Substitution in AWK

Shell Programming and Scripting
1

I am trying to use AWK to replace dallinux02 to dallinux03 everywhere in the servers.txt file and move it over to "awk2".

Here is my script "awk2.awk":

           gsub(/dallinux02/, "dallinux03"); print > "awk2"

I am trying to run this using the following:

$ awk -f awk2.awk servers.txt

But, I am getting a syntax error. Please assist!

2

See if this helps.

 
 
File "awk2.awk":

{gsub(/dallinux02/,"dallinux03")}; 1

Command:
 
awk -f awk2.awk servers.txt >awk2
3

@ora_umair: I think the {} is missing, try the following:

awk '{gsub(/dallinux02/, "dallinux03"); print }' servers.txt > awk2
4

Thanks everyone for your help.

thanhdat, you are right. The problem was the missing curly braces.

In AWK, an action is defined as one or more awk commands enclosed in a pair of curly braces {}.