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                         COMMAND                       

GO

 nl

 SYNTAX

          nl  [-options]  file

 FUNCTION

          nl adds line numbers to a file.  Line numbering 

          is reset at the start of each logical page.

 SOME OPTIONS: 

       -p         - do not restart numbering at logical

                    page delimiters.

       -i incr    - incr is the increment value used to number 

                    logical page lines.  The default is 1.

       -w width   - width is the number of characters to be used 

                    for the line number.  The default is 6.

 Let us use the nl command on the above file.

        datafile

    nl reads lines from

    the named file or

    standard input if

    no file is named,

    and reproduces the

    lines with numbers

    on the standard

    output.

 Please enter the nl command to print the above

 file incrementing by 5 and with a width of 10 characters 

 Enter here:  

 That is correct!

 You've got it on the 2nd try.

 Good, you understand the concept.

 Please use nl with -w10 and -i5 options.

 Please type nl -w10 -i5 datafile.

 I guess I must type this for you:

FORGET1

  nl -w10 -i5 datafile 

 Observe the result on above.

  1      nl reads lines from

  6      the named file or

 11      standard input if

 16      no file is named,

 21      and reproduces the

 26      lines with numbers

 31      on the standard

 36      output.