This is for my linux class and please use the \"awk\" editor. Consider the addre

Question

This is for my linux class and please use the "awk" editor.

Consider the address book below:

$ cat addr

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

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

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

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

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

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

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

Write a awk script called activity6.1-6.awk to display the phone number of the user whose username is assigned to the variable user at the command line.

If we run your script as: awk –f activity6.1-6.awk user=mta addr

The output should be:

The phone number for mta is 4345667345

Explanation / Answer

Syntax for AWK

awk [ -F fs ] [ -v var=value ] [ 'prog' | -f progfile ] [ file ... ]

-F fs - >Sets the input field separator to the regular expression fs.
-v var = value - > Assigns the value value to the variable var before executing the awk program.
'prog' - > An awk program.
-f progfile - > Specify a file, progfile, which contains the awk program to be executed.
file - > A file to be processed by the specified awk program.

awk -F',' '{printf "%-30s|%-30s|%-20s ",$1,$2,$3,$4,$5}' addr.txt

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