switch the order in a text file

Question

I got a text file in this format:

ip1:user1:pass1
ip2:user2:pass2
ip3:user3:pass3

How can I change the order in lines to get this result?

user1:pass:1@ip1
user2:pass2@ip2
user3:pass3@ip3

Answer 1

awk -F : '{print $2 FS $3 "@" $1}' file

or

awk 'BEGIN{FS=":"} {print $2 FS $3 "@" $1}' file

or

awk -F : '{print $2 ":" $3 "@" $1}' file

Output:

user1:pass1@ip1
user2:pass2@ip2
user3:pass3@ip3