. Remove punctuation
   2. Make all characters lowercase
   3. Put each word on a single line
   4. Remove blank lines
   5. Sort the text to put all lines containing the same word on adjacent lines
   6. Remove duplicate words from the text
   7. List most-used words in the file first
   8. Send the output of this script to a file named ScriptResult

3. Save the script. Make it executable. Run the script.
4. Open the ScriptResult file and verify that the contents match what was asked for in the TestScript script.
5. Copy and paste the windows for your TestScript script and your ScriptResult file. Paste them into this lab for turn-in.

Answer 1

# TestScriptsh # #l/bin/bash printf n- Removed Blank Lines ScriptResult val3-S(sed AS/d' Gasoline) echo Sval3 >ScriptResult printf n-Sorted Text" ScriptResult val4 S(cat Gasoline sort uniq -c) echo Sval4> file echo Sval4>ScriptResult printf n-Most used Words sed -e s/isAn/g' < file I sort uniq -cl sort -nr | head -10 >>ScriptResult printf n- Removed Duplicate Words >>ScriptResult >>ScriptResult printf n- Removed punctuation and Converted into lowercase >>ScriptResut val1 S(echo Sval4 tr -d 'T:puncttr T:upper:]' :lower]) echo Sval1>>ScriptResult printf n-each word on a single line>>ScriptResult echo Sval1 Itr""In'>ScriptResult # Basic Details : :a define a label a. sAblalnuml+)b.nbl11b/1112/g This looks for a duplicated word consisting of alphanumeric characters and removes the second occurrence ta : If the last substitution command resulted in a change, this jumps back to label a to try again.ln this way, the code keeps looking for duplicates until none remain. s/(. }+/. /g: s/. *Sy : These two substitution commands clean up any left over comma-space combinations.