CODEWITHSUNDEEP
linuxbashshellawk
jaeyong
jaeyong

Reputation: 9363

Very strange behavior in awk

I've run into very strange behavior in awk.

The input file is the following:

               ABCD                                        Yes
               EFGH                                        Yes

My awk script is the following:

/^              / {
        print "ss", $2, "dd\n"
}

What I'm expecting is the following:

ss Yes dd

ss Yes dd

But, suprisingly, the result is the following:

 ddYes

 ddYes

Where is my "ss" and how come Yes attached in the back of "dd"?

Upvotes: 2

Views: 94

Answers (2)

user2484633
user2484633

Reputation: 27

awk '{print "ss", $2, "dd\n"}' f2

f2 is input file and its working fine for me

Upvotes: -1

Etan Reisner
Etan Reisner

Reputation: 80921

The input file has DOS newlines. The \r character at the end of each line is getting output as part of $2 and resetting the insertion point to the start of the line at which point the space from , and dd are then printed out overwriting the initial ss. (You can modify either the ss prefix or the dd suffix length to see this more clearly.)

Strip those from the original file and this will go away.

Upvotes: 3

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