awk - first script

first.awk

Enter the following in a file called first.awk

#!/bin/awk -f

# this is the top of the script
BEGIN { FS=":" }

# now let's do some processing
{ print "UID", $3, "belongs to", $1 }

#here is the end of the line
END { print "+++++++++++++++++++" }

Save this file and run it with the /etc/passwd file as an argument

    $ awk -f first.awk /etc/passwd

second.awk

Enter the following in a file called second.awk

#!/bin/awk -f

BEGIN { FS=":" }

{ print "UID", $3, "belongs to", $1 }

END { print "+++++++++++++++++++" }

Save this file and make it executable and run it with the /etc/passwd file as an argument

    $ chmod u+x second.awk
    $ first.awk /etc/passwd