Question

Write a complete shell script that first asks the user to enter a URL. The script should read the URL into a variable named url.

The shell script should then retrieve the file associated with the URL by using the curl command.

The output of the curl command should be redirected to a file named html_file.

The shell script should then use the grep command to search the file named html_file for the word manhattan.

Finally, the shell script should make the file named html_file readable to everyone by issuing the appropriate chmod command to give "o" (others) read permission on the file.

Answer 1

Please find the requested script below. Also including the screenshot of sample output

Please provide your feedback
Thanks and Happy learning!

#!/bin/bash
#Above line sets the environment for the script to bash

#Check for the command line argument
if [ $# -eq 1 ]
then
   url="$1"
else
    echo "There should be exactly one command line argument."
    exit 0;
fi

#retrieve the file associated with the URL by using the curl command to file html_file
#syntax of the curl command to get the url to an output file is as follows
#curl http://some.url --output some.file

`curl $url --output html_file`

#use the grep command to search the file named html_file for the word manhattan.
grep "manhattan" html_file

#make the file named html_file readable to everyone by issuing the appropriate chmod command 
#to give "o" (others) read permission on the file.

chmod o+r html_file