1,576
edits
Changes
Replaces pathnames for the numbers.txt file to use the ~uli101 home directory.
'''Part A: Display Results from Linux Commands using Regular Expressions'''
Note the contents from the following tab-delimited file called '''~murray.saul/uli101/numbers.txt''':
<pre>
Write the results of each of the following Linux commands using regular expressions for the above-mentioned file.
1. <span style="font-family:courier;font-weight:bold">grep "^[-+]" ~murray.saul/uli101/numbers.txt</span><br>2. <span style="font-family:courier;font-weight:bold">grep "^[-+]*.[0-9]" ~murray.saul/uli101/numbers.txt</span><br>3. <span style="font-family:courier;font-weight:bold">grep "^[+-]?[0-9]" ~murray.saul/uli101/numbers.txt</span><br> (Why?)<br>4. <span style="font-family:courier;font-weight:bold">egrep "^[+-]?[0-9]" ~murray.saul/uli101/numbers.txt</span><br>5. <span style="font-family:courier;font-weight:bold">egrep "^[+-]?[0-9]+$" ~murray.saul/uli101/numbers.txt</span><br>6. <span style="font-family:courier;font-weight:bold">egrep "^[+-]?[0-9]+[.]?[0-9]+$" ~murray.saul/uli101/numbers.txt</span><br>
