Question

linux regular expression

file name: lab3test.txt

Create regular expressions that meet the following criteria. You may use grep or egrep to answer these questions.

1.Write a SED command that could replace all of the area codes that use parenthesis so that they are removed and replaced with a single dash like the others. Example: [phone] should become 222-222-2222.

Answer 1

SED command that could replace all of the area codes that use parenthesis so that they are removed and replaced with a single dash like the other is:

Command:

sed -E 's/\(([^()]*)\)/\1/' lab3test.txt

This works as intended and replaces the parenthesis '()' with a '-' dash.

I executed this in Linux UBUNTU and it works perfectly fine. Here is the output.

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