Shell Programming and Scripting

Hi everyone..

I am new here, hello.. I hope this doesn't come across to you folks as a stupid question, I'm somewhat new to scripting

I'm seeking some help in finding a way to manipulate data output for every two characters - example:

numbers.lst contains the following output:
1214325476

This is a phone number which has every two digits swapped...
12 14 32 54 76 -> 2141234567

Basically I want to run a command which would correct the output for numbers.lst (containing more than one number) and display the correct telephone number instead of the swapped values...

Would anyone possibly be able to suggest how I could perform this?

Thanks!

Code:

$ echo 1214325476 | sed "s/\([0-9]\)\([0-9]\)/\2\1/g"
2141234567

Code:

echo "1214325476" | perl -ple 's/(\d)(\d)(\d)(\d)(\d)(\d)(\d)(\d)(\d)(\d)/$2$1$4$3$6$5$8$7$10$9/'

2141234567

Better alternate:

Code:

echo "1214325476" | perl -ple 's/(\d)(\d)/$2$1/g'

2141234567

Thanks so much!