Using UNIX and Regex Consider the files addr and errorCode below: $ cat addr Xia

ID: 3875865 • Letter: U

Question

Using UNIX and Regex

Consider the files addr and errorCode below:

$ cat addr

Xiao Li, lxiao@unc.edu, 6705462234, Jackson, NC 764

Elizi Moe, emoe@ncsu.edu, 5208534566, Tempe, AZ 85282

Ma Ta, mta@yahoo.com, 4345667345, Austin, TX 91030

Diana Cheng, dcheng@asu.edu, 5203456789, Matitsi, WY 4587

Jackson Five, jfive@ncsu.edu, 5206564573, Kyenta, AZ 85483

Adi Srikanth Reddy, sadi1@imap1.asu.edu, 6578904566, Wyo, WS 67854

Natkin William, wnatkin@imap28.asu.edu, 8044344528, Richmond, VA 22345

$ cat errorCode

Error in the previous line.

Provide the sed command to insert the file errorCode after each line with invalid zip code.

Explanation / Answer

Above sed code will validate the ZIP code let me explain

In this sed code used regular expression it is used to extract the data as per user requirement rather than this code it ignore all the code which is not matching to this.

ad per given data have 2 characters and more than if it is lessthan 2 coded is invalid

[ : alpha : ] it indicates [ A - Z or a - z ]

{1 } it indicates length

as per given data number must be more than 4 and less than 6 then it is valid code

so we are taking the rane as 1 - 3 if the input code is in this range the it is invalid

{ 1- 3 } it indicates range

1 is for charatcters in zip code

2 is for digits in zip code

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Using UNIX and Regex Consider the files addr and errorCode below: $ cat addr Xia

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